2010/1/8 qrilka <[email protected]>: > From VirtualHost specific log: > ------------------------ > [Thu Jan 07 21:09:49 2010] [info] mod_wsgi (pid=12366): Maximum > requests reached 'av_factory'. > [Thu Jan 07 21:09:49 2010] [info] mod_wsgi (pid=12366): Shutdown > requested 'av_factory'. > [Thu Jan 07 21:09:54 2010] [info] mod_wsgi (pid=12366): Aborting > process 'av_factory'.
This line indicates that what I described previously is occurring and is likely the cause. That is, when reaching maximum-requests, there are long running requests or stuck requests that don't complete within the default 5 second window for shutting down a daemon process. When that occurs, even though still running the process is forcibly exited, even without shutting down Python interpreter properly. As a result, the Apache server child process which is proxying that specific request to the mod_wsgi daemon mode process sees the connection to daemon process abruptly cut off and as such you may see errors about premature end of script headers or the various filter errors or broken pipe messages depending on where a request was up to. Do you have any idea about whether you legitimately have requests that take longer than 5 seconds to process? For what reason are you using maximum-requests in the first place? If you don't have to use that option for some reason, the issue should be avoided. Graham > [Thu Jan 07 21:09:54 2010] [info] mod_wsgi (pid=28423): Attach > interpreter ''. > [Thu Jan 07 21:09:54 2010] [info] mod_wsgi (pid=28423): Enable monitor > thread in process 'av_factory'. > [Thu Jan 07 21:09:54 2010] [info] mod_wsgi (pid=28423): Enable > deadlock thread in process 'av_factory'. > [Thu Jan 07 21:09:54 2010] [info] [client 188.113.58.162] mod_wsgi > (pid=28423, process='av_factory', application=''): Loading WSGI script > '/var/vhosts/avaste > p.ru/avatar_factory/apache/factory.wsgi'. > [Thu Jan 07 21:10:05 2010] [error] [client 94.181.240.3] (104) > Соединение сброшено другой стороной: mod_wsgi (pid=27832): Unable to > get bucket brigade for req > uest., referer: http://www.avastep.ru/ > [Thu Jan 07 21:10:06 2010] [error] [client 94.181.240.3] mod_wsgi > (pid=28423): Exception occurred processing WSGI script '/var/vhosts/ > avastep.ru/avatar_facto > ry/apache/factory.wsgi'. > [Thu Jan 07 21:10:06 2010] [error] [client 94.181.240.3] IOError: > client connection closed > [Thu Jan 07 21:10:08 2010] [error] [client 92.39.71.47] (70007)The > timeout specified has expired: mod_wsgi (pid=25597): Unable to get > bucket brigade for requ > est., referer: http://www.avastep.ru/ > [Thu Jan 07 21:10:16 2010] [error] [client 91.76.128.137] (70007)The > timeout specified has expired: mod_wsgi (pid=25627): Unable to get > bucket brigade for re > quest., referer: http://www.avastep.ru/ > [Thu Jan 07 21:10:24 2010] [error] [client 109.187.113.64] Premature > end of script headers: factory.wsgi, referer: http://www.avastep.ru/ > [Thu Jan 07 21:11:04 2010] [error] [client 94.248.42.230] Premature > end of script headers: factory.wsgi, referer: http://avastep.ru/ > ------------------------ > > Main Apache error log at the same time: > > ------------------------ > [Thu Jan 07 21:09:49 2010] [info] mod_wsgi (pid=26071): Cleanup > interpreter ''. > [Thu Jan 07 21:09:49 2010] [info] mod_wsgi (pid=26071): Terminating > Python. > [Thu Jan 07 21:09:50 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:09:50 2010] [info] mod_wsgi (pid=28083): Cleanup > interpreter ''. > [Thu Jan 07 21:09:50 2010] [info] mod_wsgi (pid=28083): Terminating > Python. > [Thu Jan 07 21:09:51 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:09:51 2010] [info] mod_wsgi (pid=28066): Cleanup > interpreter ''. > [Thu Jan 07 21:09:51 2010] [info] mod_wsgi (pid=28066): Terminating > Python. > [Thu Jan 07 21:09:51 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:09:52 2010] [info] [client 89.222.228.40] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:09:52 2010] [info] [client 89.222.228.40] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:09:52 2010] [info] [client 89.222.228.40] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:09:52 2010] [info] [client 89.222.228.40] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:09:52 2010] [info] mod_wsgi (pid=26755): Cleanup > interpreter ''. > [Thu Jan 07 21:09:52 2010] [info] mod_wsgi (pid=26755): Terminating > Python. > [Thu Jan 07 21:09:53 2010] [info] [client ::1] (32)Broken pipe: > core_output_filter: writing data to the network > [Thu Jan 07 21:09:53 2010] [info] mod_wsgi (pid=26523): Cleanup > interpreter ''. > [Thu Jan 07 21:09:53 2010] [info] mod_wsgi (pid=26523): Terminating > Python. > [Thu Jan 07 21:09:53 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:09:54 2010] [info] mod_wsgi (pid=12366): Process > 'av_factory' has died, restarting. > [Thu Jan 07 21:09:54 2010] [info] mod_wsgi (pid=28423): Starting > process 'av_factory' with uid=504, gid=48 and threads=15. > [Thu Jan 07 21:09:54 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:09:54 2010] [info] mod_wsgi (pid=28110): Cleanup > interpreter ''. > [Thu Jan 07 21:09:55 2010] [info] mod_wsgi (pid=28110): Terminating > Python. > [Thu Jan 07 21:09:55 2010] [info] [client 83.149.10.135] (104) > Соединение сброшено другой стороной: core_output_filter: writing data > to the network > [Thu Jan 07 21:09:57 2010] [info] [client 109.184.199.22] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:09:57 2010] [info] [client 109.184.199.22] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:09:58 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:09:58 2010] [info] mod_wsgi (pid=28498): Attach > interpreter ''. > [Thu Jan 07 21:09:59 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:09:59 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:09:59 2010] [info] [client 109.184.199.22] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:10:01 2010] [info] [client 78.36.103.252] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:02 2010] [info] mod_wsgi (pid=28103): Cleanup > interpreter ''. > [Thu Jan 07 21:10:02 2010] [info] mod_wsgi (pid=28103): Terminating > Python. > [Thu Jan 07 21:10:02 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:04 2010] [info] [client 109.184.199.22] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:10:05 2010] [info] mod_wsgi (pid=28564): Attach > interpreter ''. > [Thu Jan 07 21:10:05 2010] [info] [client 94.181.240.3] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:05 2010] [info] [client 94.181.240.3] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:06 2010] [info] [client 188.187.12.88] (70007)The > timeout specified has expired: core_output_filter: writing data to the > network > [Thu Jan 07 21:10:06 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:07 2010] [info] [client 79.165.120.17] (70007)The > timeout specified has expired: core_output_filter: writing data to the > network > [Thu Jan 07 21:10:07 2010] [info] mod_wsgi (pid=28579): Attach > interpreter ''. > [Thu Jan 07 21:10:08 2010] [info] [client 85.249.160.62] (70014)End of > file found: core_output_filter: writing data to the network > [Thu Jan 07 21:10:10 2010] [info] mod_wsgi (pid=28086): Cleanup > interpreter ''. > [Thu Jan 07 21:10:10 2010] [info] mod_wsgi (pid=28086): Terminating > Python. > [Thu Jan 07 21:10:11 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:11 2010] [info] mod_wsgi (pid=27794): Cleanup > interpreter ''. > [Thu Jan 07 21:10:11 2010] [info] mod_wsgi (pid=27794): Terminating > Python. > [Thu Jan 07 21:10:12 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:12 2010] [info] mod_wsgi (pid=26757): Cleanup > interpreter ''. > [Thu Jan 07 21:10:12 2010] [info] mod_wsgi (pid=26757): Terminating > Python. > [Thu Jan 07 21:10:13 2010] [info] [client ::1] (32)Broken pipe: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:13 2010] [info] [client 109.184.199.22] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:10:13 2010] [info] mod_wsgi (pid=27968): Cleanup > interpreter ''. > [Thu Jan 07 21:10:13 2010] [info] mod_wsgi (pid=27968): Terminating > Python. > [Thu Jan 07 21:10:14 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:14 2010] [info] [client 109.184.199.22] (104) > Соединение сброшено другой стороной: core_output_filter: writing data > to the network > [Thu Jan 07 21:10:14 2010] [info] mod_wsgi (pid=27814): Cleanup > interpreter ''. > [Thu Jan 07 21:10:14 2010] [info] mod_wsgi (pid=27814): Terminating > Python. > [Thu Jan 07 21:10:14 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:14 