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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef DBLQH_H
#define DBLQH_H
#include <pc.hpp>
#include <ndb_limits.h>
#include <SimulatedBlock.hpp>
#include <SLList.hpp>
#include <DLList.hpp>
#include <DLFifoList.hpp>
#include <DLHashTable.hpp>
#include <NodeBitmask.hpp>
#include <signaldata/LCP.hpp>
#include <signaldata/LqhTransConf.hpp>
#include <signaldata/LqhFrag.hpp>
#include <signaldata/FsOpenReq.hpp>
// primary key is stored in TUP
#include "../dbtup/Dbtup.hpp"
class Dbacc;
class Dbtup;
#ifdef DBLQH_C
// Constants
/* ------------------------------------------------------------------------- */
/* CONSTANTS USED WHEN MASTER REQUESTS STATE OF COPY FRAGMENTS. */
/* ------------------------------------------------------------------------- */
#define ZCOPY_CLOSING 0
#define ZCOPY_ONGOING 1
#define ZCOPY_ACTIVATION 2
/* ------------------------------------------------------------------------- */
/* STATES FOR THE VARIABLE GCP_LOG_PART_STATE */
/* ------------------------------------------------------------------------- */
#define ZIDLE 0
#define ZWAIT_DISK 1
#define ZON_DISK 2
#define ZACTIVE 1
/* ------------------------------------------------------------------------- */
/* STATES FOR THE VARIABLE CSR_PHASES_STARTED */
/* ------------------------------------------------------------------------- */
#define ZSR_NO_PHASE_STARTED 0
#define ZSR_PHASE1_COMPLETED 1
#define ZSR_PHASE2_COMPLETED 2
#define ZSR_BOTH_PHASES_STARTED 3
/* ------------------------------------------------------------------------- */
/* THE NUMBER OF PAGES IN A MBYTE, THE TWO LOGARITHM OF THIS. */
/* THE NUMBER OF MBYTES IN A LOG FILE. */
/* THE MAX NUMBER OF PAGES READ/WRITTEN FROM/TO DISK DURING */
/* A WRITE OR READ. */
/* ------------------------------------------------------------------------- */
#define ZNOT_DIRTY 0
#define ZDIRTY 1
#define ZREAD_AHEAD_SIZE 8
/* ------------------------------------------------------------------------- */
/* CONSTANTS OF THE LOG PAGES */
/* ------------------------------------------------------------------------- */
#define ZPAGE_HEADER_SIZE 32
#define ZNO_MBYTES_IN_FILE 16
#define ZPAGE_SIZE 8192
#define ZPAGES_IN_MBYTE 32
#define ZTWOLOG_NO_PAGES_IN_MBYTE 5
#define ZTWOLOG_PAGE_SIZE 13
#define ZMAX_MM_BUFFER_SIZE 32 // Main memory window during log execution
#define ZMAX_PAGES_WRITTEN 8 // Max pages before writing to disk (=> config)
#define ZMIN_READ_BUFFER_SIZE 2 // Minimum number of pages to execute log
#define ZMIN_LOG_PAGES_OPERATION 10 // Minimum no of pages before stopping
#define ZPOS_CHECKSUM 0
#define ZPOS_LOG_LAP 1
#define ZPOS_MAX_GCI_COMPLETED 2
#define ZPOS_MAX_GCI_STARTED 3
#define ZNEXT_PAGE 4
#define ZPREV_PAGE 5
#define ZPOS_VERSION 6
#define ZPOS_NO_LOG_FILES 7
#define ZCURR_PAGE_INDEX 8
#define ZLAST_LOG_PREP_REF 10
#define ZPOS_DIRTY 11
/* A number of debug items written in the page header of all log files */
#define ZPOS_LOG_TIMER 12
#define ZPOS_PAGE_I 13
#define ZPOS_PLACE_WRITTEN_FROM 14
#define ZPOS_PAGE_NO 15
#define ZPOS_PAGE_FILE_NO 16
#define ZPOS_WORD_WRITTEN 17
#define ZPOS_IN_WRITING 18
#define ZPOS_PREV_PAGE_NO 19
#define ZPOS_IN_FREE_LIST 20
/* ------------------------------------------------------------------------- */
/* CONSTANTS FOR THE VARIOUS REPLICA AND NODE TYPES. */
/* ------------------------------------------------------------------------- */
#define ZPRIMARY_NODE 0
#define ZBACKUP_NODE 1
#define ZSTANDBY_NODE 2
#define ZTC_NODE 3
#define ZLOG_NODE 3
/* ------------------------------------------------------------------------- */
/* VARIOUS CONSTANTS USED AS FLAGS TO THE FILE MANAGER. */
/* ------------------------------------------------------------------------- */
#define ZOPEN_READ 0
#define ZOPEN_WRITE 1
#define ZOPEN_READ_WRITE 2
#define ZVAR_NO_LOG_PAGE_WORD 1
#define ZLIST_OF_PAIRS 0
#define ZLIST_OF_PAIRS_SYNCH 16
#define ZARRAY_OF_PAGES 1
#define ZLIST_OF_MEM_PAGES 2
#define ZLIST_OF_MEM_PAGES_SYNCH 18
#define ZCLOSE_NO_DELETE 0
#define ZCLOSE_DELETE 1
#define ZPAGE_ZERO 0
/* ------------------------------------------------------------------------- */
/* THE FOLLOWING CONSTANTS ARE USED TO DESCRIBE THE TYPES OF */
/* LOG RECORDS, THE SIZE OF THE VARIOUS LOG RECORD TYPES AND */
/* THE POSITIONS WITHIN THOSE LOG RECORDS. */
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
/* THESE CONSTANTS DESCRIBE THE SIZES OF VARIOUS TYPES OF LOG REORDS. */
/* NEXT_LOG_SIZE IS ACTUALLY ONE. THE REASON WE SET IT TO 2 IS TO */
/* SIMPLIFY THE CODE SINCE OTHERWISE HAVE TO USE A SPECIAL VERSION */
/* OF READ_LOGWORD WHEN READING LOG RECORD TYPE */
/* SINCE NEXT MBYTE TYPE COULD BE THE VERY LAST WORD IN THE MBYTE. */
/* BY SETTING IT TO 2 WE ENSURE IT IS NEVER THE VERY LAST WORD */
/* IN THE MBYTE. */
/* ------------------------------------------------------------------------- */
#define ZFD_HEADER_SIZE 3
#define ZFD_PART_SIZE 48
#define ZLOG_HEAD_SIZE 8
#define ZNEXT_LOG_SIZE 2
#define ZABORT_LOG_SIZE 3
#define ZCOMMIT_LOG_SIZE 9
#define ZCOMPLETED_GCI_LOG_SIZE 2
/* ------------------------------------------------------------------------- */
/* THESE CONSTANTS DESCRIBE THE TYPE OF A LOG RECORD. */
/* THIS IS THE FIRST WORD OF A LOG RECORD. */
/* ------------------------------------------------------------------------- */
#define ZNEW_PREP_OP_TYPE 0
#define ZPREP_OP_TYPE 1
#define ZCOMMIT_TYPE 2
#define ZABORT_TYPE 3
#define ZFD_TYPE 4
#define ZFRAG_SPLIT_TYPE 5
#define ZNEXT_LOG_RECORD_TYPE 6
#define ZNEXT_MBYTE_TYPE 7
#define ZCOMPLETED_GCI_TYPE 8
#define ZINVALID_COMMIT_TYPE 9
/* ------------------------------------------------------------------------- */
/* THE POSITIONS OF LOGGED DATA IN A FILE DESCRIPTOR LOG RECORD HEADER.*/
/* ALSO THE MAXIMUM NUMBER OF FILE DESCRIPTORS IN A LOG RECORD. */
/* ------------------------------------------------------------------------- */
#define ZPOS_LOG_TYPE 0
#define ZPOS_NO_FD 1
#define ZPOS_FILE_NO 2
#define ZMAX_LOG_FILES_IN_PAGE_ZERO 40
/* ------------------------------------------------------------------------- */
/* THE POSITIONS WITHIN A PREPARE LOG RECORD AND A NEW PREPARE */
/* LOG RECORD. */
/* ------------------------------------------------------------------------- */
#define ZPOS_HASH_VALUE 2
#define ZPOS_SCHEMA_VERSION 3
#define ZPOS_TRANS_TICKET 4
#define ZPOS_OP_TYPE 5
#define ZPOS_NO_ATTRINFO 6
#define ZPOS_NO_KEYINFO 7
/* ------------------------------------------------------------------------- */
/* THE POSITIONS WITHIN A COMMIT LOG RECORD. */
/* ------------------------------------------------------------------------- */
#define ZPOS_COMMIT_TRANSID1 1
#define ZPOS_COMMIT_TRANSID2 2
#define ZPOS_COMMIT_GCI 3
#define ZPOS_COMMIT_TABLE_REF 4
#define ZPOS_COMMIT_FRAGID 5
#define ZPOS_COMMIT_FILE_NO 6
#define ZPOS_COMMIT_START_PAGE_NO 7
#define ZPOS_COMMIT_START_PAGE_INDEX 8
#define ZPOS_COMMIT_STOP_PAGE_NO 9
/* ------------------------------------------------------------------------- */
/* THE POSITIONS WITHIN A ABORT LOG RECORD. */
/* ------------------------------------------------------------------------- */
#define ZPOS_ABORT_TRANSID1 1
#define ZPOS_ABORT_TRANSID2 2
/* ------------------------------------------------------------------------- */
/* THE POSITION WITHIN A COMPLETED GCI LOG RECORD. */
/* ------------------------------------------------------------------------- */
#define ZPOS_COMPLETED_GCI 1
/* ------------------------------------------------------------------------- */
/* THE POSITIONS WITHIN A NEW PREPARE LOG RECORD. */
/* ------------------------------------------------------------------------- */
#define ZPOS_NEW_PREP_FILE_NO 8
#define ZPOS_NEW_PREP_PAGE_REF 9
#define ZLAST_WRITE_IN_FILE 1
#define ZENFORCE_WRITE 2
/* ------------------------------------------------------------------------- */
/* CONSTANTS USED AS INPUT TO SUBROUTINE WRITE_LOG_PAGES AMONG OTHERS. */
/* ------------------------------------------------------------------------- */
#define ZNORMAL 0
#define ZINIT 1
/* ------------------------------------------------------------------------- */
/* CONSTANTS USED BY CONTINUEB TO DEDUCE WHICH CONTINUE SIGNAL IS TO */
/* BE EXECUTED AS A RESULT OF THIS CONTINUEB SIGNAL. */
/* ------------------------------------------------------------------------- */
#define ZLOG_LQHKEYREQ 0
#define ZPACK_LQHKEYREQ 1
#define ZSEND_ATTRINFO 2
#define ZSR_GCI_LIMITS 3
#define ZSR_LOG_LIMITS 4
#define ZSEND_EXEC_CONF 5
#define ZEXEC_SR 6
#define ZSR_FOURTH_COMP 7
#define ZINIT_FOURTH 8
#define ZTIME_SUPERVISION 9
#define ZSR_PHASE3_START 10
#define ZLQH_TRANS_NEXT 11
#define ZLQH_RELEASE_AT_NODE_FAILURE 12
#define ZSCAN_TC_CONNECT 13
#define ZINITIALISE_RECORDS 14
#define ZINIT_GCP_REC 15
#define ZCHECK_LCP_STOP_BLOCKED 17
#define ZSCAN_MARKERS 18
#define ZOPERATION_EVENT_REP 19
#define ZPREP_DROP_TABLE 20
#define ZENABLE_EXPAND_CHECK 21
#define ZRETRY_TCKEYREF 22
/* ------------------------------------------------------------------------- */
/* NODE STATE DURING SYSTEM RESTART, VARIABLES CNODES_SR_STATE */
/* AND CNODES_EXEC_SR_STATE. */
/* ------------------------------------------------------------------------- */
#define ZSTART_SR 1
#define ZEXEC_SR_COMPLETED 2
/* ------------------------------------------------------------------------- */
/* CONSTANTS USED BY NODE STATUS TO DEDUCE THE STATUS OF A NODE. */
/* ------------------------------------------------------------------------- */
#define ZNODE_UP 0
#define ZNODE_DOWN 1
/* ------------------------------------------------------------------------- */
/* START PHASES */
/* ------------------------------------------------------------------------- */
#define ZLAST_START_PHASE 255
#define ZSTART_PHASE1 1
#define ZSTART_PHASE2 2
#define ZSTART_PHASE3 3
#define ZSTART_PHASE4 4
#define ZSTART_PHASE6 6
/* ------------------------------------------------------------------------- */
/* CONSTANTS USED BY SCAN AND COPY FRAGMENT PROCEDURES */
/* ------------------------------------------------------------------------- */
#define ZSTORED_PROC_SCAN 0
#define ZSTORED_PROC_COPY 2
#define ZDELETE_STORED_PROC_ID 3
#define ZWRITE_LOCK 1
#define ZSCAN_FRAG_CLOSED 2
/* ------------------------------------------------------------------------- */
/* ERROR CODES ADDED IN VERSION 0.1 AND 0.2 */
/* ------------------------------------------------------------------------- */
#define ZNOT_FOUND 1 // Not an error code, a return value
#define ZNO_FREE_LQH_CONNECTION 414
#define ZGET_DATAREC_ERROR 418
#define ZGET_ATTRINBUF_ERROR 419
#define ZNO_FREE_FRAGMENTREC 460 // Insert new fragment error code
#define ZTAB_FILE_SIZE 464 // Insert new fragment error code + Start kernel
#define ZNO_ADD_FRAGREC 465 // Insert new fragment error code
/* ------------------------------------------------------------------------- */
/* ERROR CODES ADDED IN VERSION 0.3 */
/* ------------------------------------------------------------------------- */
#define ZTAIL_PROBLEM_IN_LOG_ERROR 410
#define ZGCI_TOO_LOW_ERROR 429 // GCP_SAVEREF error code
#define ZTAB_STATE_ERROR 474 // Insert new fragment error code
#define ZTOO_NEW_GCI_ERROR 479 // LCP Start error
/* ------------------------------------------------------------------------- */
/* ERROR CODES ADDED IN VERSION 0.4 */
/* ------------------------------------------------------------------------- */
#define ZNO_FREE_FRAG_SCAN_REC_ERROR 490 // SCAN_FRAGREF error code
#define ZCOPY_NO_FRAGMENT_ERROR 491 // COPY_FRAGREF error code
#define ZTAKE_OVER_ERROR 499
#define ZCOPY_NODE_ERROR 1204
#define ZTOO_MANY_COPY_ACTIVE_ERROR 1208 // COPY_FRAG and COPY_ACTIVEREF code
#define ZCOPY_ACTIVE_ERROR 1210 // COPY_ACTIVEREF error code
#define ZNO_TC_CONNECT_ERROR 1217 // Simple Read + SCAN
/* ------------------------------------------------------------------------- */
/* ERROR CODES ADDED IN VERSION 1.X */
/* ------------------------------------------------------------------------- */
//#define ZSCAN_BOOK_ACC_OP_ERROR 1219 // SCAN_FRAGREF error code
#define ZFILE_CHANGE_PROBLEM_IN_LOG_ERROR 1220
#define ZTEMPORARY_REDO_LOG_FAILURE 1221
#define ZNO_FREE_MARKER_RECORDS_ERROR 1222
#define ZNODE_SHUTDOWN_IN_PROGESS 1223
#define ZTOO_MANY_FRAGMENTS 1224
#define ZTABLE_NOT_DEFINED 1225
#define ZDROP_TABLE_IN_PROGRESS 1226
#define ZINVALID_SCHEMA_VERSION 1227
/* ------------------------------------------------------------------------- */
/* ERROR CODES ADDED IN VERSION 2.X */
/* ------------------------------------------------------------------------- */
#define ZNODE_FAILURE_ERROR 400
/* ------------------------------------------------------------------------- */
/* ERROR CODES FROM ACC */
/* ------------------------------------------------------------------------- */
#define ZNO_TUPLE_FOUND 626
#define ZTUPLE_ALREADY_EXIST 630
/* ------------------------------------------------------------------------- */
/* ERROR CODES FROM TUP */
/* ------------------------------------------------------------------------- */
#define ZSEARCH_CONDITION_FALSE 899
#define ZUSER_ERROR_CODE_LIMIT 6000
#endif
/**
* @class dblqh
*
* @section secIntro Introduction
*
* Dblqh is the coordinator of the LDM. Dblqh is responsible for
* performing operations on tuples. It does this job with help of
* Dbacc block (that manages the index structures) and Dbtup
* (that manages the tuples).
