[Twisted-Python] Epoll error after upgrading from 10.0 to 12.3

exarkun at twistedmatrix.com exarkun at twistedmatrix.com
Sun Mar 3 21:37:29 EST 2013

On 02:00 am, matusis at yahoo.com wrote:
>>If you don't find a ticket for the bug, you should report it.  Please 
>sure to include enough information to reproduce the issue if you file a 
>ticket (or as much information as you have, at least).
>I filed http://twistedmatrix.com/trac/ticket/6346
>It's hard to do any detailed analysis on a live production system, so I 
>not know how to reliably reproduce it, except that it spontaneously 
>on two more additional servers last night. strace looks more or less 
>same as on a normal server, but given the volume each server has 100s
>connections per second) it's hard to parse strace output. I now believe 
>after the first error occurs the server remains overall functional and 
>accepts new connections, but a growing number of existing connections
>becomes affected, and the logs become flooded with this error.
>Since this is a production system I have to revert to 10.0.0 now.

Do you have or can you set up any kind of staging system and run a 
synthetic load against it?


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