Title: PHP Warning: filesize(): stat failed Last modified: February 24, 2022 --- # PHP Warning: filesize(): stat failed * [net](https://wordpress.org/support/users/krstarica/) * (@krstarica) * [4 years, 3 months ago](https://wordpress.org/support/topic/php-warning-filesize-stat-failed-2/) * Occasionally in PHP log seeing entries similar to this: * ``` [Feb 24, 17:10:48] PHP Warning: filesize(): stat failed for /home/www/wp-content/cache/supercache/www.website.com/somelink/15266319706217ae08386910.65424059.tmp in /home/www/wp-content/plugins/wp-super-cache/wp-cache-phase2.php on line 2331 [Feb 24, 17:10:48] PHP Warning: filesize(): stat failed for /home/www/wp-content/cache/supercache/www.website.com/somelink/15266319706217ae08386910.65424059.tmp.gz in /home/www/wp-content/plugins/wp-super-cache/wp-cache-phase2.php on line 2345 ``` * Wondering what might be the cause of this? Race condition? * Using Cache Delivery Method: Expert. Viewing 10 replies - 1 through 10 (of 10 total) * Plugin Author [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/) * (@donncha) * [4 years, 2 months ago](https://wordpress.org/support/topic/php-warning-filesize-stat-failed-2/#post-15492138) * I don’t think it’s a race condition but the files should have been created before the filesize() check is made. I don’t think it’s anything to worry about but some pages may not be cached on your site, sometimes. * Thread Starter [net](https://wordpress.org/support/users/krstarica/) * (@krstarica) * [4 years, 2 months ago](https://wordpress.org/support/topic/php-warning-filesize-stat-failed-2/#post-15498411) * But seeing hundreds of these messages every day? * Plugin Author [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/) * (@donncha) * [4 years, 2 months ago](https://wordpress.org/support/topic/php-warning-filesize-stat-failed-2/#post-15499731) * That is a problem. I’m pretty sure it’s not a problem with the plugin. Has your server been shut down expectantly recently? If it’s a Linux server you might want to run e2fsck on the filesystem to make sure files are created correctly. * Thread Starter [net](https://wordpress.org/support/users/krstarica/) * (@krstarica) * [4 years, 2 months ago](https://wordpress.org/support/topic/php-warning-filesize-stat-failed-2/#post-15501713) * There was no unexpected shutdown of the server. * efsck shows file system is clean. * The only non-standard thing on the server is that one of the plugins clears WP Super Cache on request, using the following code: * ``` $cache_dir_path = get_supercache_dir(); prune_super_cache( $cache_dir_path . 'index.html', true ); prune_super_cache( $cache_dir_path . 'index.html.gz', true ); ``` * Not sure is that related. * Plugin Author [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/) * (@donncha) * [4 years, 2 months ago](https://wordpress.org/support/topic/php-warning-filesize-stat-failed-2/#post-15502139) * It shouldn’t interfere but if you’re only deleting one file you should probably use unlink() instead: * ``` unlink( $cache_dir_path . 'index.html' ); unlink( $cache_dir_path . 'index.html.gz' ); ``` * Thread Starter [net](https://wordpress.org/support/users/krstarica/) * (@krstarica) * [4 years, 2 months ago](https://wordpress.org/support/topic/php-warning-filesize-stat-failed-2/#post-15502270) * Not deleting the single page from cache, but need to delete complete cache. * Regarding “filesize(): stat failed” warnings, it seems we are not checking if the file exists before checking its size: [https://stackoverflow.com/a/34753479/5204858](https://stackoverflow.com/a/34753479/5204858) * Plugin Author [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/) * (@donncha) * [4 years, 2 months ago](https://wordpress.org/support/topic/php-warning-filesize-stat-failed-2/#post-15502302) * Ah, that’s it then. You’re deleting the entire cache right at the same time a cached page is being created. Your cache must be getting destroyed quite often if you see this error regularly. * I’m aware the plugin isn’t checking if the file exists, the warning you’re seeing is happening while we create a new page. There’s no way to get to that code without the temporary cache file existing. Unless of course you’re blowing away the cache on a regular basis in another process. 🙂 * I’ll put an “@” in front of it and suppress the error message. Those cache files aren’t getting created anyway. * Thread Starter [net](https://wordpress.org/support/users/krstarica/) * (@krstarica) * [4 years, 2 months ago](https://wordpress.org/support/topic/php-warning-filesize-stat-failed-2/#post-15502476) * This is 24-hour span: * ``` [27-Mar-2022 04:58:44 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 04:58:44 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 06:31:15 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 06:31:15 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 06:34:34 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 06:34:34 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 06:40:32 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 06:40:32 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 07:04:29 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 07:04:29 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 07:04:29 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 07:04:29 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 07:07:13 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 07:07:13 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 07:16:36 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 07:16:36 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 07:34:37 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 07:34:37 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 07:58:29 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 07:58:29 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 08:10:30 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 08:10:30 