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followup for d1a46c68cd4
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remove ancient hard-coded treatment of --core-file. This enables
normal my_getopt behavior for the already existing sysvar
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The error was seen by a number of mtr tests being caused
by overdue initialization of rpl_parallel::LOCK_parallel_entry.
Specifically, SHOW-SLAVE-STATUS might find in
rpl_parallel::workers_idle() a gtid domain hash entry
already inserted whose mutex had not done
mysql_mutex_init().
Fixed with swapping the mutex init and the its entry's stack insertion.
Tested with a generous number of `mtr --repeat` of a few of the reported
to fail tests, incl rpl.parallel_backup.
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Timers require my_timer_init() call.
It was made only in mysqld_main(). Call it also from init_embedded_server().
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replication
When replicating MDL events for a table that uses system versioning
without primary keys, ensure that for data sets with duplicate
records, the updates to these records with duplicates are enacted on
the correct row. That is, there was a bug (reported in MDEV-30430)
such that the function to find the row to update would stop after
finding the first matching record. However, in the absence of
primary keys, the version of the record is needed to compare the row
to ensure we are updating the correct one.
The fix, therefore, updates the record comparison functionality to
use system version columns when there are no primary keys on the
table.
Reviewed By:
============
Andrei Elkin <andrei.elkin@mariadb.com>
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Removed trailing whitespaces
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Using_Gtid=Slave_Pos
Problem:
========
A master can segfault if it can't set up decryption for its binary
log during a binlog dump with Using_Gtid=Slave_Pos. If slave
connects using GTID mode, the master will call into
log.cc::get_gtid_list_event(), which iterate through binlog events
looking for a Gtid_list_log_event. On an encrypted binlog that the
master cannot decrypt, the first event will be a
START_ENCRYPTION_EVENT which will call into the following decryption branch
if (fdle->start_decryption((Start_encryption_log_event*) ev))
errormsg= ‘Could not set up decryption for binlog.’;
The event iteration however, does not stop in spite of this error.
The master will try to read the next event, but segfault while
trying to decrypt it because decryption failed to initialize.
Solution:
========
Break the event iteration if decryption cannot be set up.
Reviewed By:
============
Andrei Elkin <andrei.elkin@mariadb.com>
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This bug could manifest itself at the first execution of prepared statement
created for queries using a materialized view defined as union. A crash
could happen for sure if the query contained a condition pushable into
the view and this condition was over the column defined via a complex string
expression requiring implicit conversion from one charset to another for
some of its sub-expressions. The bug could cause crashes when executing
PS for some other queries whose optimization needed building clones for
such expressions.
This bug was introduced in the patch for MDEV-29988 where the class
Item_direct_ref_to_item was added. The implementations of the virtual
methods get_copy() and build_clone() were invalid for the class and this
could cause crashes after the method build_clone() was called for
expressions containing objects of the Item_direct_ref_to_item type.
Approved by Sergei Golubchik <serg@mariadb.com>
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Applying b98375f instead of 9b32e4b for version 10.5-10.8.
Applying 5075f4e instead of 9b32e4b for version 10.9+.
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When commit a5a2ef079cec378340d8b575aef05974b0b3442e
implemented asynchronous doublewrite, the writes via
the doublewrite buffer started to be counted incorrectly,
without multiplying them by innodb_page_size.
srv_export_innodb_status(): Correctly count the
Innodb_data_written.
buf_dblwr_t: Remove submitted(), because it is close to written()
and only Innodb_data_written was interested in it. According to
its name, it should count completed and not submitted writes.
Tested by: Axel Schwenke
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GTID State
If a replica failed to update the GTID slave state when committing
an XA PREPARE, the replica would retry the transaction and get an
out-of-order GTID error. This is because the commit phase of an XA
PREPARE is bifurcated. That is, first, the prepare is handled by the
relevant storage engines. Then second, the GTID slave state is
updated as a separate autocommit transaction. If the second phase
fails, and the transaction is retried, then the same transaction is
attempted to be committed again, resulting in a GTID out-of-order
error.
This patch fixes this error by immediately stopping the slave and
reporting the appropriate error. That is, there was logic to bypass
the error when updating the GTID slave state table if the underlying
error is allowed for retry on a parallel slave. This patch adds a
parameter to disallow the error bypass, thereby forcing the error
state to still happen.
Reviewed By
============
Andrei Elkin <andrei.elkin@mariadb.com>
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aria_log_dir_path is used
Fixing buildbot failures on mariabackup.aria_log_dir_path_rel.
The problem was that directory_exists() was called with the
relative aria_log_dir_path value, while the current directory
in mariadb-backup is not necessarily equal to datadir when MTR is running.
Fix:
- Moving building the absolute path un level upper:
from the function copy_back_aria_logs() to the function copy_back().