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:15 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:15 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:15 2010] [info] mod_wsgi (pid=26703): Cleanup > interpreter ''. > [Thu Jan 07 21:10:15 2010] [info] mod_wsgi (pid=26703): Terminating > Python. > [Thu Jan 07 21:10:15 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:16 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:16 2010] [info] mod_wsgi (pid=27458): Cleanup > interpreter ''. > [Thu Jan 07 21:10:16 2010] [info] mod_wsgi (pid=27458): Terminating > Python. > [Thu Jan 07 21:10:16 2010] [info] [client 109.184.199.22] (104) > Соединение сброшено другой стороной: core_output_filter: writing data > to the network > [Thu Jan 07 21:10:17 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:17 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:18 2010] [info] [client 109.184.199.22] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:10:18 2010] [info] mod_wsgi (pid=28678): Attach > interpreter ''. > [Thu Jan 07 21:10:19 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:21 2010] [info] mod_wsgi (pid=28705): Attach > interpreter ''. > [Thu Jan 07 21:10:22 2010] [info] mod_wsgi (pid=28710): Attach > interpreter ''. > [Thu Jan 07 21:10:22 2010] [info] mod_wsgi (pid=28711): Attach > interpreter ''. > [Thu Jan 07 21:10:22 2010] [info] [client 109.184.199.22] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:10:23 2010] [info] mod_wsgi (pid=28725): Attach > interpreter ''. > [Thu Jan 07 21:10:23 2010] [info] mod_wsgi (pid=28726): Attach > interpreter ''. > [Thu Jan 07 21:10:23 2010] [info] mod_wsgi (pid=28727): Attach > interpreter ''. > [Thu Jan 07 21:10:23 2010] [info] mod_wsgi (pid=28728): Attach > interpreter ''. > [Thu Jan 07 21:10:23 2010] [info] [client 217.66.22.68] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:23 2010] [info] [client 217.66.22.68] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:24 2010] [info] [client 217.66.22.68] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:10:26 2010] [info] [client 94.241.48.58] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:10:26 2010] [info] [client 94.241.48.58] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:10:26 2010] [info] [client 94.241.48.58] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:27 2010] [info] [client 94.241.48.58] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:27 2010] [info] [client 94.241.48.58] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:27 2010] [info] mod_wsgi (pid=27512): Cleanup > interpreter ''. > [Thu Jan 07 21:10:27 2010] [info] mod_wsgi (pid=27512): Terminating > Python. > [Thu Jan 07 21:10:28 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:30 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:30 2010] [info] mod_wsgi (pid=28105): Cleanup > interpreter ''. > [Thu Jan 07 21:10:30 2010] [info] mod_wsgi (pid=28105): Terminating > Python. > [Thu Jan 07 21:10:31 2010] [info] [client ::1] (32)Broken pipe: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:31 2010] [info] [client 92.245.50.110] (70007)The > timeout specified has expired: core_output_filter: writing data to the > network > [Thu Jan 07 21:10:31 2010] [info] [client 92.245.50.110] (70007)The > timeout specified has expired: core_output_filter: writing data to the > network > [Thu Jan 07 21:10:31 2010] [info] mod_wsgi (pid=28054): Cleanup > interpreter ''. > [Thu Jan 07 21:10:31 2010] [info] mod_wsgi (pid=28054): Terminating > Python. > [Thu Jan 07 21:10:32 2010] [info] [client ::1] (32)Broken pipe: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:32 2010] [info] mod_wsgi (pid=25627): Cleanup > interpreter ''. > [Thu Jan 07 21:10:32 2010] [info] mod_wsgi (pid=25627): Terminating > Python. > [Thu Jan 07 21:10:33 2010] [info] [client ::1] (32)Broken pipe: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:33 2010] [info] mod_wsgi (pid=28678): Cleanup > interpreter ''. > [Thu Jan 07 21:10:33 2010] [info] mod_wsgi (pid=28678): Terminating > Python. > [Thu Jan 07 21:10:34 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:34 2010] [info] mod_wsgi (pid=27844): Cleanup > interpreter ''. > [Thu Jan 07 21:10:34 2010] [info] mod_wsgi (pid=27844): Terminating > Python. > [Thu Jan 07 21:10:35 