Apc Fatal Error Cannot Redeclare Class
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it only takes a minute: Sign up PHP with APC: Fatal errors: 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
Fatal Error Cannot Redeclare Class Oauthexception
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. 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 fatal error cannot redeclare class oauthsignaturemethod_hmac_sha1 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.php on line 27 –Poru Jan 1 '11 at 20:15 What version of APC are you running? –Chris Henry Jan 1 '11 at 23:00 | show 1 more comment 6 Answers 6 active oldest votes up vote 12 down vote I had the same problem with a bunch of PHP libraries as soon as I enabled APC. After a lot of hair pulling I found that setting apc.include_once_override = 0 cleared things up. Still monitoring but haven't had a the prob
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 improve performance, APC stores this bytecode so that it can be fatal error cannot redeclare class envato wp toolkit reused instead of having to be recompiled each time. Pantheon provides APC by default across fatal error cannot redeclare class recaptcharesponse all plans, but the size of the APC memory cache (apc.shm_size) varies depending on the service level. Frequently Asked Questions Can APC fatal error cannot redeclare class wordpress be used as a cache backend on Pantheon? Yes, APC can be used as a cache backend or a "key-value store"; however, this is not recommended. APC lacks the ability to span multiple server environments. Instead, http://stackoverflow.com/questions/4575341/php-with-apc-fatal-errors-cannot-redeclare-class 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 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 https://pantheon.io/docs/alternative-php-cache/ 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 that has already been cached. For example: Fatal error: Cannot redeclare class InsertQuery_mysql in ... on line 87 If this happens often, a workaround would be to place the following at the top of the file in question: if (!class_exists('NAMEOFCLASSBEINGREDECLARED')) { then closing the condition with the corresponding bracket at the bottom: } How do I clear the APC opcode cache? Sometimes, due to (very rare) corruption, the A
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 issue APC settings #153 https://github.com/netz98/n98-magerun/issues/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 commented Jun 11, 2013 It's a http://fuelphp.com/forums/discussion/9448/apc-caching 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 me crazy today and I got all kinds fatal error 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 disabled on a server where I'm not allowed to touch php.ini: php fatal error cannot -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 and APC?) Have a good day, Fabrizio cmuench referenced this issue Jul 21, 2013 Closed PHP Fatal error on dev:symlinks #181 netz98 member cmuench commente
to use APC caching? If I enabled // default storage driver 'driver' => 'apc', 1. Fatal error: include() [function.include]: Cannot redeclare class phpquickprofiler in C:\Apache\fuel\core\classes\autoloader.php on line 244 If I sets profiling = false 2. ErrorException [ Compile Error ]: Cannot redeclare class Fuel\Core\Config_File COREPATH/classes/config/file.php @ line 8 What's wrong? Harro Verton June 2012 APC caching has nothing to do with the PHP code, it's a data cache. My assumption is that you've just installed APC, and these errors are related to the installation. It seems to be a common error with APC... Solovej June 2012 Problem Solved. I have added to php.ini apc.include_once_override = 0 apc.canonicalize = 0 apc.stat = 0 Here was same problem: http://stackoverflow.com/questions/4575341/php-with-apc-fatal-errors-cannot-redeclare-class Add a Comment Howdy, Stranger! It looks like you're new here. If you want to get involved, click one of these buttons! Sign In Apply for Membership Categories All Discussions4,642 General ↳ General3,034 ↳ Job Board12 ↳ Installation & Setup197 Packages ↳ Oil202 ↳ Orm644 ↳ Auth244 Development ↳ Tips and Tutorials118 ↳ Code share144 ↳ Applications46 In this Discussion Harro Verton June 2012 Solovej June 2012 Quick links The team Job Board Security Advisories Contribute Downloads FuelPHP on GitHub Development Docs Development API Latest posts FuelPHP releases v1.8 FuelPHP releases v1.7.3 V2 Alpha 1 release! Future of the ORM First v2 Alpha FuelPHP releases v1.7.2 FuelPHP releases v1.7.1 FuelPHP releases v1.7 Tweets by @fuelphp Sponsored by Exite Managed Hosting Services © Copyright 2010-2016 fuelphp.com