maria-discuss team mailing list archive
Mailing list archive
Re: Frequently running Event overlapping itself
On Aug 16, Brian Evans wrote:
> I have an issue where a fast triggering event, running every 30 seconds,
> is occasionally running multiple times without each finishing.
> This is causing duplicate data as things are marked done one at a time.
> I am trying to figure a solution such that this event can only run
> singly, but what is the best way?
> DISABLE at start and ENABLE at end?
That would work, I suppose.
Alternatively you can use GET_LOCK to synchronize events.
> Do SESSION variables work between event invocations?
I'm not sure I understand this. You mean user variables, like @foo?
No, every invocation is executed as in a new connection (kind of, not
really a new connection) and user variables dissapear at disconnect.