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Changed the way max_sescmd_history works and combined disable_sescmd_history and disable_slave_recovery.

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Before these changes when max_sescmd_history was used the session
was closed when the limit was exceeded. With this change, when the
limit is exceeded the recovery of slaves and the session command history
are both disabled. This will allow the sessions to continue while still
keeping the old functionality of limited salve replacement.

The disable_sescmd_history and disable_slave_recovery parameters were combined
so that disabling the session command history will also disable slave recovery.
This way no harm can be done with disable_sescmd_history.
This commit is contained in:
Markus Makela
2015-09-25 21:23:09 +03:00
parent 447c3aa6c1
commit 96f76a1f2e
3 changed files with 31 additions and 45 deletions
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22
server/modules/include/readwritesplit.h
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@ -242,19 +242,17 @@ typedef struct backend_ref_st {
#endif
} backend_ref_t;
typedef struct rwsplit_config_st {
int rw_max_slave_conn_percent;
int rw_max_slave_conn_count;
select_criteria_t rw_slave_select_criteria;
int rw_max_slave_replication_lag;
target_t rw_use_sql_variables_in;
int rw_max_sescmd_history_size;
bool disable_sescmd_hist;
bool disable_slave_recovery;
bool master_reads; /*< Use master for reads */
typedef struct rwsplit_config_st
{
int rw_max_slave_conn_percent;
int rw_max_slave_conn_count;
select_criteria_t rw_slave_select_criteria;
int rw_max_slave_replication_lag;
target_t rw_use_sql_variables_in;
int rw_max_sescmd_history_size;
bool rw_disable_sescmd_hist;
bool rw_master_reads; /*< Use master for reads */
} rwsplit_config_t;
#if defined(PREP_STMT_CACHING)