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From "D'Arcy J.M. Cain" <da...@Vex.Net>
Subject Re: [users@httpd] One page hanging entire server
Date Tue, 10 May 2016 11:55:27 GMT
On Tue, 10 May 2016 10:03:53 +0100
James Smith <js5@sanger.ac.uk> wrote:
> Setting up apache server-status module is always a good idea - as you 
> can (try) and see the information about load/requests etc.

I have set it up but it doesn't help if Apache isn't serving pages.

> wp-cron.php is a wrapper script around a whole system of potentially 
> complex functions which maintain the database (garbage collect etc)
> it depends on what modules you have enabled how this is effecting the
> rest of the server.
> 
> If it is locking every word press script you may find that every
> apache child eventually handles a word press request (99 after the
> cron job locked wordpress) and so there are no free apache children
> to handle requests for static content...

That seems to be the problem.  And, you may have suggested a way to
check what's running.  When everything locks up I can't see the status
page and if I kill the problem process I can't see what it was but I
guess I can kill a couple of other sites and that may allow the status
page to run.  If it happens again I will try that.

I say "if" because I am trying something and so far it seems to be
working.  I realized that this was a recent problem and that I recently
upgraded to 2.4.20.  I reverted to 2.4.18 last night and so far so
good.  I will report after a few days or sooner if it happens again.

-- 
D'Arcy J.M. Cain
System Administrator, Vex.Net
http://www.Vex.Net/ IM:darcy@Vex.Net
VoIP: sip:darcy@Vex.Net

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