Re: [squid-users] Squid Restarting

On 14/05/2012 11:03 p.m., Justin Lawler wrote:
> Thanks Amos - we have heap dumps but unfortunately we could not share with the wider community as they're taken from a customer production environment. However, we can send on information taken from the heap dump - like output from pflags/pstack/etc. Would this be sufficient to investigate the issue?

Private data should not be a problem. Initially we just need a backtrace
from the dump to find which function calls led to it, and the two values
in those FD.

Amos

> Thanks and regards,
> Justin
>
> -----Original Message-----
> From: Amos Jeffries
>
> On 4/05/2012 9:59 p.m., Justin Lawler wrote:
>> Hi,
>>
>> We're running squid 3.1.19 - and have seen it restarting from the logs, just after the below error:
>>
>> 2012/04/19 12:12:28| assertion failed: forward.cc:496: "server_fd == fd"
>> 2012/04/19 12:12:59| Starting Squid Cache version 3.1.19 for sparc-sun-solaris2.10...
>>
>> Is this a known issue? any workaround?
> Seems to be new and a bit strange. Squid opens one connection to the server to fetch content sometime later a connection was closed, but not the one which was opened to begin with.
>
> Do you have a core dump or stack trace available to identify what the fd and server_fd values actually were during the crash?
>
>> It's been in production for 6 weeks now, and have only seen it once, but we need to have an answer for the customer. We're worried it'll be more frequently as traffic goes up.
> Being the first report over a month after the release, it would seem to be very rare.
>
> Amos
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Received on Mon May 14 2012 - 12:16:59 MDT