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:35 2010] [info] mod_wsgi (pid=28818): Attach > interpreter ''. > [Thu Jan 07 21:10:39 2010] [info] mod_wsgi (pid=28099): Cleanup > interpreter ''. > [Thu Jan 07 21:10:39 2010] [info] mod_wsgi (pid=28099): Terminating > Python. > [Thu Jan 07 21:10:40 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:40 2010] [info] [client 109.184.199.22] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:10:41 2010] [info] mod_wsgi (pid=28097): Cleanup > interpreter ''. > [Thu Jan 07 21:10:41 2010] [info] mod_wsgi (pid=28097): Terminating > Python. > [Thu Jan 07 21:10:42 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:42 2010] [info] mod_wsgi (pid=28078): Cleanup > interpreter ''. > [Thu Jan 07 21:10:42 2010] [info] mod_wsgi (pid=28078): Terminating > Python. > [Thu Jan 07 21:10:43 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:43 2010] [info] mod_wsgi (pid=27996): Cleanup > interpreter ''. > [Thu Jan 07 21:10:43 2010] [info] mod_wsgi (pid=27996): Terminating > Python. > [Thu Jan 07 21:10:44 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:45 2010] [info] mod_wsgi (pid=28108): Cleanup > interpreter ''. > [Thu Jan 07 21:10:45 2010] [info] mod_wsgi (pid=28108): Terminating > Python. > [Thu Jan 07 21:10:45 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:45 2010] [info] mod_wsgi (pid=26088): Cleanup > interpreter ''. > [Thu Jan 07 21:10:45 2010] [info] mod_wsgi (pid=26088): Terminating > Python. > [Thu Jan 07 21:10:46 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:46 2010] [info] mod_wsgi (pid=27979): Cleanup > interpreter ''. > [Thu Jan 07 21:10:46 2010] [info] mod_wsgi (pid=27979): Terminating > Python. > [Thu Jan 07 21:10:47 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:49 2010] [info] mod_wsgi (pid=28935): Attach > interpreter ''. > [Thu Jan 07 21:10:50 2010] [info] mod_wsgi (pid=28947): Attach > interpreter ''. > [Thu Jan 07 21:10:50 2010] [info] mod_wsgi (pid=28948): Attach > interpreter ''. > [Thu Jan 07 21:10:51 2010] [info] mod_wsgi (pid=28498): Cleanup > interpreter ''. > [Thu Jan 07 21:10:51 2010] [info] mod_wsgi (pid=28498): Terminating > Python. > [Thu Jan 07 21:10:52 2010] [info] [client ::1] (32)Broken pipe: > core_output_filter: writing data to the network > > [Thu Jan 07 21:10:52 2010] [info] mod_wsgi (pid=27832): Cleanup > interpreter ''. > [Thu Jan 07 21:10:52 2010] [info] mod_wsgi (pid=27832): Terminating > Python. > [Thu Jan 07 21:10:53 2010] [info] [client ::1] (32)Broken pipe: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:55 2010] [info] mod_wsgi (pid=22658): Cleanup > interpreter ''. > [Thu Jan 07 21:10:55 2010] [info] mod_wsgi (pid=22658): Terminating > Python. > [Thu Jan 07 21:10:56 2010] [info] [client ::1] (32)Broken pipe: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:56 2010] [info] [client 109.184.199.22] (104) > Connection reset by peer: core_output_filter: writing data to the > network > [Thu Jan 07 21:10:56 2010] [info] [client 109.184.199.22] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:10:56 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:10:57 2010] [info] mod_wsgi (pid=27830): Cleanup > interpreter ''. > [Thu Jan 07 21:10:57 2010] [info] mod_wsgi (pid=27830): Terminating > Python. > [Thu Jan 07 21:10:58 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:10:58 2010] [info] mod_wsgi (pid=29013): Attach > interpreter ''. > [Thu Jan 07 21:10:59 2010] [info] [client 109.184.199.22] (70007)The > timeout specified has expired: core_output_filter: writing data to the > network > [Thu Jan 07 21:11:00 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:11:00 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:11:01 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:11:01 2010] [info] mod_wsgi (pid=28067): Cleanup > interpreter ''. > [Thu Jan 07 21:11:01 2010] [info] mod_wsgi (pid=28067): Terminating > Python. > [Thu Jan 07 21:11:02 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:11:02 2010] [info] mod_wsgi (pid=26744): Cleanup > interpreter ''. > [Thu Jan 07 21:11:02 2010] [info] mod_wsgi (pid=26744): Terminating > Python. > [Thu Jan 07 21:11:03 2010] [info] [client ::1] (32)Обрыв канала: > core_output_filter: writing data to the network > [Thu Jan 07 21:11:04 