*
* Dblqh also keeps track of the participants and acts as a coordinator of
* 2-phase commits. Logical redo logging is also handled by the Dblqh
* block.
*
* @section secModules Modules
*
* The code is partitioned into the following modules:
* - START / RESTART
* - Start phase 1: Load our block reference and our processor id
* - Start phase 2: Initiate all records within the block
* Connect LQH with ACC and TUP.
* - Start phase 4: Connect LQH with LQH. Connect every LQH with
* every LQH in the database system.
* If initial start, then create the fragment log files.
* If system restart or node restart,
* then open the fragment log files and
* find the end of the log files.
* - ADD / DELETE FRAGMENT<br>
* Used by dictionary to create new fragments and delete old fragments.
* - EXECUTION<br>
* handles the reception of lqhkeyreq and all processing
* of operations on behalf of this request.
* This does also involve reception of various types of attrinfo
* and keyinfo.
* It also involves communication with ACC and TUP.
* - LOG<br>
* The log module handles the reading and writing of the log.
* It is also responsible for handling system restart.
* It controls the system restart in TUP and ACC as well.
* - TRANSACTION<br>
* This module handles the commit and the complete phases.
* - MODULE TO HANDLE TC FAILURE<br>
* - SCAN<br>
* This module contains the code that handles a scan of a particular
* fragment.
* It operates under the control of TC and orders ACC to
* perform a scan of all tuples in the fragment.
* TUP performs the necessary search conditions
* to ensure that only valid tuples are returned to the application.
* - NODE RECOVERY<br>
* Used when a node has failed.
* It performs a copy of a fragment to a new replica of the fragment.
* It does also shut down all connections to the failed node.
* - LOCAL CHECKPOINT<br>
* Handles execution and control of LCPs
* It controls the LCPs in TUP and ACC.
* It also interacts with DIH to control which GCPs are recoverable.
* - GLOBAL CHECKPOINT<br>
* Helps DIH in discovering when GCPs are recoverable.
* It handles the request gcp_savereq that requests LQH to
* save a particular GCP to disk and respond when completed.
* - FILE HANDLING<br>
* With submodules:
* - SIGNAL RECEPTION
* - NORMAL OPERATION
* - FILE CHANGE
* - INITIAL START
* - SYSTEM RESTART PHASE ONE
* - SYSTEM RESTART PHASE TWO,
* - SYSTEM RESTART PHASE THREE
* - SYSTEM RESTART PHASE FOUR
* - ERROR
* - TEST
* - LOG
*/
class Dblqh: public SimulatedBlock {
public:
enum LcpCloseState {
LCP_IDLE = 0,
LCP_RUNNING = 1, // LCP is running
LCP_CLOSE_STARTED = 2, // Completion(closing of files) has started
ACC_LCP_CLOSE_COMPLETED = 3,
TUP_LCP_CLOSE_COMPLETED = 4
};
enum ExecUndoLogState {
EULS_IDLE = 0,
EULS_STARTED = 1,
EULS_COMPLETED = 2
};
struct AddFragRecord {
enum AddFragStatus {
FREE = 0,
ACC_ADDFRAG = 1,
WAIT_TUP = 3,
WAIT_TUX = 5,
WAIT_ADD_ATTR = 6,
TUP_ATTR_WAIT = 7,
TUX_ATTR_WAIT = 9
};
LqhAddAttrReq::Entry attributes[LqhAddAttrReq::MAX_ATTRIBUTES];
UintR accConnectptr;
AddFragStatus addfragStatus;
UintR dictConnectptr;
UintR fragmentPtr;
UintR nextAddfragrec;
UintR schemaVer;
UintR tupConnectptr;
UintR tuxConnectptr;
UintR checksumIndicator;
UintR GCPIndicator;
BlockReference dictBlockref;
Uint32 m_senderAttrPtr;
Uint16 addfragErrorCode;
Uint16 attrSentToTup;
Uint16 attrReceived;
Uint16 addFragid;
Uint16 noOfAttr;
Uint16 noOfNull;
Uint16 tabId;
Uint16 totalAttrReceived;
Uint16 fragCopyCreation;
Uint16 noOfKeyAttr;
Uint16 noOfCharsets;
Uint16 lh3DistrBits;
Uint16 tableType;
Uint16 primaryTableId;
Uint32 tablespace_id;
Uint32 maxRowsLow;
Uint32 maxRowsHigh;
Uint32 minRowsLow;
Uint32 minRowsHigh;
Uint32 forceVarPartFlag;
};
typedef Ptr<AddFragRecord> AddFragRecordPtr;
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* $$$$$$$ ATTRIBUTE INFORMATION RECORD $$$$$$$ */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/**
* Can contain one (1) attrinfo signal.
* One signal contains 24 attr. info words.
* But 32 elements are used to make plex happy.
* Some of the elements are used to the following things:
* - Data length in this record is stored in the
* element indexed by ZINBUF_DATA_LEN.
* - Next attrinbuf is pointed out by the element
* indexed by ZINBUF_NEXT.
*/
struct Attrbuf {
UintR attrbuf[32];
}; // Size 128 bytes
typedef Ptr<Attrbuf> AttrbufPtr;
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* $$$$$$$ DATA BUFFER $$$$$$$ */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/**
* This buffer is used as a general data storage.
*/
struct Databuf {
UintR data[4];
UintR nextDatabuf;
}; // size 20 bytes
typedef Ptr<Databuf> DatabufPtr;
struct ScanRecord {
ScanRecord() {}
enum ScanState {
SCAN_FREE = 0,
WAIT_STORED_PROC_COPY = 1,
WAIT_STORED_PROC_SCAN = 2,
WAIT_NEXT_SCAN_COPY = 3,
WAIT_NEXT_SCAN = 4,
WAIT_DELETE_STORED_PROC_ID_SCAN = 5,
WAIT_DELETE_STORED_PROC_ID_COPY = 6,
WAIT_ACC_COPY = 7,
WAIT_ACC_SCAN = 8,
WAIT_SCAN_NEXTREQ = 10,
WAIT_CLOSE_SCAN = 12,
WAIT_CLOSE_COPY = 13,
WAIT_RELEASE_LOCK = 14,
WAIT_TUPKEY_COPY = 15,
WAIT_LQHKEY_COPY = 16,
IN_QUEUE = 17
};
enum ScanType {
ST_IDLE = 0,
SCAN = 1,
COPY = 2
};
UintR scan_acc_op_ptr[32];
Uint32 scan_acc_index;
Uint32 scan_acc_attr_recs;
UintR scanApiOpPtr;
Local_key m_row_id;
Uint32 m_max_batch_size_rows;
Uint32 m_max_batch_size_bytes;
Uint32 m_curr_batch_size_rows;
Uint32 m_curr_batch_size_bytes;
bool check_scan_batch_completed() const;
UintR copyPtr;
union {
Uint32 nextPool;
Uint32 nextList;
};
Uint32 prevList;
Uint32 nextHash;
Uint32 prevHash;
bool equal(const ScanRecord & key) const {
return scanNumber == key.scanNumber && fragPtrI == key.fragPtrI;
}
Uint32 hashValue() const {
return fragPtrI ^ scanNumber;
}
UintR scanAccPtr;
UintR scanAiLength;
UintR scanErrorCounter;
UintR scanSchemaVersion;
/**
* This is _always_ main table, even in range scan
* in which case scanTcrec->fragmentptr is different
*/
Uint32 fragPtrI;
UintR scanStoredProcId;
ScanState scanState;
UintR scanTcrec;
ScanType scanType;
BlockReference scanApiBlockref;
NodeId scanNodeId;
Uint16 scanReleaseCounter;
Uint16 scanNumber;
// scan source block ACC TUX TUP
BlockReference scanBlockref;
Uint8 scanCompletedStatus;
Uint8 scanFlag;
Uint8 scanLockHold;
Uint8 scanLockMode;
Uint8 readCommitted;
Uint8 rangeScan;
Uint8 descending;
Uint8 tupScan;
Uint8 lcpScan;
Uint8 scanTcWaiting;
Uint8 scanKeyinfoFlag;
Uint8 m_last_row;
}; // Size 272 bytes
typedef Ptr<ScanRecord> ScanRecordPtr;
struct Fragrecord {
Fragrecord() {}
enum ExecSrStatus {
IDLE = 0,
ACTIVE_REMOVE_AFTER = 1,
ACTIVE = 2
};
/**
* Possible state transitions are:
* - FREE -> DEFINED Fragment record is allocated
* - DEFINED -> ACTIVE Add fragment is completed and
* fragment is ready to
* receive operations.
* - DEFINED -> ACTIVE_CREATION Add fragment is completed and
* fragment is ready to
* receive operations in parallel
* with a copy fragment
* which is performed from the
* primary replica
* - DEFINED -> CRASH_RECOVERING A fragment is ready to be
* recovered from a local
* checkpoint on disk
* - ACTIVE -> BLOCKED A local checkpoint is to be
* started. No more operations
* are allowed to be started until
* the local checkpoint
* has been started.
* - ACTIVE -> REMOVING A fragment is removed from the node
* - BLOCKED -> ACTIVE Operations are allowed again in
* the fragment.
* - CRASH_RECOVERING -> ACTIVE A fragment has been recovered and
* are now ready for
* operations again.
* - CRASH_RECOVERING -> REMOVING Fragment recovery failed or
* was cancelled.
* - ACTIVE_CREATION -> ACTIVE A fragment is now copied and now
* is a normal fragment
* - ACTIVE_CREATION -> REMOVING Copying of the fragment failed
* - REMOVING -> FREE Removing of the fragment is
* completed and the fragment
* is now free again.
*/
enum FragStatus {
FREE = 0, ///< Fragment record is currently not in use
FSACTIVE = 1, ///< Fragment is defined and usable for operations
DEFINED = 2, ///< Fragment is defined but not yet usable by
///< operations
BLOCKED = 3, ///< LQH is waiting for all active operations to
///< complete the current phase so that the
///< local checkpoint can be started.
ACTIVE_CREATION = 4, ///< Fragment is defined and active but is under
///< creation by the primary LQH.
CRASH_RECOVERING = 5, ///< Fragment is recovering after a crash by
///< executing the fragment log and so forth.
///< Will need further breakdown.
REMOVING = 6 ///< The fragment is currently removed.
///< Operations are not allowed.
};
enum LogFlag {
STATE_TRUE = 0,
STATE_FALSE = 1
};
enum SrStatus {
SS_IDLE = 0,
SS_STARTED = 1,
SS_COMPLETED = 2
};
enum LcpFlag {
LCP_STATE_TRUE = 0,
LCP_STATE_FALSE = 1
};
/**
* Last GCI for executing the fragment log in this phase.
*/
UintR execSrLastGci[4];
/**
* Start GCI for executing the fragment log in this phase.
*/
UintR execSrStartGci[4];
/**
* Requesting user pointer for executing the fragment log in
* this phase
*/
UintR execSrUserptr[4];
/**
* The LCP identifier of the LCP's.
* =0 means that the LCP number has not been stored.
* The LCP identifier is supplied by DIH when starting the LCP.
*/
UintR lcpId[MAX_LCP_STORED];
UintR maxGciInLcp;
/**
* This variable contains the maximum global checkpoint
* identifier that exists in a certain local checkpoint.
* Maximum 4 local checkpoints is possible in this release.
*/
UintR maxGciCompletedInLcp;
UintR srLastGci[4];
UintR srStartGci[4];
/**
* The fragment pointers in ACC
*/
UintR accFragptr;
/**
* The EXEC_SR variables are used to keep track of which fragments
* that are interested in being executed as part of executing the
* fragment loop.
