Re: [PHP] APC problem with PHP
Hmm, I'll try taking down the optimizer and seeing if it segfaults or not. If that's what it is it's a crying shame that apc and zend_optimizer can't get along. maybe give eaccelerator a shot, i believe theyve got an optimizer in there. im not sure how it stacks up to zend's, but it will do both caching and optimization, afaik. also, you will find a not yet stable optimization extension haging out in pecl for apc, http://pecl.php.net/package/optimizer -nathan I'd recommend using X-Cache. I've had nothing but good experiences with it. i would also recommend x-cache. it's incredibly fast and stable. i could also cache data on memory with it. have used it on high traffic sites with no problem ever since. Virgil http://www.jampmark.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] APC problem with PHP
On Tue, Feb 10, 2009 at 10:11 PM, Nathan Nobbe quickshif...@gmail.comwrote: On Tue, Feb 10, 2009 at 5:53 PM, Jamie Krasnoo jkras...@gmail.com wrote: Hmm, I'll try taking down the optimizer and seeing if it segfaults or not. If that's what it is it's a crying shame that apc and zend_optimizer can't get along. maybe give eaccelerator a shot, i believe theyve got an optimizer in there. im not sure how it stacks up to zend's, but it will do both caching and optimization, afaik. also, you will find a not yet stable optimization extension haging out in pecl for apc, http://pecl.php.net/package/optimizer -nathan I'd recommend using X-Cache. I've had nothing but good experiences with it.
[PHP] APC problem with PHP
Hey all, I'm new to the list. I came here because I couldn't find the answer to my question and I'm hoping I can find it here. I compiled the APC plugin as a shared library and activated it through the php.ini. I ran 'make test' and it seemed to pass all but one (it skipped a test). I thought all was well. Unfortunately it wasn't. In the middle of the night I woke up to SMS messages from the monitoring that the server was going down hard. I got the server back up and found that PHP was segfaulting and puking core files everywhere and it filled up the drive. I removed all the core files and restarted the server and it happened again. So I removed APC, restarted the server and the core files stopped. So just to make sure I put APC back on and saw that PHP started dumping again. I'm not advanced enough to try and debug the core files but I do know enough to try and see what is going on. I used gdb to peer in to a core file and saw that libthread_db.1.so or something like that was the culprit. Does anyone know what would cause PHP to start segfaulting after APC was installed? Thanks, Jamie -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] APC problem with PHP
On Tue, Feb 10, 2009 at 4:10 PM, Jamie Krasnoo jkras...@gmail.com wrote: Hey all, I'm new to the list. I came here because I couldn't find the answer to my question and I'm hoping I can find it here. I compiled the APC plugin as a shared library and activated it through the php.ini. I ran 'make test' and it seemed to pass all but one (it skipped a test). I thought all was well. Unfortunately it wasn't. In the middle of the night I woke up to SMS messages from the monitoring that the server was going down hard. I got the server back up and found that PHP was segfaulting and puking core files everywhere and it filled up the drive. I removed all the core files and restarted the server and it happened again. So I removed APC, restarted the server and the core files stopped. So just to make sure I put APC back on and saw that PHP started dumping again. I'm not advanced enough to try and debug the core files but I do know enough to try and see what is going on. I used gdb to peer in to a core file and saw that libthread_db.1.so or something like that was the culprit. Does anyone know what would cause PHP to start segfaulting after APC was installed? are you using apache and if so, do you have threading enabled? -nathan
Re: [PHP] APC problem with PHP
Yes, I'm using Apache 2.2.11 and I do believe that threading could be enabled. Apache was compiled through cPanel with Easy::Apache. I didn't see any options to disable threading unless I missed it. Jamie On Tue, Feb 10, 2009 at 3:51 PM, Nathan Nobbe quickshif...@gmail.com wrote: On Tue, Feb 10, 2009 at 4:10 PM, Jamie Krasnoo jkras...@gmail.com wrote: Hey all, I'm new to the list. I came here because I couldn't find the answer to my question and I'm hoping I can find it here. I compiled the APC plugin as a shared library and activated it through the php.ini. I ran 'make test' and it seemed to pass all but one (it skipped a test). I thought all was well. Unfortunately it wasn't. In the middle of the night I woke up to SMS messages from the monitoring that the server was going down hard. I got the server back up and found that PHP was segfaulting and puking core files everywhere and it filled up the drive. I removed all the core files and restarted the server and it happened again. So I removed APC, restarted the server and the core files stopped. So just to make sure I put APC back on and saw that PHP started dumping again. I'm not advanced enough to try and debug the core files but I do know enough to try and see what is going on. I used gdb to peer in to a core file and saw that libthread_db.1.so or something like that was the culprit. Does anyone know what would cause PHP to start segfaulting after APC was installed? are you using apache and if so, do you have threading enabled? -nathan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] APC problem with PHP
