Apc Php Fatal Error Cannot Redeclare Class
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Fatal Error Cannot Redeclare Class Application_octetstream_download
Cannot redeclare class up vote 20 down vote favorite 10 Since I installed APC for PHP with PECL I get sometimes these errors: Cannot redeclare class xxx xxx changes from time to time. I could disable APC but APC improves the performance great! Is there a known bug or could I do something else to prevent these errors? I'm using Ubuntu 8.04 LTS with PHP 5.2.4. fatal error cannot redeclare class contact info widget Edit/Update (from comments): I use the Zend Framework Autoloader and these error never occurred before I enabled APC. A few moments ago I get for example that error: Fatal error: require(): Cannot redeclare class zend_db_adapter_abstract in /paths/app/lib/Zend/Db/Select.php on line 27 apc php share|improve this question edited Jan 1 '11 at 20:30 asked Jan 1 '11 at 19:19 Poru 2,799144782 1 Read the whole error message. Do not include the said file twice. Use include_once. Or failing that, wrap all definitions in if (!class_defined("xxx")) { –mario Jan 1 '11 at 19:51 In addition to only using include_once, try and re-architect the application to make use of class autoloading, so that PHP will only include files when needed. Also stick to common-sense things, like one class per file, etc. –Rob Jan 1 '11 at 20:10 1 what do you mean by xxx? is xxx actually the class you want to load? –The Surrican Jan 1 '11 at 20:10 I use the Zend Framework Autoloader and these error never occurred before I enabled APC. A few moments ago I get for example that error: Fatal error: require(): Cannot redeclare class zend_db_adapter_abstract in /paths/app/lib/Zend/Db/Select
Categories: Developing Tags: Code APC stands for the Alternative PHP Cache. PHP is a dynamic language that is compiled on-demand into bytecode at execution time. To
Fatal Error Cannot Redeclare Class Vc_manager In
improve performance, APC stores this bytecode so that it can be reused fatal error cannot redeclare class oauthexception instead of having to be recompiled each time. Pantheon provides APC by default across all plans, but the size fatal error cannot redeclare class oauthsignaturemethod_hmac_sha1 of the APC memory cache (apc.shm_size) varies depending on the service level. Frequently Asked Questions Can APC be used as a cache backend on Pantheon? Yes, APC can be used as http://stackoverflow.com/questions/4575341/php-with-apc-fatal-errors-cannot-redeclare-class a cache backend or a "key-value store"; however, this is not recommended. APC lacks the ability to span multiple server environments. Instead, Pantheon provides Redis as a caching backend, which has better performance. What happens if the APC memory cache is too small? If the size of the scripts loaded exceed the size of the APC cache, the cache will be flushed https://pantheon.io/docs/alternative-php-cache/ and rebuilt, resulting in slow execution time. Symptoms of this will include the following message in dev environments and in watchdog logs: Warning: require_once(): Unable to allocate memory for pool. In these circumstances, either increasing the SHM size by upgrading your account, or reducing the amount of scripts read by PHP by disabling unneeded modules typically resolves the issue. To learn more about how much memory your site is using, visit the site's New Relic dashboard. How can I determine what my current APC settings are? Search for shm_size in phpinfo. See Securely Working with phpinfo. Can the shm_size be configured manually? No, as this is not a runtime configuration, the shm_size cannot be changed. If a greater shm_size is needed, then the two options available are to optimize the codebase to operate within the service level, or to upgrade the site account for a larger shm_size allocation. Troubleshooting I got a fatal error about redeclaring a class in Drupal core; what should I do? In some rare cases, there is a known issue with APC where it attempts to load a file th