* It is initialised for every phase of executing the
* fragment log (the fragment log can be executed upto four times).
*
* Each execution is capable of executing the log records on four
* fragment replicas.
*/
/**
* Requesting block reference for executing the fragment log
* in this phase.
*/
BlockReference execSrBlockref[4];
/**
* This variable contains references to active scan and copy
* fragment operations on the fragment.
* A maximum of four concurrently active is allowed.
*/
typedef Bitmask<4> ScanNumberMask;
ScanNumberMask m_scanNumberMask;
DLList<ScanRecord>::Head m_activeScans;
DLFifoList<ScanRecord>::Head m_queuedScans;
Uint16 srLqhLognode[4];
/**
* The fragment pointers in TUP and TUX
*/
UintR tupFragptr;
UintR tuxFragptr;
/**
* This variable keeps track of how many operations that are
* active that have skipped writing the log but not yet committed
* or aborted. This is used during start of fragment.
*/
UintR activeTcCounter;
/**
* This status specifies whether this fragment is actively
* engaged in executing the fragment log.
*/
ExecSrStatus execSrStatus;
/**
* The fragment id of this fragment.
*/
UintR fragId;
/**
* Status of fragment
*/
FragStatus fragStatus;
/**
* 0 = undefined i.e fragStatus != ACTIVE_CREATION
* 1 = yes
* 2 = no
*/
enum ActiveCreat {
AC_NORMAL = 0, // fragStatus != ACTIVE_CREATION
AC_IGNORED = 1, // Operation that got ignored during NR
AC_NR_COPY = 2 // Operation that got performed during NR
};
Uint8 m_copy_started_state;
/**
* This flag indicates whether logging is currently activated at
* the fragment.
* During a system restart it is temporarily shut off.
* Some fragments have it permanently shut off.
*/
LogFlag logFlag;
UintR masterPtr;
/**
* This variable contains the maximum global checkpoint identifier
* which was completed when the local checkpoint was started.
*/
/**
* Reference to the next fragment record in a free list of fragment
* records.
*/
union {
Uint32 nextPool;
Uint32 nextList;
};
Uint32 prevList;
/**
* The newest GCI that has been committed on fragment
*/
UintR newestGci;
SrStatus srStatus;
UintR srUserptr;
/**
* The starting global checkpoint of this fragment.
*/
UintR startGci;
/**
* A reference to the table owning this fragment.
*/
UintR tabRef;
/**
* This is the queue to put operations that have been blocked
* during start of a local chkp.
*/
UintR firstWaitQueue;
UintR lastWaitQueue;
/**
* The block reference to ACC on the fragment makes it
* possible to have different ACC blocks for different
* fragments in the future.
*/
BlockReference accBlockref;
/**
* Ordered index block.
*/
BlockReference tuxBlockref;
/**
* The master block reference as sent in COPY_ACTIVEREQ.
*/
BlockReference masterBlockref;
/**
* These variables are used during system restart to recall
* from which node to execute the fragment log and which GCI's
* this node should start and stop from. Also to remember who
* to send the response to when system restart is completed.
*/
BlockReference srBlockref;
/**
* The block reference to TUP on the fragment makes it
* possible to have different TUP blocks for different
* fragments in the future.
*/
BlockReference tupBlockref;
/**
* This state indicates if the fragment will participate in a
* checkpoint.
* Temporary tables with Fragrecord::logFlag permanently off
* will also have Fragrecord::lcpFlag off.
*/
LcpFlag lcpFlag;
/**
* Used to ensure that updates started with old
* configuration do not arrive here after the copy fragment
* has started.
* If they are allowed to arrive after they
* could update a record that has already been replicated to
* the new node. This type of arrival should be extremely
* rare but we must anyway ensure that no harm is done.
*/
Uint16 copyNode;
/**
* This variable ensures that only one copy fragment is
* active at a time on the fragment.
*/
Uint8 copyFragState;
/**
* The number of fragment replicas that will execute the log
* records in this round of executing the fragment
* log. Maximum four is possible.
*/
Uint8 execSrNoReplicas;
/**
* This variable contains what type of replica this fragment
* is. Two types are possible:
* - Primary/Backup replica = 0
* - Stand-by replica = 1
*
* It is not possible to distinguish between primary and
* backup on a fragment.
* This can only be done per transaction.
* DIH can change from primary to backup without informing
* the various replicas about this change.
*/
Uint8 fragCopy;
/**
* This is the last fragment distribution key that we have
* heard of.
*/
Uint8 fragDistributionKey;
/**
* The identity of the next local checkpoint this fragment
* should perform.
*/
Uint8 nextLcp;
/**
* How many local checkpoints does the fragment contain
*/
Uint8 srChkpnr;
Uint8 srNoLognodes;
/**
* Table type.
*/
Uint8 tableType;
/**
* For ordered index fragment, i-value of corresponding
* fragment in primary table.
*/
UintR tableFragptr;
/**
* Log part
*/
Uint32 m_log_part_ptr_i;
};
typedef Ptr<Fragrecord> FragrecordPtr;
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* $$$$$$$ GLOBAL CHECKPOINT RECORD $$$$$$ */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/**
* This record describes a global checkpoint that is
* completed. It waits for all log records belonging to this
* global checkpoint to be saved on disk.
*/
struct GcpRecord {
/**
* The file number within each log part where the log was
* located when gcp_savereq was received. The last record
* belonging to this global checkpoint is certainly before
* this place in the log. We could come even closer but it
* would cost performance and doesn't seem like a good
* idea. This is simple and it works.
*/
Uint16 gcpFilePtr[4];
/**
* The page number within the file for each log part.
*/
Uint16 gcpPageNo[4];
/**
* The word number within the last page that was written for
* each log part.
*/
Uint16 gcpWordNo[4];
/**
* The identity of this global checkpoint.
*/
UintR gcpId;
/**
* The state of this global checkpoint, one for each log part.
*/
Uint8 gcpLogPartState[4];
/**
* The sync state of this global checkpoint, one for each
* log part.
*/
Uint8 gcpSyncReady[4];
/**
* User pointer of the sender of gcp_savereq (= master DIH).
*/
UintR gcpUserptr;
/**
* Block reference of the sender of gcp_savereq
* (= master DIH).
*/
BlockReference gcpBlockref;
}; // Size 44 bytes
typedef Ptr<GcpRecord> GcpRecordPtr;
struct HostRecord {
bool inPackedList;
UintR noOfPackedWordsLqh;
UintR packedWordsLqh[30];
UintR noOfPackedWordsTc;
UintR packedWordsTc[29];
BlockReference hostLqhBlockRef;
BlockReference hostTcBlockRef;
};// Size 128 bytes
typedef Ptr<HostRecord> HostRecordPtr;
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* $$$$$$ LOCAL CHECKPOINT SUPPORT RECORD $$$$$$$ */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/**
* This record contains the information about an outstanding
* request to TUP or ACC. Used for both local checkpoints and
* system restart.
*/
struct LcpLocRecord {
enum LcpLocstate {
IDLE = 0,
WAIT_TUP_PREPLCP = 1,
WAIT_LCPHOLDOP = 2,
HOLDOP_READY = 3,
ACC_WAIT_STARTED = 4,
ACC_STARTED = 5,
ACC_COMPLETED = 6,
TUP_WAIT_STARTED = 7,
TUP_STARTED = 8,
TUP_COMPLETED = 9,
SR_ACC_STARTED = 10,
SR_TUP_STARTED = 11,
SR_ACC_COMPLETED = 12,
SR_TUP_COMPLETED = 13
};
LcpLocstate lcpLocstate;
Uint32 lcpRef;
}; // 28 bytes
typedef Ptr<LcpLocRecord> LcpLocRecordPtr;
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* $$$$$$$ LOCAL CHECKPOINT RECORD $$$$$$$ */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/**
* This record contains the information about a local
* checkpoint that is ongoing. This record is also used as a
* system restart record.
*/
struct LcpRecord {
LcpRecord() { m_EMPTY_LCP_REQ.clear(); }
enum LcpState {
LCP_IDLE = 0,
LCP_COMPLETED = 2,
LCP_WAIT_FRAGID = 3,
LCP_WAIT_TUP_PREPLCP = 4,
LCP_WAIT_HOLDOPS = 5,
LCP_START_CHKP = 7,
LCP_BLOCKED_COMP = 8,
LCP_SR_WAIT_FRAGID = 9,
LCP_SR_STARTED = 10,
LCP_SR_COMPLETED = 11
};
LcpState lcpState;
bool firstFragmentFlag;
bool lastFragmentFlag;
struct FragOrd {
Uint32 fragPtrI;
LcpFragOrd lcpFragOrd;
};
FragOrd currentFragment;
bool lcpQueued;
FragOrd queuedFragment;
bool reportEmpty;
NdbNodeBitmask m_EMPTY_LCP_REQ;
Uint32 m_error;
Uint32 m_outstanding;
}; // Size 76 bytes
typedef Ptr<LcpRecord> LcpRecordPtr;
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* */
/* THE RECORDS THAT START BY LOG_ ARE A PART OF THE LOG MANAGER. */
/* THESE RECORDS ARE USED TO HANDLE THE FRAGMENT LOG. */
/* */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* $$$$$$$ LOG RECORD $$$$$$$ */
/* */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* THIS RECORD IS ALIGNED TO BE 256 BYTES. */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/**
* This record describes the current state of a log.
* A log consists of a number of log files.
* These log files are described by the log file record.
*
* There will be 4 sets of log files.
* Different tables will use different log files dependent
* on the table id.
* This ensures that more than one outstanding request can
* be sent to the file system.
* The log file to use is found by performing a very simple hash
* function.
*/
struct LogPartRecord {
enum LogPartState {
IDLE = 0, ///< Nothing happens at the moment
ACTIVE = 1, ///< An operation is active logging
SR_FIRST_PHASE = 2, ///< Finding the end of the log and
///< the information about global
///< checkpoints in the log is ongoing.
SR_FIRST_PHASE_COMPLETED = 3, ///< First phase completed
SR_THIRD_PHASE_STARTED = 4, ///< Executing fragment log is in 3rd ph
SR_THIRD_PHASE_COMPLETED = 5,
SR_FOURTH_PHASE_STARTED = 6, ///< Finding the log tail and head
///< is the fourth phase.
SR_FOURTH_PHASE_COMPLETED = 7,
FILE_CHANGE_PROBLEM = 8, ///< For some reason the write to
///< page zero in file zero have not
///< finished after 15 mbyte of
///< log data have been written
TAIL_PROBLEM = 9 ///< Only 1 mbyte of log left.
///< No operations allowed to enter the
///< log. Only special log records
///< are allowed
};
enum WaitWriteGciLog {
WWGL_TRUE = 0,
WWGL_FALSE = 1
};
enum LogExecState {
LES_IDLE = 0,
LES_SEARCH_STOP = 1,
LES_SEARCH_START = 2,
LES_EXEC_LOG = 3,
LES_EXEC_LOG_NEW_MBYTE = 4,
LES_EXEC_LOG_NEW_FILE = 5,
LES_EXEC_LOGREC_FROM_FILE = 6,
LES_EXEC_LOG_COMPLETED = 7,
LES_WAIT_READ_EXEC_SR_NEW_MBYTE = 8,
LES_WAIT_READ_EXEC_SR = 9,
LES_EXEC_LOG_INVALIDATE = 10
};
/**
* Is a CONTINUEB(ZLOG_LQHKEYREQ) signal sent and
* outstanding. We do not want several instances of this
* signal out in the air since that would create multiple
* writers of the list.
*/
UintR LogLqhKeyReqSent;
/**
* Contains the current log file where log records are
* written. During system restart it is used to indicate the
* last log file.
*/
UintR currentLogfile;
/**
* The log file used to execute log records from far behind.
*/
UintR execSrExecLogFile;
/**
* The currently executing prepare record starts in this log
* page. This variable is used to enable that a log record is
* executed multiple times in execution of the log.
*/
UintR execSrLogPage;
/**
* This variable keeps track of the lfo record where the
* pages that were read from disk when an operations log
* record were not found in the main memory buffer for log
* pages.
*/
UintR execSrLfoRec;
/**
* The starting page number when reading log from far behind.
*/
UintR execSrStartPageNo;
/**
* The last page number when reading log from far behind.
*/
UintR execSrStopPageNo;
/**
* Contains a reference to the first log file, file number 0.
*/
UintR firstLogfile;
/**
* The head of the operations queued for logging.
*/
UintR firstLogQueue;
/**
* This variable contains the oldest operation in this log
* part which have not been committed yet.
*/
UintR firstLogTcrec;
/**
* The first reference to a set of 8 pages. These are used
* during execution of the log to keep track of which pages
* are in memory and which are not.
*/
UintR firstPageRef;
/**
* This variable contains the global checkpoint record
* waiting for disk writes to complete.
*/
UintR gcprec;
/**
* The last reference to a set of 8 pages. These are used
* during execution of the log to keep track of which pages
* are in memory and which are not.
*/
UintR lastPageRef;
/**
* The tail of the operations queued for logging.
*/
UintR lastLogQueue;
/**
* This variable contains the newest operation in this log
* part which have not been committed yet.
*/
UintR lastLogTcrec;
/**
* This variable indicates which was the last mbyte that was
* written before the system crashed. Discovered during
* system restart.
*/
UintR lastLogfile;
/**
* This variable is used to keep track of the state during
* the third phase of the system restart, i.e. when
* LogPartRecord::logPartState ==
* LogPartRecord::SR_THIRD_PHASE_STARTED.
*/
LogExecState logExecState;
/**
* This variable contains the lap number of this log part.
*/
UintR logLap;
/**
* This variable contains the place to stop executing the log
* in this phase.
*/
UintR logLastGci;
/**
* This variable contains the place to start executing the
* log in this phase.
*/
UintR logStartGci;
/**
* The latest GCI completed in this log part.
*/
UintR logPartNewestCompletedGCI;
/**
* The current state of this log part.