On Tue, Feb 10, 2009 at 5:03 PM, Jamie Krasnoo jkras...@gmail.com wrote: Yes, I'm using Apache 2.2.11 and I do believe that threading could be enabled. Apache was compiled through cPanel with Easy::Apache. I didn't see any options to disable threading unless I missed it. a lot of php extensions are not thread safe, perhaps apc is one of them. most people compile apache w/ mpm_prefork rather than mpm_worker for this reason. i know next to nothing about cPanel, thankfully, but youll likely have to compile php w/ mpm_prefork in order to keep apc from melting down the engine :) -nathan
Re: [PHP] APC problem with PHP
I did compile Apache with mpm_prefork though. cPanel does have the option to compile with all three mpm choices. What else would there be in Apache that could be using threads? Oh, I failed to mention that the PHP scripts that are segfaulting are scripts that exist and haven't been changed for some time. They already exist and are not using APC at all. As soon as APC is taken off they stop segfauting. Jamie On Tue, Feb 10, 2009 at 4:10 PM, Nathan Nobbe quickshif...@gmail.com wrote: On Tue, Feb 10, 2009 at 5:03 PM, Jamie Krasnoo jkras...@gmail.com wrote: Yes, I'm using Apache 2.2.11 and I do believe that threading could be enabled. Apache was compiled through cPanel with Easy::Apache. I didn't see any options to disable threading unless I missed it. a lot of php extensions are not thread safe, perhaps apc is one of them. most people compile apache w/ mpm_prefork rather than mpm_worker for this reason. i know next to nothing about cPanel, thankfully, but youll likely have to compile php w/ mpm_prefork in order to keep apc from melting down the engine :) -nathan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] APC problem with PHP
On Tue, Feb 10, 2009 at 5:19 PM, Jamie Krasnoo jkras...@gmail.com wrote: I did compile Apache with mpm_prefork though. hmm, i doubt thats the problem then. maybe another module not playing nice w/ apc, xdebug perhaps (just guessing now)? have you tried other caching solutions like eaccelerator to see if you encounter the same issue? -nathan
Re: [PHP] APC problem with PHP
Here's the modules I do have running: extension=suhosin.so extension=ffmpeg.so extension=imagick.so extension=magickwand.so extension=memcache.so extension=pdo.so extension=pdo_sqlite.so extension=sqlite.so extension=pdo_mysql.so [Zend] zend_extension_manager.optimizer=/usr/local/Zend/lib/Optimizer-3.3.3 zend_extension_manager.optimizer_ts=/usr/local/Zend/lib/Optimizer_TS-3.3.3 zend_optimizer.version=3.3.3 zend_extension=/usr/local/Zend/lib/ZendExtensionManager.so zend_extension_ts=/usr/local/Zend/lib/ZendExtensionManager_TS.so Does APC not play nice with any of these? Jamie On Tue, Feb 10, 2009 at 4:25 PM, Nathan Nobbe quickshif...@gmail.com wrote: On Tue, Feb 10, 2009 at 5:19 PM, Jamie Krasnoo jkras...@gmail.com wrote: I did compile Apache with mpm_prefork though. hmm, i doubt thats the problem then. maybe another module not playing nice w/ apc, xdebug perhaps (just guessing now)? have you tried other caching solutions like eaccelerator to see if you encounter the same issue? -nathan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] APC problem with PHP
On Tue, Feb 10, 2009 at 5:34 PM, Jamie Krasnoo jkras...@gmail.com wrote: Here's the modules I do have running: extension=suhosin.so extension=ffmpeg.so extension=imagick.so extension=magickwand.so extension=memcache.so extension=pdo.so extension=pdo_sqlite.so extension=sqlite.so extension=pdo_mysql.so [Zend] zend_extension_manager.optimizer=/usr/local/Zend/lib/Optimizer-3.3.3 zend_extension_manager.optimizer_ts=/usr/local/Zend/lib/Optimizer_TS-3.3.3 zend_optimizer.version=3.3.3 zend_extension=/usr/local/Zend/lib/ZendExtensionManager.so zend_extension_ts=/usr/local/Zend/lib/ZendExtensionManager_TS.so Does APC not play nice with any of these? if i were to guess, those zend_optimizer ones, or less likely, suhosin. afaik, zend_optimizer and apc arent buddies, http://www.webdeveloper.com/forum/showthread.php?t=178217 -nathan
Re: [PHP] APC problem with PHP