Support Search GitHub This repository Watch 118 Star 996 Fork 338 netz98/n98-magerun Code Issues 99 Pull requests 2 Projects 0 Wiki Pulse Graphs New https://github.com/netz98/n98-magerun/issues/153 issue APC settings #153 Closed fbrnc opened this Issue Jun 11, 2013 · 8 comments Projects None yet Labels enhancement Milestone No milestone Assignees No one assigned 5 participants fbrnc https://forums.cpanel.net/threads/apc-and-blank-pages-and-fatal-errors.317341/ commented Jun 11, 2013 It's a known issue that executing phars doesn't work well with apc enabled (this is still the case or is this resolved now?) Anyways this was driving fatal error me crazy today and I got all kinds of strange errors (Cannot redeclare class, class not found,...) Maybe it would be nice to check the apc ini settings while bootstrapping n98-magerun and printing a warning is problems have been detected similar to the checks done in the composer installer: http://getcomposer.org/installer This works for me as a workaround to make sure apc is fatal error cannot disabled on a server where I'm not allowed to touch php.ini: php -d apc.enable_cli=0 n98-magerun.phar netz98 member cmuench commented Jun 12, 2013 @fbrnc Thanks. I currently had no problems with APC cache. But good to know. I checked composer install.php script. And it seems that we could use it and replace all the composer.phar calls with n98-magerun.phar. What do you think about providing this installation script? fbrnc commented Jun 12, 2013 Hi Christian, this is not so much about having an installer (although this won't hurt and is a nice addition, but installing magerun isn't a big deal anyways). In our case n98-magerun will be deployed to a server as part of a project, so we will run into issue while running n98-magerun and not while installing it initially (because this is not happening). Having a runtime check might be a better solution. On the other hand this could be annoying if it always shows up even if the settings don't match, even if there is no real problem (or is it always a problem with apc? with all versions of PHP a
Plans & Pricing Partners Support Resources Preview Forums Forums Quick Links Search Forums New Posts Search titles only Posted by Member: Separate names with a comma. Newer Than: Search this thread only Search this forum only Display results as threads More... Useful Searches Recent Posts Resources Resources Quick Links Search Resources Most Active Authors Latest Reviews Feature Requests Defects Menu Log in Sign up The Community Forums Interact with an entire community of cPanel & WHM users! cPanel Forums > cPanel & WHM® (for Linux® Servers) > General Discussion > This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More. apc and blank pages and fatal errors Discussion in 'General Discussion' started by digitalmahdi, Jan 15, 2013. digitalmahdi Member Joined: Jan 31, 2009 Messages: 22 Likes Received: 0 Trophy Points: 1 cPanel Access Level: Root Administrator Hello there, I've just installed apc on my server which is hosting different kind of cMS es and ... but for some websites im getting a blank page and some other i get fatal errors. like VBultin websites are showing fatal errors everywhere ;apc.enabled=1 ;apc.shm_size=512M ;apc.num_files_hint=10000 ;apc.user_entries_hint=10000 ;apc.max_file_size=5M ;apc.stat=0 ;apc.optimization=0 ;apc.shm_segments=1 ;apc.enable_cli=1 ;apc.cache_by_default=1 ;apc.include_once_override=1 i had to comment the config to make the sites working again. can i know why does that happen? and how to prevent? i need to use apc for some of the websites to keep my load balanced and the server stable thank u in advance. #1 digitalmahdi, Jan 15, 2013 hgrg Well-Known Member Joined: Oct 4, 2010 Messages: 90 Likes Received: 0 Trophy Points: 6 cPanel Access Level: Root Administrator why dont youo provide some error messages u got? #2 hgrg, Jan 16, 2013 outofcontrol Member Joined: May 18, 2009 Messages: 14 Likes Received: 0 Trophy Points: 1 Location: Montreal Did you ever sort this out. We are having the same issues with vBulletin. We've ended up building APC from svn trunk (repository - Revision 330169: /pecl/apc/trunk) and have these settings: Code: apc.shm_size = 512M apc.enabled = 1 apc.max_file_size = 2M apc.include_once_override = 1 apc.canonicalize = 0 apc.stat = 0 apc.stat_ctime = 1 Using apc.include_once_override = 0