*/
LogPartState logPartState;
/**
* A timer that is set every time a log page is sent to disk.
* Ensures that log pages are not kept in main memory for
* more than a certain time.
*/
UintR logPartTimer;
/**
* The current timer which is set by the periodic signal
* received by LQH
*/
UintR logTimer;
/**
* Contains the number of the log tail file and the mbyte
* reference within that file. This information ensures that
* the tail is not overwritten when writing new log records.
*/
UintR logTailFileNo;
/**
* The TcConnectionrec used during execution of this log part.
*/
UintR logTcConrec;
/**
* The number of pages that currently resides in the main
* memory buffer. It does not refer pages that are currently
* read from the log files. Only to pages already read
* from the log file.
*/
UintR mmBufferSize;
/**
* Contains the current number of log files in this log part.
*/
UintR noLogFiles;
/**
* This variable is used only during execution of a log
* record. It keeps track of in which page record a log
* record was started. It is used then to deduce which
* pages that are dirty after that the log records on the
* page have been executed.
*
* It is also used to find out where to write the invalidate
* command when that is needed.
*/
UintR prevLogpage;
/**
* The number of files remaining to gather GCI information
* for during system restart. Only used if number of files
* is larger than 60.
*/
UintR srRemainingFiles;
/**
* The log file where to start executing the log during
* system restart.
*/
UintR startLogfile;
/**
* The last log file in which to execute the log during system
* restart.
*/
UintR stopLogfile;
/**
* This variable keeps track of when we want to write a complete
* gci log record but have been blocked by an ongoing log operation.
*/
WaitWriteGciLog waitWriteGciLog;
/**
* The currently executing prepare record starts in this index
* in the log page.
*/
Uint16 execSrLogPageIndex;
/**
* Which of the four exec_sr's in the fragment is currently executing
*/
Uint16 execSrExecuteIndex;
/**
* The number of pages executed in the current mbyte.
*/
Uint16 execSrPagesExecuted;
/**
* The number of pages read from disk that have arrived and are
* currently awaiting execution of the log.
*/
Uint16 execSrPagesRead;
/**
* The number of pages read from disk and currently not arrived
* to the block.
*/
Uint16 execSrPagesReading;
/**
* This variable refers to the new header file where we will
* start writing the log after a system restart have been completed.
*/
Uint16 headFileNo;
/**
* This variable refers to the page number within the header file.
*/
Uint16 headPageNo;
/**
* This variable refers to the index within the new header
* page.
*/
Uint16 headPageIndex;
/**
* This variables indicates which was the last mbyte in the last
* logfile before a system crash. Discovered during system restart.
*/
Uint16 lastMbyte;
/**
* This variable is used only during execution of a log
* record. It keeps track of in which file page a log
* record was started. It is used if it is needed to write a
* dirty page to disk during log execution (this happens when
* commit records are invalidated).
*/
Uint16 prevFilepage;
/**
* This is used to save where we were in the execution of log
* records when we find a commit record that needs to be
* executed.
*
* This variable is also used to remember the index where the
* log type was in the log record. It is only used in this
* role when finding a commit record that needs to be
* invalidated.
*/
Uint16 savePageIndex;
Uint8 logTailMbyte;
/**
* The mbyte within the starting log file where to start
* executing the log.
*/
Uint8 startMbyte;
/**
* The last mbyte in which to execute the log during system
* restart.
*/
Uint8 stopMbyte;
/**
* This variable refers to the file where invalidation is
* occuring during system/node restart.
*/
Uint16 invalidateFileNo;
/**
* This variable refers to the page where invalidation is
* occuring during system/node restart.
*/
Uint16 invalidatePageNo;
}; // Size 164 Bytes
typedef Ptr<LogPartRecord> LogPartRecordPtr;
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* $$$$$$$ LOG FILE RECORD $$$$$$$ */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* THIS RECORD IS ALIGNED TO BE 288 (256 + 32) BYTES. */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/**
* This record contains information about a log file.
* A log file contains log records from several tables and
* fragments of a table. LQH can contain more than
* one log file to ensure faster log processing.
*
* The number of pages to write to disk at a time is
* configurable.
*/
struct LogFileRecord {
enum FileChangeState {
NOT_ONGOING = 0,
BOTH_WRITES_ONGOING = 1,
LAST_WRITE_ONGOING = 2,
FIRST_WRITE_ONGOING = 3,
WRITE_PAGE_ZERO_ONGOING = 4
};
enum LogFileStatus {
LFS_IDLE = 0, ///< Log file record not in use
CLOSED = 1, ///< Log file closed
OPENING_INIT = 2,
OPEN_SR_FRONTPAGE = 3, ///< Log file opened as part of system
///< restart. Open file 0 to find
///< the front page of the log part.
OPEN_SR_LAST_FILE = 4, ///< Open last log file that was written
///< before the system restart.
OPEN_SR_NEXT_FILE = 5, ///< Open a log file which is 16 files
///< backwards to find the next
///< information about GCPs.
OPEN_EXEC_SR_START = 6, ///< Log file opened as part of
///< executing
///< log during system restart.
OPEN_EXEC_SR_NEW_MBYTE = 7,
OPEN_SR_FOURTH_PHASE = 8,
OPEN_SR_FOURTH_NEXT = 9,
OPEN_SR_FOURTH_ZERO = 10,
OPENING_WRITE_LOG = 11, ///< Log file opened as part of writing
///< log during normal operation.
OPEN_EXEC_LOG = 12,
CLOSING_INIT = 13,
CLOSING_SR = 14, ///< Log file closed as part of system
///< restart. Currently trying to
///< find where to start executing the
///< log
CLOSING_EXEC_SR = 15, ///< Log file closed as part of
///< executing log during system restart
CLOSING_EXEC_SR_COMPLETED = 16,
CLOSING_WRITE_LOG = 17, ///< Log file closed as part of writing
///< log during normal operation.
CLOSING_EXEC_LOG = 18,
OPEN_INIT = 19,
OPEN = 20, ///< Log file open
OPEN_SR_INVALIDATE_PAGES = 21,
CLOSE_SR_INVALIDATE_PAGES = 22
};
/**
* When a new mbyte is started in the log we have to find out
* how far back in the log we still have prepared operations
* which have been neither committed or aborted. This variable
* keeps track of this value for each of the mbytes in this
* log file. This is used in writing down these values in the
* header of each log file. That information is used during
* system restart to find the tail of the log.
*/
UintR logLastPrepRef[16];
/**
* The max global checkpoint completed before the mbyte in the
* log file was started. One variable per mbyte.
*/
UintR logMaxGciCompleted[16];
/**
* The max global checkpoint started before the mbyte in the log
* file was started. One variable per mbyte.
*/
UintR logMaxGciStarted[16];
/**
* This variable contains the file name as needed by the file
* system when opening the file.
*/
UintR fileName[4];
/**
* This variable has a reference to the log page which is
* currently in use by the log.
*/
UintR currentLogpage;
/**
* The number of the current mbyte in the log file.
*/
UintR currentMbyte;
/**
* This variable is used when changing files. It is to find
* out when both the last write in the previous file and the
* first write in this file has been completed. After these
* writes have completed the variable keeps track of when the
* write to page zero in file zero is completed.
*/
FileChangeState fileChangeState;
/**
* The number of the file within this log part.
*/
UintR fileNo;
/**
* This variable shows where to read/write the next pages into
* the log. Used when writing the log during normal operation
* and when reading the log during system restart. It
* specifies the page position where each page is 8 kbyte.
*/
UintR filePosition;
/**
* This contains the file pointer needed by the file system
* when reading/writing/closing and synching.
*/
UintR fileRef;
/**
* The head of the pages waiting for shipment to disk.
* They are filled with log info.
*/
UintR firstFilledPage;
/**
* A list of active read/write operations on the log file.
* Operations are always put in last and the first should
* always complete first.
*/
UintR firstLfo;
UintR lastLfo;
/**
* The tail of the pages waiting for shipment to disk.
* They are filled with log info.
*/
UintR lastFilledPage;
/**
* This variable keeps track of the last written page in the
* file while writing page zero in file zero when changing log
* file.
*/
UintR lastPageWritten;
/**
* This variable keeps track of the last written word in the
* last page written in the file while writing page zero in
* file zero when changing log file.
*/
UintR lastWordWritten;
/**
* This variable contains the last word written in the last page.
*/
LogFileStatus logFileStatus;
/**
* A reference to page zero in this file.
* This page is written before the file is closed.
*/
UintR logPageZero;
/**
* This variable contains a reference to the record describing
* this log part. One of four records (0,1,2 or 3).
*/
UintR logPartRec;
/**
* Next free log file record or next log file in this log.
*/
UintR nextLogFile;
/**
* The previous log file.
*/
UintR prevLogFile;
/**
* The number of remaining words in this mbyte of the log file.
*/
UintR remainingWordsInMbyte;
/**
* The current file page within the current log file. This is
* a reference within the file and not a reference to a log
* page record. It is used to deduce where log records are
* written. Particularly completed gcp records and prepare log
* records.
*/
Uint16 currentFilepage;
/**
* The number of pages in the list referenced by
* LOG_PAGE_BUFFER.
*/
Uint16 noLogpagesInBuffer;
}; // Size 288 bytes
typedef Ptr<LogFileRecord> LogFileRecordPtr;
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* $$$$$$$ LOG OPERATION RECORD $$$$$$$ */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/**
* This record contains a currently active file operation
* that has started by the log module.
*/
struct LogFileOperationRecord {
enum LfoState {
IDLE = 0, ///< Operation is not used at the moment
INIT_WRITE_AT_END = 1, ///< Write in file so that it grows to
///< 16 Mbyte
INIT_FIRST_PAGE = 2, ///< Initialise the first page in a file
WRITE_GCI_ZERO = 3,
WRITE_INIT_MBYTE = 4,
WRITE_DIRTY = 5,
READ_SR_FRONTPAGE = 6, ///< Read page zero in file zero during
///< system restart
READ_SR_LAST_FILE = 7, ///< Read page zero in last file open
///< before system crash
READ_SR_NEXT_FILE = 8, ///< Read 60 files backwards to find
///< further information GCPs in page
///< zero
READ_SR_LAST_MBYTE = 9,
READ_EXEC_SR = 10,
READ_EXEC_LOG = 11,
READ_SR_FOURTH_PHASE = 12,
READ_SR_FOURTH_ZERO = 13,
FIRST_PAGE_WRITE_IN_LOGFILE = 14,
LAST_WRITE_IN_FILE = 15,
WRITE_PAGE_ZERO = 16,
ACTIVE_WRITE_LOG = 17, ///< A write operation during
///< writing of log
READ_SR_INVALIDATE_PAGES = 18,
WRITE_SR_INVALIDATE_PAGES = 19
};
/**
* We have to remember the log pages read.
* Otherwise we cannot build the linked list after the pages have
* arrived to main memory.
*/
UintR logPageArray[16];
/**
* A list of the pages that are part of this active operation.
*/
UintR firstLfoPage;
/**
* A timer to ensure that records are not lost.
*/
UintR lfoTimer;
/**
* The word number of the last written word in the last during
* a file write.
*/
UintR lfoWordWritten;
/**
* This variable contains the state of the log file operation.
*/
LfoState lfoState;
/**
* The log file that the file operation affects.
*/
UintR logFileRec;
/**
* The log file operations on a file are kept in a linked list.
*/
UintR nextLfo;
/**
* The page number of the first read/written page during a file
* read/write.
*/
Uint16 lfoPageNo;
/**
* The number of pages written or read during an operation to
* the log file.
*/
Uint16 noPagesRw;
}; // 92 bytes
typedef Ptr<LogFileOperationRecord> LogFileOperationRecordPtr;
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/* $$$$$$$ LOG PAGE RECORD $$$$$$$ */
/* $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */
/**
* These are the 8 k pages used to store log records before storing
* them in the file system.
* Since 64 kbyte is sent to disk at a time it is necessary to have
* at least 4*64 kbytes of log pages.
* To handle multiple outstanding requests we need some additional pages.
* Thus we allocate 1 mbyte to ensure that we do not get problems with
* insufficient number of pages.
*/
struct LogPageRecord {
/**
* This variable contains the pages that are sent to disk.
*
* All pages contain a header of 12 words:
* - WORD 0: CHECKSUM Calculated before storing on disk and
* checked when read from disk.
* - WORD 1: LAP How many wraparounds have the log
* experienced since initial start of the
* system.
* - WORD 2: MAX_GCI_COMPLETED Which is the maximum gci which have
* completed before this page. This
* gci will not be found in this
* page and hereafter in the log.
* - WORD 3: MAX_GCI_STARTED The maximum gci which have started
* before this page.
* - WORD 4: NEXT_PAGE Pointer to the next page.
* Only used in main memory
* - WORD 5: PREVIOUS_PAGE Pointer to the previous page.
* Currently not used.
* - WORD 6: VERSION NDB version that wrote the page.
* - WORD 7: NO_LOG_FILES Number of log files in this log part.
* - WORD 8: CURRENT PAGE INDEX This keeps track of where we are in the
* page.
* This is only used when pages is in
* memory.
* - WORD 9: OLD PREPARE FILE NO This keeps track of the oldest prepare
* operation still alive (not committed
* or aborted) when this mbyte started.
* - WORD 10: OLD PREPARE PAGE REF File page reference within this file
* number.
* Page no + Page index.
* If no prepare was alive then these
* values points this mbyte.
* - WORD 11: DIRTY FLAG = 0 means not dirty and
* = 1 means the page is dirty.
* Is used when executing log when
* a need to write invalid commit
* records arise.
*
* The remaining 2036 words are used for log information, i.e.
* log records.
*
* A log record on this page has the following layout:
* - WORD 0: LOG RECORD TYPE
* The following types are supported:
* - PREPARE OPERATION An operation not yet committed.
* - NEW PREPARE OPERATION A prepared operation already
* logged is inserted
* into the log again so that the
* log tail can be advanced.
* This can happen when a transaction is
* committed for a long time.
* - ABORT TRANSACTION A previously prepared transaction
* was aborted.
