The Python web apps throw 500s

Dagobert Michelsen via buildfarm buildfarm at lists.opencsw.org
Thu Sep 25 14:50:33 CEST 2014


Hi Maciej,

Am 25.09.2014 um 14:20 schrieb Dagobert Michelsen via buildfarm <buildfarm at lists.opencsw.org>:
> Am 25.09.2014 um 12:13 schrieb Maciej (Matchek) Bliziński via buildfarm <buildfarm at lists.opencsw.org>:
>> 11:42 < lblume> automaciej: Is the REST thingie working? I've had troubles since yesterday with checkpkg
>> 11:45 < automaciej> I don't know, I haven't logged in recently
>> 11:45 < automaciej> show your error message
>> 11:46 < automaciej> we had problems in which the web app would stop working, and you had to restart apache to fix it. but I don't know where the problem is exactly.
>> 11:46 < automaciej> s/fix/mitigate/
>> 11:49 < lblume> automaciej: ib.python.rest.RestCommunicationError: http://buildfarm.opencsw.org/releases/blob/elfdump/elib.python.rest.RestCommunicationError: 
>>                 http://buildfarm.opencsw.org/releases/blob/elfdump/eec39f8f198b88684667bd0fe98b56ec/ - HTTP code: 500
>> 12:08 < automaciej> nothing in error_log
>> 12:09 < automaciej> svcadm restart cswapache2; try again
>> 
>> We've seen this in the past too. I can't debug this now, but it's a recurring problem, and we should try to debug this some time. It could be in Apache, or in the web app itself. But I the problem is I don't understand why we're not seeing these errors in error_log.
>> 
>> less /opt/csw/apache2/var/log/buildfarm.opencsw.org-error_log
> 
> There are lots of errors in there:
> [Thu Sep 25 14:05:03 2014] [error] [client 213.178.77.176] OperationalError: Got a packet bigger than 'max_allowed_packet' bytes
> [Thu Sep 25 14:05:03 2014] [error] [client 213.178.77.176] 
> [Thu Sep 25 14:07:46 2014] [info] [client 62.210.215.117] (32)Broken pipe: core_output_filter: writing data to the network

I raised max_allowed_packet from 256M to 512M in the mysql zone, lets see if this makes things better.

Best regards

  — Dago

-- 
"You don't become great by trying to be great, you become great by wanting to do something,
and then doing it so hard that you become great in the process." - xkcd #896

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