diff options
Diffstat (limited to 'sql/event_scheduler.cc')
| -rw-r--r-- | sql/event_scheduler.cc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sql/event_scheduler.cc b/sql/event_scheduler.cc index 64bba756be9..3c8ecf6ca3a 100644 --- a/sql/event_scheduler.cc +++ b/sql/event_scheduler.cc @@ -574,6 +574,14 @@ Event_scheduler::execute_top(THD *thd, Event_queue_element_for_exec *event_name) DBUG_PRINT("info", ("Event %s@%s ready for start", event_name->dbname.str, event_name->name.str)); + /* + TODO: should use thread pool here, preferably with an upper limit + on number of threads: if too many events are scheduled for the + same time, starting all of them at once won't help them run truly + in parallel (because of the great amount of synchronization), so + we may as well execute them in sequence, keeping concurrency at a + reasonable level. + */ /* Major failure */ if ((res= pthread_create(&th, &connection_attrib, event_worker_thread, event_name))) |