* - COMMIT TRANSACTION A previously prepared transaction
* was committed.
* - INVALID COMMIT A previous commit record was
* invalidated by a
* subsequent system restart.
* A log record must be invalidated
* in a system restart if it belongs
* to a global checkpoint id which
* is not included in the system
* restart.
* Otherwise it will be included in
* a subsequent system restart since
* it will then most likely belong
* to a global checkpoint id which
* is part of that system
* restart.
* This is not a correct behaviour
* since this operation is lost in a
* system restart and should not
* reappear at a later system
* restart.
* - COMPLETED GCI A GCI has now been completed.
* - FRAGMENT SPLIT A fragment has been split
* (not implemented yet)
* - FILE DESCRIPTOR This is always the first log record
* in a file.
* It is always placed on page 0 after
* the header.
* It is written when the file is
* opened and when the file is closed.
* - NEXT LOG RECORD This log record only records where
* the next log record starts.
* - NEXT MBYTE RECORD This log record specifies that there
* are no more log records in this mbyte.
*
*
* A FILE DESCRIPTOR log record continues as follows:
* - WORD 1: NO_LOG_DESCRIPTORS This defines the number of
* descriptors of log files that
* will follow hereafter (max 32).
* the log descriptor will describe
* information about
* max_gci_completed,
* max_gci_started and log_lap at
* every 1 mbyte of the log file
* since a log file is 16 mbyte
* always, i need 16 entries in the
* array with max_gci_completed,
* max_gci_started and log_lap. thus
* 32 entries per log file
* descriptor (max 32*48 = 1536,
* always fits in page 0).
* - WORD 2: LAST LOG FILE The number of the log file currently
* open. This is only valid in file 0.
* - WORD 3 - WORD 18: MAX_GCI_COMPLETED for every 1 mbyte
* in this log file.
* - WORD 19 - WORD 34: MAX_GCI_STARTED for every 1 mbyte
* in this log file.
*
* Then it continues for NO_LOG_DESCRIPTORS until all subsequent
* log files (max 32) have been properly described.
*
*
* A PREPARE OPERATION log record continues as follows:
* - WORD 1: LOG RECORD SIZE
* - WORD 2: HASH VALUE
* - WORD 3: SCHEMA VERSION
* - WORD 4: OPERATION TYPE
* = 0 READ,
* = 1 UPDATE,
* = 2 INSERT,
* = 3 DELETE
* - WORD 5: NUMBER OF WORDS IN ATTRINFO PART
* - WORD 6: KEY LENGTH IN WORDS
* - WORD 7 - (WORD 7 + KEY_LENGTH - 1) The tuple key
* - (WORD 7 + KEY_LENGTH) -
* (WORD 7 + KEY_LENGTH + ATTRINFO_LENGTH - 1) The attrinfo
*
* A log record can be spread in several pages in some cases.
* The next log record always starts immediately after this log record.
* A log record does however never traverse a 1 mbyte boundary.
* This is used to ensure that we can always come back if something
* strange occurs in the log file.
* To ensure this we also have log records which only records
* the next log record.
*
*
* A COMMIT TRANSACTION log record continues as follows:
* - WORD 1: TRANSACTION ID PART 1
* - WORD 2: TRANSACTION ID PART 2
* - WORD 3: FRAGMENT ID OF THE OPERATION
* - WORD 4: TABLE ID OF THE OPERATION
* - WORD 5: THE FILE NUMBER OF THE PREPARE RECORD
* - WORD 6: THE STARTING PAGE NUMBER OF THE PREPARE RECORD
* - WORD 7: THE STARTING PAGE INDEX OF THE PREPARE RECORD
* - WORD 8: THE STOP PAGE NUMBER OF THE PREPARE RECORD
* - WORD 9: GLOBAL CHECKPOINT OF THE TRANSACTION
*
*
* An ABORT TRANSACTION log record continues as follows:
* - WORD 1: TRANSACTION ID PART 1
* - WORD 2: TRANSACTION ID PART 2
*
*
* A COMPLETED CGI log record continues as follows:
* - WORD 1: THE COMPLETED GCI
*
*
* A NEXT LOG RECORD log record continues as follows:
* - There is no more information needed.
* The next log record will always refer to the start of the next page.
*
* A NEXT MBYTE RECORD log record continues as follows:
* - There is no more information needed.
* The next mbyte will always refer to the start of the next mbyte.
*/
UintR logPageWord[8192]; // Size 32 kbytes
};
typedef Ptr<LogPageRecord> LogPageRecordPtr;
struct PageRefRecord {
UintR pageRef[8];
UintR prNext;
UintR prPrev;
Uint16 prFileNo;
Uint16 prPageNo;
}; // size 44 bytes
typedef Ptr<PageRefRecord> PageRefRecordPtr;
struct Tablerec {
enum TableStatus {
TABLE_DEFINED = 0,
NOT_DEFINED = 1,
ADD_TABLE_ONGOING = 2,
PREP_DROP_TABLE_ONGOING = 3,
PREP_DROP_TABLE_DONE = 4
};
UintR fragrec[MAX_FRAG_PER_NODE];
Uint16 fragid[MAX_FRAG_PER_NODE];
/**
* Status of the table
*/
TableStatus tableStatus;
/**
* Table type and target table of index.
*/
Uint16 tableType;
Uint16 primaryTableId;
Uint32 schemaVersion;
Uint8 m_disk_table;
Uint32 usageCount;
NdbNodeBitmask waitingTC;
NdbNodeBitmask waitingDIH;
}; // Size 100 bytes
typedef Ptr<Tablerec> TablerecPtr;
struct TcConnectionrec {
enum ListState {
NOT_IN_LIST = 0,
WAIT_QUEUE_LIST = 3
};
enum LogWriteState {
NOT_STARTED = 0,
NOT_WRITTEN = 1,
NOT_WRITTEN_WAIT = 2,
WRITTEN = 3
};
enum AbortState {
ABORT_IDLE = 0,
ABORT_ACTIVE = 1,
NEW_FROM_TC = 2,
REQ_FROM_TC = 3,
ABORT_FROM_TC = 4,
ABORT_FROM_LQH = 5
};
enum TransactionState {
IDLE = 0,
/* -------------------------------------------------------------------- */
// Transaction in progress states
/* -------------------------------------------------------------------- */
WAIT_ACC = 1,
WAIT_TUPKEYINFO = 2,
WAIT_ATTR = 3,
WAIT_TUP = 4,
STOPPED = 5,
LOG_QUEUED = 6,
PREPARED = 7,
LOG_COMMIT_WRITTEN_WAIT_SIGNAL = 8,
LOG_COMMIT_QUEUED_WAIT_SIGNAL = 9,
/* -------------------------------------------------------------------- */
// Commit in progress states
/* -------------------------------------------------------------------- */
COMMIT_STOPPED = 10,
LOG_COMMIT_QUEUED = 11,
COMMIT_QUEUED = 12,
COMMITTED = 13,
WAIT_TUP_COMMIT= 35,
/* -------------------------------------------------------------------- */
// Abort in progress states
/* -------------------------------------------------------------------- */
WAIT_ACC_ABORT = 14,
ABORT_QUEUED = 15,
ABORT_STOPPED = 16,
WAIT_AI_AFTER_ABORT = 17,
LOG_ABORT_QUEUED = 18,
WAIT_TUP_TO_ABORT = 19,
/* -------------------------------------------------------------------- */
// Scan in progress states
/* -------------------------------------------------------------------- */
WAIT_SCAN_AI = 20,
SCAN_STATE_USED = 21,
SCAN_FIRST_STOPPED = 22,
SCAN_CHECK_STOPPED = 23,
SCAN_STOPPED = 24,
SCAN_RELEASE_STOPPED = 25,
SCAN_CLOSE_STOPPED = 26,
COPY_CLOSE_STOPPED = 27,
COPY_FIRST_STOPPED = 28,
COPY_STOPPED = 29,
SCAN_TUPKEY = 30,
COPY_TUPKEY = 31,
TC_NOT_CONNECTED = 32,
PREPARED_RECEIVED_COMMIT = 33, // Temporary state in write commit log
LOG_COMMIT_WRITTEN = 34 // Temporary state in write commit log
};
enum ConnectState {
DISCONNECTED = 0,
CONNECTED = 1,
COPY_CONNECTED = 2,
LOG_CONNECTED = 3
};
ConnectState connectState;
UintR copyCountWords;
UintR firstAttrinfo[5];
UintR tupkeyData[4];
UintR transid[2];
AbortState abortState;
UintR accConnectrec;
UintR applOprec;
UintR clientConnectrec;
UintR tcTimer;
UintR currReclenAi;
UintR currTupAiLen;
UintR firstAttrinbuf;
UintR firstTupkeybuf;
UintR fragmentid;
UintR fragmentptr;
UintR gci;
UintR hashValue;
UintR lastTupkeybuf;
UintR lastAttrinbuf;
/**
* Each operation (TcConnectrec) can be stored in max one out of many
* lists.
* This variable keeps track of which list it is in.
*/
ListState listState;
UintR logStartFileNo;
LogWriteState logWriteState;
UintR nextHashRec;
UintR nextLogTcrec;
UintR nextTcLogQueue;
UintR nextTc;
UintR nextTcConnectrec;
UintR prevHashRec;
UintR prevLogTcrec;
UintR prevTc;
UintR readlenAi;
UintR reqRef;
UintR reqinfo;
UintR schemaVersion;
UintR storedProcId;
UintR simpleTcConnect;
UintR tableref;
UintR tcOprec;
UintR tcScanInfo;
UintR tcScanRec;
UintR totReclenAi;
UintR totSendlenAi;
UintR tupConnectrec;
UintR savePointId;
TransactionState transactionState;
BlockReference applRef;
BlockReference clientBlockref;
BlockReference reqBlockref;
BlockReference tcBlockref;
BlockReference tcAccBlockref;
BlockReference tcTuxBlockref;
BlockReference tcTupBlockref;
Uint32 commitAckMarker;
union {
Uint32 m_scan_curr_range_no;
UintR noFiredTriggers;
};
Uint16 errorCode;
Uint16 logStartPageIndex;
Uint16 logStartPageNo;
Uint16 logStopPageNo;
Uint16 nextReplica;
Uint16 primKeyLen;
Uint16 save1;
Uint16 nodeAfterNext[3];
Uint8 activeCreat;
Uint8 apiVersionNo;
Uint8 dirtyOp;
Uint8 indTakeOver;
Uint8 lastReplicaNo;
Uint8 lockType;
Uint8 nextSeqNoReplica;
Uint8 opSimple;
Uint8 opExec;
Uint8 operation;
Uint8 reclenAiLqhkey;
Uint8 m_offset_current_keybuf;
Uint8 replicaType;
Uint8 simpleRead;
Uint8 seqNoReplica;
Uint8 tcNodeFailrec;
Uint8 m_disk_table;
Uint8 m_use_rowid;
Uint8 m_dealloc;
Uint32 m_log_part_ptr_i;
Local_key m_row_id;
struct {
Uint32 m_cnt;
Uint32 m_page_id[2];
Local_key m_disk_ref[2];
} m_nr_delete;
}; /* p2c: size = 280 bytes */
typedef Ptr<TcConnectionrec> TcConnectionrecPtr;
struct TcNodeFailRecord {
enum TcFailStatus {
TC_STATE_TRUE = 0,
TC_STATE_FALSE = 1,
TC_STATE_BREAK = 2
};
UintR lastNewTcRef;
UintR newTcRef;
TcFailStatus tcFailStatus;
UintR tcRecNow;
BlockReference lastNewTcBlockref;
BlockReference newTcBlockref;
Uint16 oldNodeId;
}; // Size 28 bytes
typedef Ptr<TcNodeFailRecord> TcNodeFailRecordPtr;
struct CommitLogRecord {
Uint32 startPageNo;
Uint32 startPageIndex;
Uint32 stopPageNo;
Uint32 fileNo;
};
public:
Dblqh(Block_context& ctx);
virtual ~Dblqh();
void receive_keyinfo(Signal*, Uint32 * data, Uint32 len);
void receive_attrinfo(Signal*, Uint32 * data, Uint32 len);
private:
BLOCK_DEFINES(Dblqh);
void execPACKED_SIGNAL(Signal* signal);
void execDEBUG_SIG(Signal* signal);
void execATTRINFO(Signal* signal);
void execKEYINFO(Signal* signal);
void execLQHKEYREQ(Signal* signal);
void execLQHKEYREF(Signal* signal);
void execCOMMIT(Signal* signal);
void execCOMPLETE(Signal* signal);
void execLQHKEYCONF(Signal* signal);
void execTESTSIG(Signal* signal);
void execLQH_RESTART_OP(Signal* signal);
void execCONTINUEB(Signal* signal);
void execSTART_RECREQ(Signal* signal);
void execSTART_RECCONF(Signal* signal);
void execEXEC_FRAGREQ(Signal* signal);
void execEXEC_FRAGCONF(Signal* signal);
void execEXEC_FRAGREF(Signal* signal);
void execSTART_EXEC_SR(Signal* signal);
void execEXEC_SRREQ(Signal* signal);
void execEXEC_SRCONF(Signal* signal);
void execREAD_PSEUDO_REQ(Signal* signal);
void build_acc(Signal*, Uint32 fragPtrI);
void execBUILDINDXREF(Signal*signal);
void execBUILDINDXCONF(Signal*signal);
void execDUMP_STATE_ORD(Signal* signal);
void execACC_ABORTCONF(Signal* signal);
void execNODE_FAILREP(Signal* signal);
void execCHECK_LCP_STOP(Signal* signal);
void execSEND_PACKED(Signal* signal);
void execTUP_ATTRINFO(Signal* signal);
void execREAD_CONFIG_REQ(Signal* signal);
void execLQHFRAGREQ(Signal* signal);
void execLQHADDATTREQ(Signal* signal);
void execTUP_ADD_ATTCONF(Signal* signal);
void execTUP_ADD_ATTRREF(Signal* signal);
void execACCFRAGCONF(Signal* signal);
void execACCFRAGREF(Signal* signal);
void execTUPFRAGCONF(Signal* signal);
void execTUPFRAGREF(Signal* signal);
void execTAB_COMMITREQ(Signal* signal);
void execACCSEIZECONF(Signal* signal);
void execACCSEIZEREF(Signal* signal);
void execREAD_NODESCONF(Signal* signal);
void execREAD_NODESREF(Signal* signal);
void execSTTOR(Signal* signal);
