diff options
Diffstat (limited to 'sql/rpl_rli.h')
| -rw-r--r-- | sql/rpl_rli.h | 35 |
1 files changed, 26 insertions, 9 deletions
diff --git a/sql/rpl_rli.h b/sql/rpl_rli.h index 7f04a3e5cdd..7c43f821295 100644 --- a/sql/rpl_rli.h +++ b/sql/rpl_rli.h @@ -96,6 +96,19 @@ public: LOG_INFO linfo; IO_CACHE cache_buf,*cur_log; + /* + Keeps track of the number of transactions that commits + before fsyncing. The option --sync-relay-log-info determines + how many transactions should commit before fsyncing. + */ + uint sync_counter; + + /* + Identifies when the recovery process is going on. + See sql/slave.cc:init_recovery for further details. + */ + bool is_relay_log_recovery; + /* The following variables are safe to read any time */ /* IO_CACHE of the info file - set only during init or end */ @@ -208,8 +221,14 @@ public: int events_till_abort; #endif - /* if not set, the value of other members of the structure are undefined */ - bool inited; + /* + inited changes its value within LOCK_active_mi-guarded critical + sections at times of start_slave_threads() (0->1) and end_slave() (1->0). + Readers may not acquire the mutex while they realize potential concurrency + issue. + If not set, the value of other members of the structure are undefined. + */ + volatile bool inited; volatile bool abort_slave; volatile uint slave_running; @@ -267,7 +286,7 @@ public: char slave_patternload_file[FN_REFLEN]; size_t slave_patternload_file_size; - Relay_log_info(); + Relay_log_info(bool is_slave_recovery); ~Relay_log_info(); /* @@ -344,12 +363,10 @@ public: void clear_tables_to_lock(); /* - Used by row-based replication to detect that it should not stop at - this event, but give it a chance to send more events. The time - where the last event inside a group started is stored here. If the - variable is zero, we are not in a group (but may be in a - transaction). - */ + Used to defer stopping the SQL thread to give it a chance + to finish up the current group of events. + The timestamp is set and reset in @c sql_slave_killed(). + */ time_t last_event_start_time; /** |