diff options
Diffstat (limited to 'sql/rpl_mi.cc')
| -rw-r--r-- | sql/rpl_mi.cc | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/sql/rpl_mi.cc b/sql/rpl_mi.cc index 5e46837e948..63f1f21c957 100644 --- a/sql/rpl_mi.cc +++ b/sql/rpl_mi.cc @@ -312,7 +312,7 @@ file '%s')", fname); mi->inited = 1; // now change cache READ -> WRITE - must do this before flush_master_info reinit_io_cache(&mi->file, WRITE_CACHE, 0L, 0, 1); - if ((error=test(flush_master_info(mi, 1)))) + if ((error=test(flush_master_info(mi, TRUE, TRUE)))) sql_print_error("Failed to flush master info file"); pthread_mutex_unlock(&mi->data_lock); DBUG_RETURN(error); @@ -338,10 +338,13 @@ err: 1 - flush master info failed 0 - all ok */ -int flush_master_info(Master_info* mi, bool flush_relay_log_cache) +int flush_master_info(Master_info* mi, + bool flush_relay_log_cache, + bool need_lock_relay_log) { IO_CACHE* file = &mi->file; char lbuf[22]; + int err= 0; DBUG_ENTER("flush_master_info"); DBUG_PRINT("enter",("master_pos: %ld", (long) mi->master_log_pos)); @@ -358,9 +361,23 @@ int flush_master_info(Master_info* mi, bool flush_relay_log_cache) When we come to this place in code, relay log may or not be initialized; the caller is responsible for setting 'flush_relay_log_cache' accordingly. */ - if (flush_relay_log_cache && - flush_io_cache(mi->rli.relay_log.get_log_file())) - DBUG_RETURN(2); + if (flush_relay_log_cache) + { + pthread_mutex_t *log_lock= mi->rli.relay_log.get_log_lock(); + IO_CACHE *log_file= mi->rli.relay_log.get_log_file(); + + if (need_lock_relay_log) + pthread_mutex_lock(log_lock); + + safe_mutex_assert_owner(log_lock); + err= flush_io_cache(log_file); + + if (need_lock_relay_log) + pthread_mutex_unlock(log_lock); + + if (err) + DBUG_RETURN(2); + } /* We flushed the relay log BEFORE the master.info file, because if we crash |