- Passing the built absolute path to both directory_exists() and
copy_back_aria_logs() as a parameter.
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This bug caused server crash when processing a multi-update statement that
used views if optimizer tracing was enabled.
The bug was introduced in the patch for MDEV-30539 that could incorrectly
detect the most top level selects of queries if views were used in them.
Approved by Oleksandr Byelkin <sanja@mariadb.com>
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- `mariadb-backup --backup` was fixed to fetch the value of the
@@aria_log_dir_path server variable and copy aria_log* files
from @@aria_log_dir_path directory to the backup directory.
Absolute and relative (to --datadir) paths are supported.
Before this change aria_log* files were copied to the backup
only if they were in the default location in @@datadir.
- `mariadb-backup --copy-back` now understands a new my.cnf and command line
parameter --aria-log-dir-path.
`mariadb-backup --copy-back` in the main loop in copy_back()
(when copying back from the backup directory to --datadir)
was fixed to ignore all aria_log* files.
A new function copy_back_aria_logs() was added.
It consists of a separate loop copying back aria_log* files from
the backup directory to the directory specified in --aria-log-dir-path.
Absolute and relative (to --datadir) paths are supported.
If --aria-log-dir-path is not specified,
aria_log* files are copied to --datadir by default.
- The function is_absolute_path() was fixed to understand MTR style
paths on Windows with forward slashes, e.g.
--aria-log-dir-path=D:/Buildbot/amd64-windows/build/mysql-test/var/...
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fp->field_length was unsigned and therefore the negative
condition around it.
Backport of cc182aca9352 fixes it, however to correct the
consistent use of types pcf->Length needs to be unsigned
too.
At one point pcf->Precision is assigned from pcf->Length so
that's also unsigned.
GetTypeSize is assigned to length and has a length argument.
A -1 default value seemed dangerious to case, so at least 0
should assert if every hit.
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in bootstrap the server reads stdin and does not listen to network.
it won't use ssl anyway
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spider_db_mbase::print_warnings()
The function spider_db_mbase::print_warnings() can potentially result
in a null pointer dereference.
Remove the null pointer dereference by cleaning up the function.
Some small changes to the original commit
422fb63a9bbee35c50b6c7be19d199afe0bc98fa.
Co-Authored-By: Yuchen Pei <yuchen.pei@mariadb.com>
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in order to be able to retrieve files using REST queries. Otherwise,
`ERROR 1105 (HY000): Curl not installed.` will be thrown.
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post-mortem debugger
Also, use standard C:\symbols location for OS debugging symbols cache,
rather than own invention C:\cdb_symbols.
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This patch fixes the problem by adding a new rule booleat_test.
This makes the grammar clearer and less conflicting.
Additionally, fixing %prec in this grammar branch:
- | boolean_test IS NULL_SYM %prec PREC_BELOW_NOT
+ | boolean_test IS NULL_SYM %prec IS
to have consistently "%prec IS" in all grammar branches starting
with "boolean_test IS ...".
It's not clear why these three rules needed different %prec before the fix:
- boolean_test IS TRUE
- boolean_test IS UNKNOWN
- boolean_test IS NULL
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This reverts commit eba099184e1f6704894694ea41f97f216eae5f21.
A different patch with less shift-reduce conflicts is coming.
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This bug manifested itself when the server processed a query containing
a derived table over union whose ORDER BY clause included a subquery
with unresolvable column reference. For such a query the server crashed
when trying to resolve column references in the ORDER BY clause used by
union.
For any union with ORDER BY clause an extra SELECT_LEX structure is created
and it is attached to SELECT_LEX_UNIT structure of the union via the field
fake_select_lex. The outer context for fake_select_lex must be the same as
for other selects of the union. If the union is used in the FROM list of
a derived table then the outer context for fake_select_lex must be set to
NULL in line with other selects of the union. It was not done and it
caused a crash when searching for possible resolution of an unresolvable
column reference occurred in a subquery used in the ORDER BY clause.
Approved by Oleksandr Byelkin <sanja@mariadb.com>
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Similar to 567b6812 continue to replace use of strcat() and
strcpy() with safer options strncat() and strncpy().
All new code of the whole pull request, including one or several files
that are either new files or modified ones, are contributed under the BSD-new
license. I am contributing on behalf of my employer Amazon Web Services
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do_shutdown_server(): After sending SIGKILL, invoke wait_until_dead().
Thanks to Sergei Golubchik for pointing out that the previous fix
does not actually work.
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- Change buffer should not buffer the changes for uncommitted index
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stored externally
row_merge_buf_add(): Has strict assert that fixed length mismatch
shouldn't happen while rebuilding the redundant row format table
btr_index_rec_validate(): Fixed size column can be stored externally.
