[knowledgeforge-user] maintenance work

Mon May 4 17:28:02 UTC 2009

2009/5/3 Mark Longair <mark-knowledgeforge at mythic-beasts.com>:
> Rufus Pollock <rufus.pollock at okfn.org> wrote:
>>
>> 2009/4/20 Mark Longair <mark-knowledgeforge at mythic-beasts.com>:
[snip]
>>> Unfortunately, I still find that the connection is lost during
>>> "git svn" updates, sometimes after it has been running for for
>>> half an hour, sometimes up to an hour.  What are Apache's
>>> timeout and keepalive timeout settings set to?
>>
>> KeepAlive On
>> Timeout 300
>> MaxKeepAliveRequests 500
>> KeepAliveTimeout 5
>
> Hm.  I suppose that KeepAliveTimeout could be a bit higher, but
> it seems to me that it's a bit unlikely to be the problem given
> the symptoms I'm seeing - I've noticed that when I get a
> connection reset it becomes impossible to connect to port 80 of
> project.knowledgeforge.net for a couple of minutes afterwards,
> either from JANET or from my home ADSL connection.
>
> So that you have a time point to find in the logs when this
> definitely happened, I set "git svn clone --stdlayout
> http://knowledgeforge.net/ukparse/svn/" going earlier from the
> client 129.215.197.50 and got the connection reset by peer error [1]
> at:
>
>  Sun May  3 12:57:40 BST 2009
>
> I could connect to port 80 again at 13:01, but there were a
> couple of minutes before that wwhere every connection attempt
> from each network I tried failed.

Monit reboots apache when system overloads and this is what seems to
be happening here.

My "guess" (from experience) is that because this is "graceful" it can
be slow since it waits for existing connections to die/time-out and
this may explain the long period

> I hope this is of some help in tracking down the problem.

Will see what we can do :)

[snip]

Rufus