void execNDB_STTOR(Signal* signal);
void execTUPSEIZECONF(Signal* signal);
void execTUPSEIZEREF(Signal* signal);
void execACCKEYCONF(Signal* signal);
void execACCKEYREF(Signal* signal);
void execTUPKEYCONF(Signal* signal);
void execTUPKEYREF(Signal* signal);
void execABORT(Signal* signal);
void execABORTREQ(Signal* signal);
void execCOMMITREQ(Signal* signal);
void execCOMPLETEREQ(Signal* signal);
void execMEMCHECKREQ(Signal* signal);
void execSCAN_FRAGREQ(Signal* signal);
void execSCAN_NEXTREQ(Signal* signal);
void execACC_SCANCONF(Signal* signal);
void execACC_SCANREF(Signal* signal);
void execNEXT_SCANCONF(Signal* signal);
void execNEXT_SCANREF(Signal* signal);
void execACC_TO_REF(Signal* signal);
void execSTORED_PROCCONF(Signal* signal);
void execSTORED_PROCREF(Signal* signal);
void execCOPY_FRAGREQ(Signal* signal);
void execUPDATE_FRAG_DIST_KEY_ORD(Signal*);
void execCOPY_ACTIVEREQ(Signal* signal);
void execCOPY_STATEREQ(Signal* signal);
void execLQH_TRANSREQ(Signal* signal);
void execTRANSID_AI(Signal* signal);
void execINCL_NODEREQ(Signal* signal);
void execLCP_FRAG_ORD(Signal* signal);
void execEMPTY_LCP_REQ(Signal* signal);
void execSTART_FRAGREQ(Signal* signal);
void execSTART_RECREF(Signal* signal);
void execGCP_SAVEREQ(Signal* signal);
void execFSOPENCONF(Signal* signal);
void execFSCLOSECONF(Signal* signal);
void execFSWRITECONF(Signal* signal);
void execFSWRITEREF(Signal* signal);
void execFSREADCONF(Signal* signal);
void execFSREADREF(Signal* signal);
void execSCAN_HBREP(Signal* signal);
void execTIME_SIGNAL(Signal* signal);
void execFSSYNCCONF(Signal* signal);
void execALTER_TAB_REQ(Signal* signal);
void execALTER_TAB_CONF(Signal* signal);
void execCREATE_TRIG_CONF(Signal* signal);
void execCREATE_TRIG_REF(Signal* signal);
void execCREATE_TRIG_REQ(Signal* signal);
void execDROP_TRIG_CONF(Signal* signal);
void execDROP_TRIG_REF(Signal* signal);
void execDROP_TRIG_REQ(Signal* signal);
void execPREP_DROP_TAB_REQ(Signal* signal);
void execWAIT_DROP_TAB_REQ(Signal* signal);
void execDROP_TAB_REQ(Signal* signal);
void execLQH_ALLOCREQ(Signal* signal);
void execTUP_DEALLOCREQ(Signal* signal);
void execLQH_WRITELOG_REQ(Signal* signal);
void execTUXFRAGCONF(Signal* signal);
void execTUXFRAGREF(Signal* signal);
void execTUX_ADD_ATTRCONF(Signal* signal);
void execTUX_ADD_ATTRREF(Signal* signal);
// Statement blocks
void init_acc_ptr_list(ScanRecord*);
bool seize_acc_ptr_list(ScanRecord*, Uint32);
void release_acc_ptr_list(ScanRecord*);
Uint32 get_acc_ptr_from_scan_record(ScanRecord*, Uint32, bool);
void set_acc_ptr_in_scan_record(ScanRecord*, Uint32, Uint32);
void i_get_acc_ptr(ScanRecord*, Uint32*&, Uint32);
void removeTable(Uint32 tableId);
void sendLCP_COMPLETE_REP(Signal* signal, Uint32 lcpId);
void sendEMPTY_LCP_CONF(Signal* signal, bool idle);
void sendLCP_FRAGIDREQ(Signal* signal);
void sendLCP_FRAG_REP(Signal * signal, const LcpRecord::FragOrd &) const;
void updatePackedList(Signal* signal, HostRecord * ahostptr, Uint16 hostId);
void LQHKEY_abort(Signal* signal, int errortype);
void LQHKEY_error(Signal* signal, int errortype);
void nextRecordCopy(Signal* signal);
Uint32 calculateHash(Uint32 tableId, const Uint32* src);
void continueAfterCheckLcpStopBlocked(Signal* signal);
void checkLcpStopBlockedLab(Signal* signal);
void sendCommittedTc(Signal* signal, BlockReference atcBlockref);
void sendCompletedTc(Signal* signal, BlockReference atcBlockref);
void sendLqhkeyconfTc(Signal* signal, BlockReference atcBlockref);
void sendCommitLqh(Signal* signal, BlockReference alqhBlockref);
void sendCompleteLqh(Signal* signal, BlockReference alqhBlockref);
void sendPackedSignalLqh(Signal* signal, HostRecord * ahostptr);
void sendPackedSignalTc(Signal* signal, HostRecord * ahostptr);
void cleanUp(Signal* signal);
void sendAttrinfoLoop(Signal* signal);
void sendAttrinfoSignal(Signal* signal);
void sendLqhAttrinfoSignal(Signal* signal);
void sendKeyinfoAcc(Signal* signal, Uint32 pos);
Uint32 initScanrec(const class ScanFragReq *);
void initScanTc(const class ScanFragReq *,
Uint32 transid1,
Uint32 transid2,
Uint32 fragId,
Uint32 nodeId);
void finishScanrec(Signal* signal);
void releaseScanrec(Signal* signal);
void seizeScanrec(Signal* signal);
Uint32 sendKeyinfo20(Signal* signal, ScanRecord *, TcConnectionrec *);
void sendTCKEYREF(Signal*, Uint32 dst, Uint32 route, Uint32 cnt);
void sendScanFragConf(Signal* signal, Uint32 scanCompleted);
void initCopyrec(Signal* signal);
void initCopyTc(Signal* signal, Operation_t);
void sendCopyActiveConf(Signal* signal,Uint32 tableId);
void checkLcpCompleted(Signal* signal);
void checkLcpHoldop(Signal* signal);
bool checkLcpStarted(Signal* signal);
void checkLcpTupprep(Signal* signal);
void getNextFragForLcp(Signal* signal);
void sendAccContOp(Signal* signal);
void sendStartLcp(Signal* signal);
void setLogTail(Signal* signal, Uint32 keepGci);
Uint32 remainingLogSize(const LogFileRecordPtr &sltCurrLogFilePtr,
const LogPartRecordPtr &sltLogPartPtr);
void checkGcpCompleted(Signal* signal, Uint32 pageWritten, Uint32 wordWritten);
void initFsopenconf(Signal* signal);
void initFsrwconf(Signal* signal, bool write);
void initLfo(Signal* signal);
void initLogfile(Signal* signal, Uint32 fileNo);
void initLogpage(Signal* signal);
void openFileRw(Signal* signal, LogFileRecordPtr olfLogFilePtr);
void openLogfileInit(Signal* signal);
void openNextLogfile(Signal* signal);
void releaseLfo(Signal* signal);
void releaseLfoPages(Signal* signal);
void releaseLogpage(Signal* signal);
void seizeLfo(Signal* signal);
void seizeLogfile(Signal* signal);
void seizeLogpage(Signal* signal);
void writeFileDescriptor(Signal* signal);
void writeFileHeaderOpen(Signal* signal, Uint32 type);
void writeInitMbyte(Signal* signal);
void writeSinglePage(Signal* signal, Uint32 pageNo,
Uint32 wordWritten, Uint32 place);
void buildLinkedLogPageList(Signal* signal);
void changeMbyte(Signal* signal);
Uint32 checkIfExecLog(Signal* signal);
void checkNewMbyte(Signal* signal);
void checkReadExecSr(Signal* signal);
void checkScanTcCompleted(Signal* signal);
void closeFile(Signal* signal, LogFileRecordPtr logFilePtr, Uint32 place);
void completedLogPage(Signal* signal, Uint32 clpType, Uint32 place);
void deleteFragrec(Uint32 fragId);
void deleteTransidHash(Signal* signal);
void findLogfile(Signal* signal,
Uint32 fileNo,
LogPartRecordPtr flfLogPartPtr,
LogFileRecordPtr* parLogFilePtr);
void findPageRef(Signal* signal, CommitLogRecord* commitLogRecord);
int findTransaction(UintR Transid1, UintR Transid2, UintR TcOprec);
void getFirstInLogQueue(Signal* signal);
bool getFragmentrec(Signal* signal, Uint32 fragId);
void initialiseAddfragrec(Signal* signal);
void initialiseAttrbuf(Signal* signal);
void initialiseDatabuf(Signal* signal);
void initialiseFragrec(Signal* signal);
void initialiseGcprec(Signal* signal);
void initialiseLcpRec(Signal* signal);
void initialiseLfo(Signal* signal);
void initialiseLogFile(Signal* signal);
void initialiseLogPage(Signal* signal);
void initialiseLogPart(Signal* signal);
void initialisePageRef(Signal* signal);
void initialiseScanrec(Signal* signal);
void initialiseTabrec(Signal* signal);
void initialiseTcrec(Signal* signal);
void initialiseTcNodeFailRec(Signal* signal);
void initFragrec(Signal* signal,
Uint32 tableId,
Uint32 fragId,
Uint32 copyType);
void initFragrecSr(Signal* signal);
void initGciInLogFileRec(Signal* signal, Uint32 noFdDesc);
void initLcpSr(Signal* signal,
Uint32 lcpNo,
Uint32 lcpId,
Uint32 tableId,
Uint32 fragId,
Uint32 fragPtr);
void initLogpart(Signal* signal);
void initLogPointers(Signal* signal);
void initReqinfoExecSr(Signal* signal);
bool insertFragrec(Signal* signal, Uint32 fragId);
void linkFragQueue(Signal* signal);
void linkWaitLog(Signal* signal, LogPartRecordPtr regLogPartPtr);
void logNextStart(Signal* signal);
void moveToPageRef(Signal* signal);
void readAttrinfo(Signal* signal);
void readCommitLog(Signal* signal, CommitLogRecord* commitLogRecord);
void readExecLog(Signal* signal);
void readExecSrNewMbyte(Signal* signal);
void readExecSr(Signal* signal);
void readKey(Signal* signal);
void readLogData(Signal* signal, Uint32 noOfWords, Uint32* dataPtr);
void readLogHeader(Signal* signal);
Uint32 readLogword(Signal* signal);
Uint32 readLogwordExec(Signal* signal);
void readSinglePage(Signal* signal, Uint32 pageNo);
void releaseActiveCopy(Signal* signal);
void releaseAddfragrec(Signal* signal);
void releaseFragrec();
void releaseOprec(Signal* signal);
void releasePageRef(Signal* signal);
void releaseMmPages(Signal* signal);
void releasePrPages(Signal* signal);
void releaseTcrec(Signal* signal, TcConnectionrecPtr tcConnectptr);
void releaseTcrecLog(Signal* signal, TcConnectionrecPtr tcConnectptr);
void releaseWaitQueue(Signal* signal);
void removeLogTcrec(Signal* signal);
void removePageRef(Signal* signal);
Uint32 returnExecLog(Signal* signal);
int saveTupattrbuf(Signal* signal, Uint32* dataPtr, Uint32 length);
void seizeAddfragrec(Signal* signal);
void seizeAttrinbuf(Signal* signal);
Uint32 seize_attrinbuf();
Uint32 release_attrinbuf(Uint32);
Uint32 copy_bounds(Uint32 * dst, TcConnectionrec*);
void seizeFragmentrec(Signal* signal);
void seizePageRef(Signal* signal);
void seizeTcrec();
void seizeTupkeybuf(Signal* signal);
void sendAborted(Signal* signal);
void sendLqhTransconf(Signal* signal, LqhTransConf::OperationStatus);
void sendTupkey(Signal* signal);
void startExecSr(Signal* signal);
void startNextExecSr(Signal* signal);
void startTimeSupervision(Signal* signal);
void stepAhead(Signal* signal, Uint32 stepAheadWords);
void systemError(Signal* signal, int line);
void writeAbortLog(Signal* signal);
void writeCommitLog(Signal* signal, LogPartRecordPtr regLogPartPtr);
void writeCompletedGciLog(Signal* signal);
void writeDbgInfoPageHeader(LogPageRecordPtr logPagePtr, Uint32 place,
Uint32 pageNo, Uint32 wordWritten);
void writeDirty(Signal* signal, Uint32 place);
void writeKey(Signal* signal);
void writeLogHeader(Signal* signal);
void writeLogWord(Signal* signal, Uint32 data);
void writeNextLog(Signal* signal);
void errorReport(Signal* signal, int place);
void warningReport(Signal* signal, int place);
void invalidateLogAfterLastGCI(Signal *signal);
void readFileInInvalidate(Signal *signal);
void exitFromInvalidate(Signal* signal);
Uint32 calcPageCheckSum(LogPageRecordPtr logP);
Uint32 handleLongTupKey(Signal* signal, Uint32* dataPtr, Uint32 len);
// Generated statement blocks
void systemErrorLab(Signal* signal, int line);
void initFourth(Signal* signal);
void packLqhkeyreqLab(Signal* signal);
void sendNdbSttorryLab(Signal* signal);
void execSrCompletedLab(Signal* signal);
void execLogRecord(Signal* signal);
void srPhase3Comp(Signal* signal);
void srLogLimits(Signal* signal);
void srGciLimits(Signal* signal);
void srPhase3Start(Signal* signal);
void checkStartCompletedLab(Signal* signal);
void continueAbortLab(Signal* signal);
void abortContinueAfterBlockedLab(Signal* signal, bool canBlock);
void abortCommonLab(Signal* signal);
void localCommitLab(Signal* signal);
void abortErrorLab(Signal* signal);
void continueAfterReceivingAllAiLab(Signal* signal);
