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BUG#35542 Add option to sync master and relay log to disk after every event

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BUG#31665 sync_binlog should cause relay logs to be synchronized

NOTE: Backporting the patch to next-mr.
      
Add sync_relay_log option to server, this option works for relay log 
the same as option sync_binlog for binlog. This option also synchronize
master info to disk when set to non-zero value.
            
Original patches from Sinisa and Mark, with some modifications
This commit is contained in:
Alfranio Correia
2009-09-29 15:27:12 +01:00
parent 25162d0166
commit 0110bd04d2
9 changed files with 121 additions and 40 deletions
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15
sql/mysqld.cc
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@ -552,7 +552,8 @@ ulong max_prepared_stmt_count;
*/
ulong prepared_stmt_count=0;
ulong thread_id=1L,current_pid;
ulong slow_launch_threads = 0, sync_binlog_period;
ulong slow_launch_threads = 0;
uint sync_binlog_period= 0, sync_relaylog_period= 0;
ulong expire_logs_days = 0;
ulong rpl_recovery_rank=0;
const char *log_output_str= "FILE";
@ -5667,7 +5668,8 @@ enum options_mysqld
OPT_SLAVE_EXEC_MODE,
OPT_GENERAL_LOG_FILE,
OPT_SLOW_QUERY_LOG_FILE,
OPT_IGNORE_BUILTIN_INNODB
OPT_IGNORE_BUILTIN_INNODB,
OPT_SYNC_RELAY_LOG
};
@ -6921,8 +6923,13 @@ The minimum value for this variable is 4096.",
{"sync-binlog", OPT_SYNC_BINLOG,
"Synchronously flush binary log to disk after every #th event. "
"Use 0 (default) to disable synchronous flushing.",
(uchar**) &sync_binlog_period, (uchar**) &sync_binlog_period, 0, GET_ULONG,
REQUIRED_ARG, 0, 0, ULONG_MAX, 0, 1, 0},
(uchar**) &sync_binlog_period, (uchar**) &sync_binlog_period, 0, GET_UINT,
REQUIRED_ARG, 0, 0, (longlong) UINT_MAX, 0, 1, 0},
{"sync-relay-log", OPT_SYNC_RELAY_LOG,
"Synchronously flush relay log to disk after every #th event. "
"Use 0 (default) to disable synchronous flushing.",
(uchar**) &sync_relaylog_period, (uchar**) &sync_relaylog_period, 0, GET_UINT,
REQUIRED_ARG, 0, 0, (longlong) UINT_MAX, 0, 1, 0},
{"sync-frm", OPT_SYNC_FRM, "Sync .frm to disk on create. Enabled by default.",
(uchar**) &opt_sync_frm, (uchar**) &opt_sync_frm, 0, GET_BOOL, NO_ARG, 1, 0,
0, 0, 0, 0},