From 64badb5f269850d0111aec29788aff7e181c195d Mon Sep 17 00:00:00 2001 From: unknown Date: Fri, 18 Sep 2009 16:20:29 +0800 Subject: Bug #42914 Log event that larger than max_allowed_packet results in stop of slave I/O thread, But there is no Last_IO_Error reported. On the master, if a binary log event is larger than max_allowed_packet, ER_MASTER_FATAL_ERROR_READING_BINLOG and the specific reason of this error is sent to a slave when it requests a dump from the master, thus leading the I/O thread to stop. On a slave, the I/O thread stops when receiving a packet larger than max_allowed_packet. In both cases, however, there was no Last_IO_Error reported. This patch adds code to report the Last_IO_Error and exact reason before stopping the I/O thread and also reports the case the out memory pops up while handling packets from the master. sql/sql_repl.cc: The master send the Specific reasons instead of "error reading log entry" to the slave which is requesting a dump. if an fatal error is returned by read_log_event function. --- sql/share/errmsg.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sql/share/errmsg.txt') diff --git a/sql/share/errmsg.txt b/sql/share/errmsg.txt index 3aba434b284..fdad2a44b68 100644 --- a/sql/share/errmsg.txt +++ b/sql/share/errmsg.txt @@ -4702,7 +4702,7 @@ ER_NOT_SUPPORTED_YET 42000 swe "Denna version av MySQL kan ännu inte utföra '%s'" ER_MASTER_FATAL_ERROR_READING_BINLOG nla "Kreeg fatale fout %d: '%-.128s' van master tijdens lezen van data uit binaire log" - eng "Got fatal error %d: '%-.128s' from master when reading data from binary log" + eng "Got fatal error %d from master when reading data from binary log: '%-.128s'" ger "Schwerer Fehler %d: '%-.128s vom Master beim Lesen des binären Logs" ita "Errore fatale %d: '%-.128s' dal master leggendo i dati dal log binario" por "Obteve fatal erro %d: '%-.128s' do master quando lendo dados do binary log" -- cgit v1.2.1 From 4d57b851a0335ac098d46dad5b9f698ff2cd3e43 Mon Sep 17 00:00:00 2001 From: Ingo Struewing Date: Tue, 29 Sep 2009 17:38:40 +0200 Subject: WL#4259 - Debug Sync Facility Backport from 6.0 to 5.1. Only those sync points are included, which are used in debug_sync.test. The Debug Sync Facility allows to place synchronization points in the code: open_tables(...) DEBUG_SYNC(thd, "after_open_tables"); lock_tables(...) When activated, a sync point can - Send a signal and/or - Wait for a signal Nomenclature: - signal: A value of a global variable that persists until overwritten by a new signal. The global variable can also be seen as a "signal post" or "flag mast". Then the signal is what is attached to the "signal post" or "flag mast". - send a signal: Assign the value (the signal) to the global variable ("set a flag") and broadcast a global condition to wake those waiting for a signal. - wait for a signal: Loop over waiting for the global condition until the global value matches the wait-for signal. Please find more information in the top comment in debug_sync.cc or in the worklog entry. .bzrignore: WL#4259 - Debug Sync Facility Added the symbolic link libmysqld/debug_sync.cc. CMakeLists.txt: WL#4259 - Debug Sync Facility Added definition for ENABLED_DEBUG_SYNC. configure.in: WL#4259 - Debug Sync Facility Added definition for ENABLED_DEBUG_SYNC. include/my_sys.h: WL#4259 - Debug Sync Facility Added definition for the DEBUG_SYNC_C macro. libmysqld/CMakeLists.txt: WL#4259 - Debug Sync Facility Added sql/debug_sync.cc. libmysqld/Makefile.am: WL#4259 - Debug Sync Facility Added sql/debug_sync.cc. mysql-test/include/have_debug_sync.inc: WL#4259 - Debug Sync Facility New include file. mysql-test/mysql-test-run.pl: WL#4259 - Debug Sync Facility Added option --debug_sync_timeout. mysql-test/r/debug_sync.result: WL#4259 - Debug Sync Facility New test result. mysql-test/r/have_debug_sync.require: WL#4259 - Debug Sync Facility New require file. mysql-test/t/debug_sync.test: WL#4259 - Debug Sync Facility New test file. mysys/my_static.c: WL#4259 - Debug Sync Facility Added definition for debug_sync_C_callback_ptr. mysys/thr_lock.c: WL#4259 - Debug Sync Facility Added sync point "wait_for_lock". sql/CMakeLists.txt: WL#4259 - Debug Sync Facility Added debug_sync.cc and debug_sync.h. sql/Makefile.am: WL#4259 - Debug Sync Facility Added debug_sync.cc and debug_sync.h. sql/debug_sync.cc: WL#4259 - Debug Sync Facility New source file. sql/debug_sync.h: WL#4259 - Debug Sync Facility New header file. sql/mysqld.cc: WL#4259 - Debug Sync Facility Added opt_debug_sync_timeout. Added calls to debug_sync_init() and debug_sync_end(). Fixed a purecov comment (unrelated). sql/set_var.cc: WL#4259 - Debug Sync Facility Added server variable "debug_sync". sql/set_var.h: WL#4259 - Debug Sync Facility Added declaration for server variable "debug_sync". sql/share/errmsg.txt: WL#4259 - Debug Sync Facility Added error messages ER_DEBUG_SYNC_TIMEOUT and ER_DEBUG_SYNC_HIT_LIMIT. sql/sql_base.cc: WL#4259 - Debug Sync Facility Added sync points "after_flush_unlock" and "before_lock_tables_takes_lock". sql/sql_class.cc: WL#4259 - Debug Sync Facility Added initialization for debug_sync_control to THD::THD. Added calls to debug_sync_init_thread() and debug_sync_end_thread(). sql/sql_class.h: WL#4259 - Debug Sync Facility Added element debug_sync_control to THD. storage/myisam/myisamchk.c: Fixed a typo in an error message string (unrelated). --- sql/share/errmsg.txt | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'sql/share/errmsg.txt') diff --git a/sql/share/errmsg.txt b/sql/share/errmsg.txt index fdad2a44b68..a17ad94ba82 100644 --- a/sql/share/errmsg.txt +++ b/sql/share/errmsg.txt @@ -6206,3 +6206,10 @@ ER_TOO_MANY_CONCURRENT_TRXS WARN_NON_ASCII_SEPARATOR_NOT_IMPLEMENTED eng "Non-ASCII separator arguments are not fully supported" + +ER_DEBUG_SYNC_TIMEOUT + eng "debug sync point wait timed out" + ger "Debug Sync Point Wartezeit überschritten" +ER_DEBUG_SYNC_HIT_LIMIT + eng "debug sync point hit limit reached" + ger "Debug Sync Point Hit Limit erreicht" -- cgit v1.2.1