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:11:04 2010] [info] mod_wsgi (pid=29067): Attach > interpreter ''. > [Thu Jan 07 21:11:04 2010] [info] [client 109.184.199.22] (32)Broken > pipe: core_output_filter: writing data to the network > [Thu Jan 07 21:11:04 2010] [info] [client 109.184.199.22] (32)Обрыв > канала: core_output_filter: writing data to the network > [Thu Jan 07 21:11:08 2010] [info] mod_wsgi (pid=28726): Cleanup > interpreter ''. > [Thu Jan 07 21:11:08 2010] [info] mod_wsgi (pid=28726): Terminating > Python. > ------------------------------- > Обрыв канала == Broken pipe (but in Russian) > > I do not see any other problems here except broken pipes. > > On Jan 7, 2:59 pm, Graham Dumpleton <[email protected]> > wrote: >> 2010/1/7 qrilka <[email protected]>: >> >> > I have tried to set logging to info bu could not find anything >> > meaningful. >> > I will try to get error log later to post it here (maybe I missed >> > something). >> >> I am interested in the proximity of any messages indicating that >> daemon mode process are being restarted. >> >> If running VirtualHost specific error logs, you may also have to look >> in main Apache error log, specially if using mod_wsgi 2.8 and not >> mod_wsgi 3.1. >> >> Graham >> >> > Best regards, >> > Kirill Zaborsky >> >> > On Jan 7, 1:20 pm, Graham Dumpleton <[email protected]> >> > wrote: >> >> 2010/1/7 qrilka <[email protected]>: >> >> >> > Hello, >> >> > I have read quite a lot of discussions about problems leading to >> >> > 'PReamature end of script headers' line in apache log but I still can >> >> > not find a way to resolve it completely. >> >> > On avastep.ru we have a Django app (main functionality done with PIL). >> >> > Site works OK but from time to time I get a line in error log like: >> >> > --- >> >> > [Wed Jan 06 21:15:16 2010] [error] [client 85.175.67.142] Premature >> >> > end of script headers: factory.wsgi, referer:http://www.avastep.ru/ >> >> > --- >> >> > and it appears that some of site users have problems. >> >> > I could not find any way to reproduce this problem otherwise than on >> >> > that working server. >> >> >> > httpd.conf for the site -http://dpaste.com/141757/ >> >> > Software installed: CentOS release 5.2 (Final), Python 2.4.3, mod_wsgi >> >> > 2.8 (fromhttp://codepoint.net/attachments/mod_wsgi/) >> >> >> > Is there any way to diagnose what is wrong with server configuration >> >> > and how could it be fixed? >> >> >> Set: >> >> >> LogLevel info >> >> >> in Apache configuration. >> >> >> If the messages coincides with mod_wsgi daemon mode process restarts, >> >> it may be because there are active long running requests at time when >> >> 'maximum-requests=50000' option of WSGIDaemonProcess is triggered. >> >> These may also be stuck requests. >> >> >> This could occur because when that process recycling is triggered, it >> >> will only wait so long, default 5 seconds, for any other active >> >> requests handled by the process to complete. If they don't complete >> >> the process is forcibly killed off. This killing off of the process >> >> would result in Apache server child process proxying the request >> >> seeing connection close and thus a premature end of the headers being >> >> returned by mod_wsgi daemon process. >> >> >> I realise the message is a bit confusing, but so happen to be using a >> >> bit of existing Apache code normally used when dealing with CGI >> >> scripts. Thus the message is actually same message as can get when CGI >> >> scripts don't return headers even though is a WSGI script handled by >> >> mod_wsgi. >> >> >> So, do you have long running requests which would take a long time >> >> before they generate the headers for the response? >> >> >> Graham >> >> > -- >> > You received this message because you are subscribed to the Google Groups >> > "modwsgi" group. >> > To post to this group, send email to [email protected]. >> > To unsubscribe from this group, send email to >> > [email protected]. >> > For more options, visit this group >> > athttp://groups.google.com/group/modwsgi?hl=en. >> >> > > -- > You received this message because you are subscribed to the Google Groups > "modwsgi" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/modwsgi?hl=en. > > > >
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