Hello, I am running a production server with APC and php. We recently had a crash where APC bombed out. When it does this, the server serves empty, white pages.
Here is what the error_log says. [Mon Jun 2 11:20:36 2008] [apc-error] apc_fcntl_lock failed: Bad file descriptor [Mon Jun 02 11:20:37 2008] [notice] child pid 6104 exit signal Segmentation fault (11) [Mon Jun 2 11:20:40 2008] [apc-error] apc_fcntl_lock failed: Bad file descriptor [Mon Jun 2 11:20:40 2008] [apc-error] apc_fcntl_lock failed: Bad file descriptor [Mon Jun 2 11:20:41 2008] [apc-error] apc_fcntl_lock failed: Bad file descriptor [Mon Jun 2 11:20:41 2008] [apc-error] apc_fcntl_lock failed: Bad file descriptor [Mon Jun 2 11:20:41 2008] [apc-error] apc_fcntl_lock failed: Bad file descriptor [Mon Jun 2 11:20:42 2008] [apc-error] apc_fcntl_lock failed: Bad file descriptor [Mon Jun 2 11:20:43 2008] [apc-error] apc_fcntl_lock failed: Bad file descriptor [Mon Jun 2 11:20:45 2008] [apc-error] apc_fcntl_lock failed: Bad file descriptor [Mon Jun 2 11:20:45 2008] [apc-error] apc_fcntl_lock failed: Bad file descriptor ... And so it goes on until apache was restarted. I have not yet found a resolution for this. There are no calls made to apc_store() on the server. It is solely script caching. I have seen bug reports on this: http://pecl.php.net/bugs/bug.php?id=4769 http://pecl.php.net/bugs/bug.php?id=9745 After looking at these, I think what is happening is the cache is filling up, and when it expunge()s it gets in a loop, php kills the process after the 30sec timeout, and the lock is left. Then no more subsequent requests can be served. Has anyone else experienced this, and does anyone know of a fix for this? I am running PHP 5.2.5, and APC 3.0.15. This is the PHP info for APC. APC Support enabled Version 3.0.15 MMAP Support Enabled MMAP File Mask no value Locking type File Locks Revision $Revision: 3.151 $ Build Date Oct 29 2007 19:02:05 Directive Local Value Master Value apc.cache_by_default On On apc.enable_cli Off Off apc.enabled On On apc.file_update_protection 2 2 apc.filters no value no value apc.gc_ttl 3600 3600 apc.include_once_override Off Off apc.localcache Off Off apc.localcache.size 512 512 apc.max_file_size 1M 1M apc.mmap_file_mask no value no value apc.num_files_hint 1000 1000 apc.report_autofilter Off Off apc.rfc1867 Off Off apc.rfc1867_freq 0 0 apc.rfc1867_name APC_UPLOAD_PROGRESS APC_UPLOAD_PROGRESS apc.rfc1867_prefix upload_ upload_ apc.shm_segments 1 1 apc.shm_size 30 30 apc.slam_defense 0 0 apc.stat On On apc.stat_ctime Off Off apc.ttl 0 0 apc.user_entries_hint 4096 4096 apc.user_ttl 0 0 apc.write_lock On On -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