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 09:05:01 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 09:05:01 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 09:06:02 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 09:06:02 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 09:17:01 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 09:17:01 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 09:28:25 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 09:28:25 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 09:50:22 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 09:50:22 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 09:58:13 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 09:58:13 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 10:16:12 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 10:16:12 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 11:36:02 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 11:36:02 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 12:04:31 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 12:04:31 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 12:13:59 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 12:13:59 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 12:50:55 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 12:50:55 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 13:34:32 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 13:34:32 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 13:35:16 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 13:35:16 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 13:37:17 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 13:37:17 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 14:32:17 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 14:32:17 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 14:58:10 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 14:58:10 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 15:23:03 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 15:23:03 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 15:23:03 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 15:23:03 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 15:40:31 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 15:40:31 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 15:46:39 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 15:46:39 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 15:46:39 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 15:46:39 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 15:46:39 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 15:46:39 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 17:14:01 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 17:14:01 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 17:17:59 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 17:17:59 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 17:44:04 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 17:44:04 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 17:50:14 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 17:50:14 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 18:04:37 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 18:04:37 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 18:42:23 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 18:42:23 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 19:46:42 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 19:46:42 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 21:57:46 UTC] PHP Warning: filesize(): stat failed [27-Mar-2022 21:57:46 UTC] PHP Warning: filesize(): stat failed [28-Mar-2022 02:43:56 UTC] PHP Warning: filesize(): stat failed [28-Mar-2022 02:43:56 UTC] PHP Warning: filesize(): stat failed [28-Mar-2022 04:43:32 UTC] PHP Warning: filesize(): stat failed [28-Mar-2022 04:43:32 UTC] PHP Warning: filesize(): stat failed [28-Mar-2022 04:46:48 UTC] PHP Warning: filesize(): stat failed [28-Mar-2022 04:46:48 UTC] PHP Warning: filesize(): stat failed [28-Mar-2022 04:46:51 UTC] PHP Warning: filesize(): stat failed [28-Mar-2022 04:46:51 UTC] PHP Warning: filesize(): stat failed ``` * Since we do use official prune_super_cache() function to destroy cache, this is actually a race condition 😉 * Plugin Author [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/) * (@donncha) * [4 years, 2 months ago](https://wordpress.org/support/topic/php-warning-filesize-stat-failed-2/#post-15521323) * In [https://github.com/Automattic/wp-super-cache/pull/814](https://github.com/Automattic/wp-super-cache/pull/814) I hid those warnings so you won’t see this message after the next release. Thanks for the report! * Thread Starter [net](https://wordpress.org/support/users/krstarica/) * (@krstarica) * [4 years, 1 month ago](https://wordpress.org/support/topic/php-warning-filesize-stat-failed-2/#post-15544757) * Many thanks [@donncha](https://wordpress.org/support/users/donncha/) Viewing 10 replies - 1 through 10 (of 10 total) The topic ‘PHP Warning: filesize(): stat failed’ is closed to new replies. * ![](https://ps.w.org/wp-super-cache/assets/icon-256x256.png?rev=3506220) * [WP Super Cache](https://wordpress.org/plugins/wp-super-cache/) * [Frequently Asked Questions](https://wordpress.org/plugins/wp-super-cache/#faq) * [Support Threads](https://wordpress.org/support/plugin/wp-super-cache/) * [Active Topics](https://wordpress.org/support/plugin/wp-super-cache/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wp-super-cache/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wp-super-cache/reviews/) * 10 replies * 2 participants * Last reply from: [net](https://wordpress.org/support/users/krstarica/) * Last activity: [4 years, 1 month ago](https://wordpress.org/support/topic/php-warning-filesize-stat-failed-2/#post-15544757) * Status: not resolved