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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 63278c561c
commit 4e0cb6dbb7
9 changed files with 121 additions and 40 deletions
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18
sql/sql_repl.cc
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@ -1753,15 +1753,6 @@ public:
*/
};
class sys_var_sync_binlog_period :public sys_var_long_ptr
{
public:
sys_var_sync_binlog_period(sys_var_chain *chain, const char *name_arg,
ulong *value_ptr)
:sys_var_long_ptr(chain, name_arg,value_ptr) {}
bool update(THD *thd, set_var *var);
};
static sys_var_chain vars = { NULL, NULL };
static sys_var_const sys_log_slave_updates(&vars, "log_slave_updates",
@ -1793,7 +1784,8 @@ static sys_var_const sys_slave_skip_errors(&vars, "slave_skip_errors",
(uchar*) slave_skip_error_names);
static sys_var_long_ptr sys_slave_trans_retries(&vars, "slave_transaction_retries",
&slave_trans_retries);
static sys_var_sync_binlog_period sys_sync_binlog_period(&vars, "sync_binlog", &sync_binlog_period);
static sys_var_int_ptr sys_sync_binlog_period(&vars, "sync_binlog", &sync_binlog_period);
static sys_var_int_ptr sys_sync_relaylog_period(&vars, "sync_relay_log", &sync_relaylog_period);
static sys_var_slave_skip_counter sys_slave_skip_counter(&vars, "sql_slave_skip_counter");
@ -1835,12 +1827,6 @@ bool sys_var_slave_skip_counter::update(THD *thd, set_var *var)
}
bool sys_var_sync_binlog_period::update(THD *thd, set_var *var)
{
sync_binlog_period= (ulong) var->save_result.ulonglong_value;
return 0;
}
int init_replication_sys_vars()
{
if (mysql_add_sys_var_chain(vars.first, my_long_options))