So sum of inline stored length and external stored length of the
column should be equal to total column length
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fts0fts.cc line 551
This issue happens when race condition happens when DDL
and fts optimize thread. DDL adds the new index to fts cache.
At the same time, fts optimize thread clears the cache
and reinitialize it. Take cache init lock before reinitializing
the cache. fts_sync_commit() should take dict_sys mutex
to avoid the deadlock with create index.
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do_shutdown_server(): Call wait_until_dead() also when we are forcibly
killing the process (timeout=0). We have evidence that killing
the process may take some time and cause mystery failures in
crash recovery tests. For InnoDB, several failures were observed between
commit da094188f60bf67e3d90227304a4ea256fe2630f and
commit 0ee1082bd2e7e7049c4f0e686bad53cf7ba053ab
when no advisory file locking was being used by default.
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Assertion `thd->mdl_context.is_lock_owner()` fires when a client is
disconnected, while transaction and and a table is opened through
`HANDLER` interface.
Reason for the assertion is that when a connection closes, its ongoing
transaction is eventually rolled back in
`Wsrep_client_state::bf_rollback()`. This method also releases explicit
which are expected to survive beyond the transaction lifetime.
This patch also removes calls to `mysql_ull_cleanup()`. User level
locks are not supported in combination with Galera, making these calls
unnecessary.
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CREATE TABLE AS SELECT is not supported in combination with streaming
replication.
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The glibc headers declare fallocate only if _GNU_SOURCE is defined.
Without this change, the probe fails with C compilers which do not
support implicit function declarations even if the system does in
fact support the fallocate function.
Upstream rocksdb does not need this because the probe is run with the
C++ compiler, and current g++ versions define _GNU_SOURCE
automatically.
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Corrections from 1e58b8afc086da755cf9209ed17fc36351da5563.
* Re-add #pragma alloca for AIX - now in my_alloca.h
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This commit adds a new 'no-sni' option to socat which is required to
properly authenticate with newer socat versions (after version 1.7.4+).
This option is needed to disable the automatic use of the SNI feature
(Server Name Indication) since the SST script directly specifies the
commonname if necessary and automatic activation of the SNI feature
is unnecessary in such scenarios.
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This bug could affect multi-update statements as well as single-table
update statements processed as multi-updates when the where condition
contained a range condition over a non-indexed varchar column. The
optimizer calculates selectivity of such range conditions using histograms.
For each range the buckets containing endpoints of the the range are
determined with a procedure that stores the values of the endpoints in the
space of the record buffer where values of the columns are usually stored.
For a range over a varchar column the value of a endpoint may exceed the
size of the buffer and in such case the value is stored with truncation.
This truncations cannot affect the result of the calculation of the range
selectivity as the calculation employes only the beginning of the value
string. However it can trigger generation of an unexpected error on this
truncation if an update statement is processed.
This patch prohibits truncation messages when selectivity of a range
condition is calculated for a non-indexed column.
Approved by Oleksandr Byelkin <sanja@mariadb.com>
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This is a non-functional change.
simplifying the code logic:
- removing global variables ds_data and ds_meta
- passing these variables as parameters to functions instead
- adding helper classes: Datasink_free_list and Backup_datasinks
- moving some function accepting a ds_ctxt parameter
as methods to ds_ctxt.
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trans_rollback_stmt(THD*)
If we are inside stored function or trigger we should not commit
or rollback current statement transaction.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
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Signed-off-by: lilinjie <1136268146@qq.com>
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This problem was fixed earlier by MDEV-27653.
Adding MTR tests only.
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This problem was earlier fixed by MDEV-30034.
Adding MTR tests only.
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permitted for main PID yyyy" in systemd during SST
server has systemd support and calls sd_notify() to communicate
the status to systemd.
mariabackup links the whole server in, but it should not notify
systemd, because it's not started or managed by systemd.
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trx_purge_free_segment(): The buffer-fix only prevents a block from
being freed completely from the buffer pool, but it will not prevent
the block from being evicted. Recheck the page identifier after
acquiring an exclusive page latch. If it has changed, backtrack and
invoke buf_page_get_gen() to look up the page normally.
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one phase
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
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A GROUP BY query which uses "MIN(pk)" and has "pk<>const" in the
WHERE clause would produce wrong result when handled with "Using index
for group-by". Here "pk" column is the table's primary key.
The problem was introduced by fix for MDEV-23634. It made the range
optimizer to not produce ranges for conditions in form "pk != const".
However, LooseScan code requires that the optimizer is able to
convert the condition on the MIN/MAX column into an equivalent range.
The range is used to locate the row that has the MIN/MAX value.
LooseScan checks this in check_group_min_max_predicates(). This fix
makes the code in that function to take into account that "pk != const"
does not produce a range.
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