Re: Database recommendations?

Tom Mornini
Thu, 22 Feb 2007 23:03:54 -0000

On Feb 22, 2007, at 1:13 PM, Paul Butcher wrote:

> Ilan Berci wrote:
>
>> I think your real problem is trying to diagnose why your slave is
>> crashing before you assume that you are running up against the upper
>> limits of MySQL replication.
>
> I''d certainly welcome advice on how to perform this diagnosis.
Part of
> the problem that we have is that MySQL provides us with almost no help
> whatsoever in diagnosing the problem.
>
> We know what was the last statement which went through before the
> crash,
> but it''s "just a query". As far as we can tell, the
problem is that
> the
> master and the slave got "out of whack" at some point in the past
(and
> we have no means to tell when this point was). The point of failure is
> some stage after that when an otherwise entirely innocuous query runs.

Are we talking crash as in "boom" or crash as in halted replication?

If "boom", process boom or OS boom?

--
-- Tom Mornini, CTO
-- Engine Yard, Ruby on Rails Hosting
-- Reliability, Ease of Use, Scalability
-- (866) 518-YARD (9273)