void abortStateHandlerLab(Signal* signal);
void writeAttrinfoLab(Signal* signal);
void scanAttrinfoLab(Signal* signal, Uint32* dataPtr, Uint32 length);
void abort_scan(Signal* signal, Uint32 scan_ptr_i, Uint32 errcode);
void localAbortStateHandlerLab(Signal* signal);
void logLqhkeyreqLab(Signal* signal);
void lqhAttrinfoLab(Signal* signal, Uint32* dataPtr, Uint32 length);
void rwConcludedAiLab(Signal* signal);
void aiStateErrorCheckLab(Signal* signal, Uint32* dataPtr, Uint32 length);
void takeOverErrorLab(Signal* signal);
void endgettupkeyLab(Signal* signal);
void noFreeRecordLab(Signal* signal,
const class LqhKeyReq * lqhKeyReq,
Uint32 errorCode);
void logLqhkeyrefLab(Signal* signal);
void closeCopyLab(Signal* signal);
void commitReplyLab(Signal* signal);
void completeUnusualLab(Signal* signal);
void completeTransNotLastLab(Signal* signal);
void completedLab(Signal* signal);
void copyCompletedLab(Signal* signal);
void completeLcpRoundLab(Signal* signal, Uint32 lcpId);
void continueAfterLogAbortWriteLab(Signal* signal);
void sendAttrinfoLab(Signal* signal);
void sendExecConf(Signal* signal);
void execSr(Signal* signal);
void srFourthComp(Signal* signal);
void timeSup(Signal* signal);
void closeCopyRequestLab(Signal* signal);
void closeScanRequestLab(Signal* signal);
void scanTcConnectLab(Signal* signal, Uint32 startTcCon, Uint32 fragId);
void initGcpRecLab(Signal* signal);
void prepareContinueAfterBlockedLab(Signal* signal);
void commitContinueAfterBlockedLab(Signal* signal);
void continueCopyAfterBlockedLab(Signal* signal);
void continueFirstCopyAfterBlockedLab(Signal* signal);
void continueFirstScanAfterBlockedLab(Signal* signal);
void continueScanAfterBlockedLab(Signal* signal);
void continueScanReleaseAfterBlockedLab(Signal* signal);
void continueCloseScanAfterBlockedLab(Signal* signal);
void continueCloseCopyAfterBlockedLab(Signal* signal);
void sendExecFragRefLab(Signal* signal);
void fragrefLab(Signal* signal, BlockReference retRef,
Uint32 retPtr, Uint32 errorCode);
void abortAddFragOps(Signal* signal);
void rwConcludedLab(Signal* signal);
void sendsttorryLab(Signal* signal);
void initialiseRecordsLab(Signal* signal, Uint32 data, Uint32, Uint32);
void startphase2Lab(Signal* signal, Uint32 config);
void startphase3Lab(Signal* signal);
void startphase4Lab(Signal* signal);
void startphase6Lab(Signal* signal);
void moreconnectionsLab(Signal* signal);
void scanReleaseLocksLab(Signal* signal);
void closeScanLab(Signal* signal);
void nextScanConfLoopLab(Signal* signal);
void scanNextLoopLab(Signal* signal);
void commitReqLab(Signal* signal, Uint32 gci);
void completeTransLastLab(Signal* signal);
void tupScanCloseConfLab(Signal* signal);
void tupCopyCloseConfLab(Signal* signal);
void accScanCloseConfLab(Signal* signal);
void accCopyCloseConfLab(Signal* signal);
void nextScanConfScanLab(Signal* signal);
void nextScanConfCopyLab(Signal* signal);
void continueScanNextReqLab(Signal* signal);
void keyinfoLab(const Uint32 * src, const Uint32 * end);
void copySendTupkeyReqLab(Signal* signal);
void storedProcConfScanLab(Signal* signal);
void storedProcConfCopyLab(Signal* signal);
void copyStateFinishedLab(Signal* signal);
void lcpCompletedLab(Signal* signal);
void lcpStartedLab(Signal* signal);
void contChkpNextFragLab(Signal* signal);
void startLcpRoundLab(Signal* signal);
void startFragRefLab(Signal* signal);
void srCompletedLab(Signal* signal);
void openFileInitLab(Signal* signal);
void openSrFrontpageLab(Signal* signal);
void openSrLastFileLab(Signal* signal);
void openSrNextFileLab(Signal* signal);
void openExecSrStartLab(Signal* signal);
void openExecSrNewMbyteLab(Signal* signal);
void openSrFourthPhaseLab(Signal* signal);
void openSrFourthZeroSkipInitLab(Signal* signal);
void openSrFourthZeroLab(Signal* signal);
void openExecLogLab(Signal* signal);
void checkInitCompletedLab(Signal* signal);
void closingSrLab(Signal* signal);
void closeExecSrLab(Signal* signal);
void execLogComp(Signal* signal);
void closeWriteLogLab(Signal* signal);
void closeExecLogLab(Signal* signal);
void writePageZeroLab(Signal* signal);
void lastWriteInFileLab(Signal* signal);
void initWriteEndLab(Signal* signal);
void initFirstPageLab(Signal* signal);
void writeGciZeroLab(Signal* signal);
void writeDirtyLab(Signal* signal);
void writeInitMbyteLab(Signal* signal);
void writeLogfileLab(Signal* signal);
void firstPageWriteLab(Signal* signal);
void readSrLastMbyteLab(Signal* signal);
void readSrLastFileLab(Signal* signal);
void readSrNextFileLab(Signal* signal);
void readExecSrLab(Signal* signal);
void readExecLogLab(Signal* signal);
void readSrFourthPhaseLab(Signal* signal);
void readSrFourthZeroLab(Signal* signal);
void copyLqhKeyRefLab(Signal* signal);
void restartOperationsLab(Signal* signal);
void lqhTransNextLab(Signal* signal);
void restartOperationsAfterStopLab(Signal* signal);
void startphase1Lab(Signal* signal, Uint32 config, Uint32 nodeId);
void tupkeyConfLab(Signal* signal);
void copyTupkeyConfLab(Signal* signal);
void scanTupkeyConfLab(Signal* signal);
void scanTupkeyRefLab(Signal* signal);
void accScanConfScanLab(Signal* signal);
void accScanConfCopyLab(Signal* signal);
void scanLockReleasedLab(Signal* signal);
void openSrFourthNextLab(Signal* signal);
void closingInitLab(Signal* signal);
void closeExecSrCompletedLab(Signal* signal);
void readSrFrontpageLab(Signal* signal);
void sendAddFragReq(Signal* signal);
void sendAddAttrReq(Signal* signal);
void checkDropTab(Signal*);
Uint32 checkDropTabState(Tablerec::TableStatus, Uint32) const;
// Initialisation
void initData();
void initRecords();
void define_backup(Signal*);
void execDEFINE_BACKUP_REF(Signal*);
void execDEFINE_BACKUP_CONF(Signal*);
void execBACKUP_FRAGMENT_REF(Signal* signal);
void execBACKUP_FRAGMENT_CONF(Signal* signal);
void execLCP_PREPARE_REF(Signal* signal);
void execLCP_PREPARE_CONF(Signal* signal);
void execEND_LCPREF(Signal* signal);
void execEND_LCPCONF(Signal* signal);
Uint32 m_backup_ptr;
void send_restore_lcp(Signal * signal);
void execRESTORE_LCP_REF(Signal* signal);
void execRESTORE_LCP_CONF(Signal* signal);
Dbtup* c_tup;
Dbacc* c_acc;
/**
* Read primary key from tup
*/
Uint32 readPrimaryKeys(ScanRecord*, TcConnectionrec*, Uint32 * dst);
/**
* Read primary key from operation
*/
public:
Uint32 readPrimaryKeys(Uint32 opPtrI, Uint32 * dst, bool xfrm);
private:
void acckeyconf_tupkeyreq(Signal*, TcConnectionrec*, Fragrecord*, Uint32, Uint32);
void acckeyconf_load_diskpage(Signal*,TcConnectionrecPtr,Fragrecord*,Uint32);
void handle_nr_copy(Signal*, Ptr<TcConnectionrec>);
void exec_acckeyreq(Signal*, Ptr<TcConnectionrec>);
int compare_key(const TcConnectionrec*, const Uint32 * ptr, Uint32 len);
void nr_copy_delete_row(Signal*, Ptr<TcConnectionrec>, Local_key*, Uint32);
public:
struct Nr_op_info
{
Uint32 m_ptr_i;
Uint32 m_tup_frag_ptr_i;
Uint32 m_gci;
Uint32 m_page_id;
Local_key m_disk_ref;
};
void get_nr_op_info(Nr_op_info*, Uint32 page_id = RNIL);
void nr_delete_complete(Signal*, Nr_op_info*);
public:
void acckeyconf_load_diskpage_callback(Signal*, Uint32, Uint32);
private:
void next_scanconf_load_diskpage(Signal* signal,
ScanRecordPtr scanPtr,
Ptr<TcConnectionrec> regTcPtr,
Fragrecord* fragPtrP);
void next_scanconf_tupkeyreq(Signal* signal, ScanRecordPtr,
TcConnectionrec * regTcPtr,
Fragrecord* fragPtrP,
Uint32 disk_page);
public:
void next_scanconf_load_diskpage_callback(Signal* signal, Uint32, Uint32);
void tupcommit_conf_callback(Signal* signal, Uint32 tcPtrI);
private:
void tupcommit_conf(Signal* signal, TcConnectionrec *,Fragrecord *);
// ----------------------------------------------------------------
// These are variables handling the records. For most records one
// pointer to the array of structs, one pointer-struct, a file size
// and a first free record variable. The pointer struct are temporary
// variables that are kept on the class object since there are often a
// great deal of those variables that exist simultaneously and
// thus no perfect solution of handling them is currently available.
// ----------------------------------------------------------------
/* ------------------------------------------------------------------------- */
/* POSITIONS WITHIN THE ATTRINBUF AND THE MAX SIZE OF DATA WITHIN AN */
/* ATTRINBUF. */
/* ------------------------------------------------------------------------- */
#define ZADDFRAGREC_FILE_SIZE 1
AddFragRecord *addFragRecord;
AddFragRecordPtr addfragptr;
UintR cfirstfreeAddfragrec;
UintR caddfragrecFileSize;
#define ZATTRINBUF_FILE_SIZE 12288 // 1.5 MByte
#define ZINBUF_DATA_LEN 24 /* POSITION OF 'DATA LENGHT'-VARIABLE. */
#define ZINBUF_NEXT 25 /* POSITION OF 'NEXT'-VARIABLE. */
Attrbuf *attrbuf;
AttrbufPtr attrinbufptr;
UintR cfirstfreeAttrinbuf;
UintR cattrinbufFileSize;
Uint32 c_no_attrinbuf_recs;
#define ZDATABUF_FILE_SIZE 10000 // 200 kByte
Databuf *databuf;
DatabufPtr databufptr;
UintR cfirstfreeDatabuf;
UintR cdatabufFileSize;
// Configurable
FragrecordPtr fragptr;
ArrayPool<Fragrecord> c_fragment_pool;
#define ZGCPREC_FILE_SIZE 1
GcpRecord *gcpRecord;
GcpRecordPtr gcpPtr;
UintR cgcprecFileSize;
// MAX_NDB_NODES is the size of this array
HostRecord *hostRecord;
UintR chostFileSize;
#define ZNO_CONCURRENT_LCP 1
LcpRecord *lcpRecord;
LcpRecordPtr lcpPtr;
UintR cfirstfreeLcpLoc;
UintR clcpFileSize;
#define ZLOG_PART_FILE_SIZE 4
LogPartRecord *logPartRecord;
LogPartRecordPtr logPartPtr;
UintR clogPartFileSize;
// Configurable
LogFileRecord *logFileRecord;
LogFileRecordPtr logFilePtr;
UintR cfirstfreeLogFile;
UintR clogFileFileSize;
#define ZLFO_FILE_SIZE 256 /* MAX 256 OUTSTANDING FILE OPERATIONS */
LogFileOperationRecord *logFileOperationRecord;
LogFileOperationRecordPtr lfoPtr;
UintR cfirstfreeLfo;
UintR clfoFileSize;
LogPageRecord *logPageRecord;
LogPageRecordPtr logPagePtr;
UintR cfirstfreeLogPage;
UintR clogPageFileSize;
#define ZPAGE_REF_FILE_SIZE 20
PageRefRecord *pageRefRecord;
PageRefRecordPtr pageRefPtr;
UintR cfirstfreePageRef;
UintR cpageRefFileSize;
#define ZSCANREC_FILE_SIZE 100
ArrayPool<ScanRecord> c_scanRecordPool;
ScanRecordPtr scanptr;
UintR cscanNoFreeRec;
Uint32 cscanrecFileSize;
// Configurable
Tablerec *tablerec;
TablerecPtr tabptr;
UintR ctabrecFileSize;
// Configurable
TcConnectionrec *tcConnectionrec;
TcConnectionrecPtr tcConnectptr;
UintR cfirstfreeTcConrec;
UintR ctcConnectrecFileSize;
// MAX_NDB_NODES is the size of this array
TcNodeFailRecord *tcNodeFailRecord;
TcNodeFailRecordPtr tcNodeFailptr;
UintR ctcNodeFailrecFileSize;
Uint16 terrorCode;
Uint32 c_firstInNodeGroup;
// ------------------------------------------------------------------------
// These variables are used to store block state which do not need arrays
// of struct's.
// ------------------------------------------------------------------------
Uint32 c_lcpId;
Uint32 cnoOfFragsCheckpointed;
/* ------------------------------------------------------------------------- */
// cmaxWordsAtNodeRec keeps track of how many words that currently are
// outstanding in a node recovery situation.
// cbookedAccOps keeps track of how many operation records that have been
// booked in ACC for the scan processes.