Hmm, I'll try taking down the optimizer and seeing if it segfaults or not. If that's what it is it's a crying shame that apc and zend_optimizer can't get along. On Tue, Feb 10, 2009 at 4:46 PM, Nathan Nobbe quickshif...@gmail.com wrote: On Tue, Feb 10, 2009 at 5:34 PM, Jamie Krasnoo jkras...@gmail.com wrote: Here's the modules I do have running: extension=suhosin.so extension=ffmpeg.so extension=imagick.so extension=magickwand.so extension=memcache.so extension=pdo.so extension=pdo_sqlite.so extension=sqlite.so extension=pdo_mysql.so [Zend] zend_extension_manager.optimizer=/usr/local/Zend/lib/Optimizer-3.3.3 zend_extension_manager.optimizer_ts=/usr/local/Zend/lib/Optimizer_TS-3.3.3 zend_optimizer.version=3.3.3 zend_extension=/usr/local/Zend/lib/ZendExtensionManager.so zend_extension_ts=/usr/local/Zend/lib/ZendExtensionManager_TS.so Does APC not play nice with any of these? if i were to guess, those zend_optimizer ones, or less likely, suhosin. afaik, zend_optimizer and apc arent buddies, http://www.webdeveloper.com/forum/showthread.php?t=178217 -nathan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] APC problem with PHP
Ok, so I removed zend_optimizer and activated apc. Guess what ... no cores produced. So it is zend_optimizer. I searched around the archives and there seems to be a consensus that it really doesn't do much or maybe even not anything at all. So it's gone. I would have started seeing core files all over the place if it had been something else. Jamie On Tue, Feb 10, 2009 at 4:53 PM, Jamie Krasnoo jkras...@gmail.com wrote: Hmm, I'll try taking down the optimizer and seeing if it segfaults or not. If that's what it is it's a crying shame that apc and zend_optimizer can't get along. On Tue, Feb 10, 2009 at 4:46 PM, Nathan Nobbe quickshif...@gmail.com wrote: On Tue, Feb 10, 2009 at 5:34 PM, Jamie Krasnoo jkras...@gmail.com wrote: Here's the modules I do have running: extension=suhosin.so extension=ffmpeg.so extension=imagick.so extension=magickwand.so extension=memcache.so extension=pdo.so extension=pdo_sqlite.so extension=sqlite.so extension=pdo_mysql.so [Zend] zend_extension_manager.optimizer=/usr/local/Zend/lib/Optimizer-3.3.3 zend_extension_manager.optimizer_ts=/usr/local/Zend/lib/Optimizer_TS-3.3.3 zend_optimizer.version=3.3.3 zend_extension=/usr/local/Zend/lib/ZendExtensionManager.so zend_extension_ts=/usr/local/Zend/lib/ZendExtensionManager_TS.so Does APC not play nice with any of these? if i were to guess, those zend_optimizer ones, or less likely, suhosin. afaik, zend_optimizer and apc arent buddies, http://www.webdeveloper.com/forum/showthread.php?t=178217 -nathan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] APC problem with PHP
Jamie Krasnoo wrote: Ok, so I removed zend_optimizer and activated apc. Guess what ... no cores produced. So it is zend_optimizer. I searched around the archives and there seems to be a consensus that it really doesn't do much or maybe even not anything at all. So it's gone. I would have started seeing core files all over the place if it had been something else. Jamie On Tue, Feb 10, 2009 at 4:53 PM, Jamie Krasnoo jkras...@gmail.com wrote: Hmm, I'll try taking down the optimizer and seeing if it segfaults or not. If that's what it is it's a crying shame that apc and zend_optimizer can't get along. On Tue, Feb 10, 2009 at 4:46 PM, Nathan Nobbe quickshif...@gmail.com wrote: On Tue, Feb 10, 2009 at 5:34 PM, Jamie Krasnoo jkras...@gmail.com wrote: Here's the modules I do have running: extension=suhosin.so extension=ffmpeg.so extension=imagick.so extension=magickwand.so extension=memcache.so extension=pdo.so extension=pdo_sqlite.so extension=sqlite.so extension=pdo_mysql.so [Zend] zend_extension_manager.optimizer=/usr/local/Zend/lib/Optimizer-3.3.3 zend_extension_manager.optimizer_ts=/usr/local/Zend/lib/Optimizer_TS-3.3.3 zend_optimizer.version=3.3.3 zend_extension=/usr/local/Zend/lib/ZendExtensionManager.so zend_extension_ts=/usr/local/Zend/lib/ZendExtensionManager_TS.so Does APC not play nice with any of these? if i were to guess, those zend_optimizer ones, or less likely, suhosin. afaik, zend_optimizer and apc arent buddies, http://www.webdeveloper.com/forum/showthread.php?t=178217 -nathan Damn it! $ mount woman mount: can't find woman in /etc/fstab or /etc/mtab -- Thanks! -Shawn http://www.spidean.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] APC problem with PHP
On Tue, Feb 10, 2009 at 5:53 PM, Jamie Krasnoo jkras...@gmail.com wrote: Hmm, I'll try taking down the optimizer and seeing if it segfaults or not. If that's what it is it's a crying shame that apc and zend_optimizer can't get along. maybe give eaccelerator a shot, i believe theyve got an optimizer in there. im not sure how it stacks up to zend's, but it will do both caching and optimization, afaik. also, you will find a not yet stable optimization extension haging out in pecl for apc, http://pecl.php.net/package/optimizer -nathan
