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Re: httpd.exe Process Consumes all Spare CPU Cycles

Author markphip (OCN Member)
Full name Mark Phippard
Date 2011-09-29 08:10:37 PDT
Message On 9/29/11 11:06 AM, "Paul Fruia" <XXXX@XXXX> wrote:

> Thanks for the quick response. I will check the access logs, however, this
> happens immediately after restarting the service. It does seem to take a bit
> longer to occur after a system re-boot(perhaps a few minutes), but just
> stopping and re-starting the service doesn't seem to resolve the problem.
>
> I did see the viewvc topic, but we use this very rarely. We almost always use
> an SVN client like TortoiseSVN. Any other idea?

You are using the stock Apache httpd.conf configuration that we write from
SVN Edge? You mentioned trying to add a directive, have you done anything
else?

In terms of taking a few minutes, I would still check the logs. Maybe you
have rogue process like a Continuous Integration server that is constantly
polling the server.

An Apache server does not use any CPU once it has started unless something
is making requests to it. The access logs can help us track down whether:

* There is a single specific request triggering high CPU load
* There is something generating a lot of requests to the server

We have seen cases where build scripts do something like:

$ svn log -r0:HEAD url://server/repos

On a big repository, this request is enormously expensive. Just changing
the request to this:

$ svn log -rHEAD:0 url://server/repos

Can make a massive difference. That is just an example of course.

Mark

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httpd.exe Process Consumes all Spare CPU Cycles pfruia (OCN Member) Paul Fruia 2011-09-29 07:56:46 PDT
     Re: httpd.exe Process Consumes all Spare CPU Cycles markphip (OCN Member) Mark Phippard 2011-09-29 08:01:21 PDT
         RE: Re: httpd.exe Process Consumes all Spare CPU Cycles pfruia (OCN Member) Paul Fruia 2011-09-29 08:06:30 PDT
             Re: httpd.exe Process Consumes all Spare CPU Cycles markphip (OCN Member) Mark Phippard 2011-09-29 08:10:37 PDT
                 RE: Re: httpd.exe Process Consumes all Spare CPU Cycles pfruia (OCN Member) Paul Fruia 2011-09-29 10:01:01 PDT
                     Re: httpd.exe Process Consumes all Spare CPU Cycles markphip (OCN Member) Mark Phippard 2011-09-29 10:03:32 PDT
                         RE: Re: httpd.exe Process Consumes all Spare CPU Cycles pfruia (OCN Member) Paul Fruia 2011-09-29 10:18:01 PDT
                             Re: httpd.exe Process Consumes all Spare CPU Cycles markphip (OCN Member) Mark Phippard 2011-09-29 10:19:44 PDT
                                 Re: httpd.exe Process Consumes all Spare CPU Cycles markphip (OCN Member) Mark Phippard 2011-09-29 10:22:16 PDT
                                     RE: Re: httpd.exe Process Consumes all Spare CPU Cycles pfruia (OCN Member) Paul Fruia 2011-09-29 10:28:59 PDT
                                         Re: httpd.exe Process Consumes all Spare CPU Cycles markphip (OCN Member) Mark Phippard 2011-09-29 10:32:46 PDT
                                             RE: Re: httpd.exe Process Consumes all Spare CPU Cycles pfruia (OCN Member) Paul Fruia 2011-10-05 10:25:06 PDT
                                                 Re: httpd.exe Process Consumes all Spare CPU Cycles markphip (OCN Member) Mark Phippard 2011-10-05 10:48:31 PDT
                                                 RE: Re: httpd.exe Process Consumes all Spare CPU Cycles valentijnscholten (OCN Member) Valentijn Scholten 2012-02-26 10:46:06 PST
                                                     Re: Re: httpd.exe Process Consumes all Spare CPU Cycles pfruia (OCN Member) Paul Fruia 2012-02-27 09:45:08 PST
                                                         Re: httpd.exe Process Consumes all Spare CPU Cycles markphip (OCN Member) Mark Phippard 2012-02-27 09:48:27 PST
                                                             RE: Re: httpd.exe Process Consumes all Spare CPU Cycles valentijnscholten (OCN Member) Valentijn Scholten 2012-03-03 09:39:02 PST
                                             RE: Re: httpd.exe Process Consumes all Spare CPU Cycles pfruia (OCN Member) Paul Fruia 2011-10-05 10:28:33 PDT
                                                 Re: httpd.exe Process Consumes all Spare CPU Cycles markphip (OCN Member) Mark Phippard 2011-10-05 10:53:49 PDT
                                                     RE: Re: httpd.exe Process Consumes all Spare CPU Cycles squarebox (OCN Member) mark hosang 2011-10-06 18:51:48 PDT
                                                         RE: Re: httpd.exe Process Consumes all Spare CPU Cycles squarebox (OCN Member) mark hosang 2011-10-06 18:58:47 PDT
                                                         Re: httpd.exe Process Consumes all Spare CPU Cycles markphip (OCN Member) Mark Phippard 2011-10-06 19:10:16 PDT
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