// cmaxAccOps contains the maximum number of operation records which can be
// allocated for scan purposes in ACC.
/* ------------------------------------------------------------------------- */
UintR cmaxWordsAtNodeRec;
UintR cbookedAccOps;
UintR cmaxAccOps;
/* ------------------------------------------------------------------------- */
/*THIS STATE VARIABLE IS ZTRUE IF AN ADD NODE IS ONGOING. ADD NODE MEANS */
/*THAT CONNECTIONS ARE SET-UP TO THE NEW NODE. */
/* ------------------------------------------------------------------------- */
Uint8 caddNodeState;
/* ------------------------------------------------------------------------- */
/*THIS VARIABLE SPECIFIES WHICH TYPE OF RESTART THAT IS ONGOING */
/* ------------------------------------------------------------------------- */
Uint16 cstartType;
/* ------------------------------------------------------------------------- */
/*THIS VARIABLE INDICATES WHETHER AN INITIAL RESTART IS ONGOING OR NOT. */
/* ------------------------------------------------------------------------- */
Uint8 cinitialStartOngoing;
/* ------------------------------------------------------------------------- */
/*THIS VARIABLE KEEPS TRACK OF WHEN TUP AND ACC HAVE COMPLETED EXECUTING */
/*THEIR UNDO LOG. */
/* ------------------------------------------------------------------------- */
ExecUndoLogState csrExecUndoLogState;
/* ------------------------------------------------------------------------- */
/*THIS VARIABLE KEEPS TRACK OF WHEN TUP AND ACC HAVE CONFIRMED COMPLETION */
/*OF A LOCAL CHECKPOINT ROUND. */
/* ------------------------------------------------------------------------- */
LcpCloseState clcpCompletedState;
/* ------------------------------------------------------------------------- */
/*DURING CONNECTION PROCESSES IN SYSTEM RESTART THESE VARIABLES KEEP TRACK */
/*OF HOW MANY CONNECTIONS AND RELEASES THAT ARE TO BE PERFORMED. */
/* ------------------------------------------------------------------------- */
/***************************************************************************>*/
/*THESE VARIABLES CONTAIN INFORMATION USED DURING SYSTEM RESTART. */
/***************************************************************************>*/
/* ------------------------------------------------------------------------- */
/*THIS VARIABLE IS ZTRUE IF THE SIGNAL START_REC_REQ HAVE BEEN RECEIVED. */
/*RECEPTION OF THIS SIGNAL INDICATES THAT ALL FRAGMENTS THAT THIS NODE */
/*SHOULD START HAVE BEEN RECEIVED. */
/* ------------------------------------------------------------------------- */
Uint8 cstartRecReq;
/* ------------------------------------------------------------------------- */
/*THIS VARIABLE KEEPS TRACK OF HOW MANY FRAGMENTS THAT PARTICIPATE IN */
/*EXECUTING THE LOG. IF ZERO WE DON'T NEED TO EXECUTE THE LOG AT ALL. */
/* ------------------------------------------------------------------------- */
UintR cnoFragmentsExecSr;
/* ------------------------------------------------------------------------- */
/*THIS VARIABLE KEEPS TRACK OF WHICH OF THE FIRST TWO RESTART PHASES THAT */
/*HAVE COMPLETED. */
/* ------------------------------------------------------------------------- */
Uint8 csrPhaseStarted;
/* ------------------------------------------------------------------------- */
/*NUMBER OF PHASES COMPLETED OF EXECUTING THE FRAGMENT LOG. */
/* ------------------------------------------------------------------------- */
Uint8 csrPhasesCompleted;
/* ------------------------------------------------------------------------- */
/*THE BLOCK REFERENCE OF THE MASTER DIH DURING SYSTEM RESTART. */
/* ------------------------------------------------------------------------- */
BlockReference cmasterDihBlockref;
/* ------------------------------------------------------------------------- */
/*THIS VARIABLE IS THE HEAD OF A LINKED LIST OF FRAGMENTS WAITING TO BE */
/*RESTORED FROM DISK. */
/* ------------------------------------------------------------------------- */
DLFifoList<Fragrecord> c_lcp_waiting_fragments; // StartFragReq'ed
DLFifoList<Fragrecord> c_lcp_restoring_fragments; // Restoring as we speek
DLFifoList<Fragrecord> c_lcp_complete_fragments; // Restored
DLFifoList<Fragrecord> c_redo_complete_fragments; // Redo'ed
/* ------------------------------------------------------------------------- */
/*USED DURING SYSTEM RESTART, INDICATES THE OLDEST GCI THAT CAN BE RESTARTED */
/*FROM AFTER THIS SYSTEM RESTART. USED TO FIND THE LOG TAIL. */
/* ------------------------------------------------------------------------- */
UintR crestartOldestGci;
/* ------------------------------------------------------------------------- */
/*USED DURING SYSTEM RESTART, INDICATES THE NEWEST GCI THAT CAN BE RESTARTED */
/*AFTER THIS SYSTEM RESTART. USED TO FIND THE LOG HEAD. */
/* ------------------------------------------------------------------------- */
UintR crestartNewestGci;
/* ------------------------------------------------------------------------- */
/*THE NUMBER OF LOG FILES. SET AS A PARAMETER WHEN NDB IS STARTED. */
/* ------------------------------------------------------------------------- */
UintR cnoLogFiles;
/* ------------------------------------------------------------------------- */
/*THESE TWO VARIABLES CONTAIN THE NEWEST GCI RECEIVED IN THE BLOCK AND THE */
/*NEWEST COMPLETED GCI IN THE BLOCK. */
/* ------------------------------------------------------------------------- */
UintR cnewestGci;
UintR cnewestCompletedGci;
/* ------------------------------------------------------------------------- */
/*THIS VARIABLE ONLY PASSES INFORMATION FROM STTOR TO STTORRY = TEMPORARY */
/* ------------------------------------------------------------------------- */
Uint16 csignalKey;
/* ------------------------------------------------------------------------- */
/*THIS VARIABLE CONTAINS THE CURRENT START PHASE IN THE BLOCK. IS ZNIL IF */
/*NO SYSTEM RESTART IS ONGOING. */
/* ------------------------------------------------------------------------- */
Uint16 cstartPhase;
/* ------------------------------------------------------------------------- */
/*THIS VARIABLE CONTAIN THE CURRENT GLOBAL CHECKPOINT RECORD. IT'S RNIL IF */
/*NOT A GCP SAVE IS ONGOING. */
/* ------------------------------------------------------------------------- */
UintR ccurrentGcprec;
/* ------------------------------------------------------------------------- */
/*THESE VARIABLES ARE USED TO KEEP TRACK OF ALL ACTIVE COPY FRAGMENTS IN LQH.*/
/* ------------------------------------------------------------------------- */
Uint8 cnoActiveCopy;
UintR cactiveCopy[4];
/* ------------------------------------------------------------------------- */
/*THESE VARIABLES CONTAIN THE BLOCK REFERENCES OF THE OTHER NDB BLOCKS. */
/*ALSO THE BLOCK REFERENCE OF MY OWN BLOCK = LQH */
/* ------------------------------------------------------------------------- */
BlockReference caccBlockref;
BlockReference ctupBlockref;
BlockReference ctuxBlockref;
BlockReference cownref;
UintR cLqhTimeOutCount;
UintR cLqhTimeOutCheckCount;
UintR cnoOfLogPages;
/* ------------------------------------------------------------------------- */
/*THIS VARIABLE CONTAINS MY OWN PROCESSOR ID. */
/* ------------------------------------------------------------------------- */
NodeId cownNodeid;
/* ------------------------------------------------------------------------- */
/*THESE VARIABLES CONTAIN INFORMATION ABOUT THE OTHER NODES IN THE SYSTEM */
/*THESE VARIABLES ARE MOSTLY USED AT SYSTEM RESTART AND ADD NODE TO SET-UP */
/*AND RELEASE CONNECTIONS TO OTHER NODES IN THE CLUSTER. */
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
/*THIS ARRAY CONTAINS THE PROCESSOR ID'S OF THE NODES THAT ARE ALIVE. */
/*CNO_OF_NODES SPECIFIES HOW MANY NODES THAT ARE CURRENTLY ALIVE. */
/*CNODE_VERSION SPECIFIES THE NDB VERSION EXECUTING ON THE NODE. */
/* ------------------------------------------------------------------------- */
UintR cpackedListIndex;
Uint16 cpackedList[MAX_NDB_NODES];
UintR cnodeData[MAX_NDB_NODES];
UintR cnodeStatus[MAX_NDB_NODES];
UintR cnoOfNodes;
NdbNodeBitmask m_sr_nodes;
NdbNodeBitmask m_sr_exec_sr_req;
NdbNodeBitmask m_sr_exec_sr_conf;
/* ------------------------------------------------------------------------- */
/* THIS VARIABLE CONTAINS THE DIRECTORY OF A HASH TABLE OF ALL ACTIVE */
/* OPERATION IN THE BLOCK. IT IS USED TO BE ABLE TO QUICKLY ABORT AN */
/* OPERATION WHERE THE CONNECTION WAS LOST DUE TO NODE FAILURES. IT IS */
/* ACTUALLY USED FOR ALL ABORTS COMMANDED BY TC. */
/* ------------------------------------------------------------------------- */
UintR preComputedRequestInfoMask;
UintR ctransidHash[1024];
Uint32 c_diskless;
Uint32 c_error_insert_table_id;
public:
bool is_same_trans(Uint32 opId, Uint32 trid1, Uint32 trid2);
void get_op_info(Uint32 opId, Uint32 *hash, Uint32* gci);
void accminupdate(Signal*, Uint32 opPtrI, const Local_key*);
/**
*
*/
struct CommitAckMarker {
CommitAckMarker() {}
Uint32 transid1;
Uint32 transid2;
Uint32 apiRef; // Api block ref
Uint32 apiOprec; // Connection Object in NDB API
Uint32 tcNodeId;
union { Uint32 nextPool; Uint32 nextHash; };
Uint32 prevHash;
inline bool equal(const CommitAckMarker & p) const {
return ((p.transid1 == transid1) && (p.transid2 == transid2));
}
inline Uint32 hashValue() const {
return transid1;
}
};
typedef Ptr<CommitAckMarker> CommitAckMarkerPtr;
ArrayPool<CommitAckMarker> m_commitAckMarkerPool;
DLHashTable<CommitAckMarker> m_commitAckMarkerHash;
typedef DLHashTable<CommitAckMarker>::Iterator CommitAckMarkerIterator;
void execREMOVE_MARKER_ORD(Signal* signal);
void scanMarkers(Signal* signal, Uint32 tcNodeFail, Uint32 bucket, Uint32 i);
struct Counters {
Counters() {}
Uint32 operations;
inline void clear(){
operations = 0;
}
};
Counters c_Counters;
inline bool getAllowRead() const {
return getNodeState().startLevel < NodeState::SL_STOPPING_3;
}
DLHashTable<ScanRecord> c_scanTakeOverHash;
inline bool TRACE_OP_CHECK(const TcConnectionrec* regTcPtr);
#ifdef ERROR_INSERT
void TRACE_OP_DUMP(const TcConnectionrec* regTcPtr, const char * pos);
#endif
};
inline
bool
Dblqh::ScanRecord::check_scan_batch_completed() const
{
Uint32 max_rows = m_max_batch_size_rows;
Uint32 max_bytes = m_max_batch_size_bytes;
return (max_rows > 0 && (m_curr_batch_size_rows >= max_rows)) ||
(max_bytes > 0 && (m_curr_batch_size_bytes >= max_bytes));
}
inline
void
Dblqh::i_get_acc_ptr(ScanRecord* scanP, Uint32* &acc_ptr, Uint32 index)
{
if (index == 0) {
acc_ptr= (Uint32*)&scanP->scan_acc_op_ptr[0];
} else {
Uint32 attr_buf_index, attr_buf_rec;
AttrbufPtr regAttrPtr;
jam();
attr_buf_rec= (index + 31) / 32;
attr_buf_index= (index - 1) & 31;
regAttrPtr.i= scanP->scan_acc_op_ptr[attr_buf_rec];
ptrCheckGuard(regAttrPtr, cattrinbufFileSize, attrbuf);
acc_ptr= (Uint32*)®AttrPtr.p->attrbuf[attr_buf_index];
}
}
inline
bool
Dblqh::is_same_trans(Uint32 opId, Uint32 trid1, Uint32 trid2)
{
TcConnectionrecPtr regTcPtr;
regTcPtr.i= opId;
ptrCheckGuard(regTcPtr, ctcConnectrecFileSize, tcConnectionrec);
return ((regTcPtr.p->transid[0] == trid1) &&
(regTcPtr.p->transid[1] == trid2));
}
inline
void
Dblqh::get_op_info(Uint32 opId, Uint32 *hash, Uint32* gci)
{
TcConnectionrecPtr regTcPtr;
regTcPtr.i= opId;
ptrCheckGuard(regTcPtr, ctcConnectrecFileSize, tcConnectionrec);
*hash= regTcPtr.p->hashValue;
*gci= regTcPtr.p->gci;
}
#include "../dbacc/Dbacc.hpp"
inline
void
Dblqh::accminupdate(Signal* signal, Uint32 opId, const Local_key* key)
{
TcConnectionrecPtr regTcPtr;
regTcPtr.i= opId;
ptrCheckGuard(regTcPtr, ctcConnectrecFileSize, tcConnectionrec);
signal->theData[0] = regTcPtr.p->accConnectrec;
signal->theData[1] = key->m_page_no << MAX_TUPLES_BITS | key->m_page_idx;
c_acc->execACCMINUPDATE(signal);
if (ERROR_INSERTED(5712) || ERROR_INSERTED(5713))
ndbout << " LK: " << *key;
regTcPtr.p->m_row_id = *key;
}
inline
bool
Dblqh::TRACE_OP_CHECK(const TcConnectionrec* regTcPtr)
{
return (ERROR_INSERTED(5712) &&
(regTcPtr->operation == ZINSERT ||
regTcPtr->operation == ZDELETE)) ||
ERROR_INSERTED(5713);
}
#endif
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