Bug #30671 [Com]: "Unable to fork..."-error appears periodically

Edit report at https://bugs.php.net/bug.php?id=30671&edit=1 ID: 30671 Comment by: jtm dot moon dot forum dot user at gmail dot com Reported by: henning dot mohren at gmx dot de Summary: "Unable to fork..."-error appears periodically Status: Wont fix Type: Bug Package: Filesystem function related Operating System: Solaris 9 PHP Version: 5.0.2 Block user comment: N Private report: N New Comment: My previous comment about the plimit workround does not seem to be working consistently. It worked for about 10 minutes and then I ran into problems again. The process forks are only happening once or twice a minute. So it's not that the new range for FD was used up within 10 minutes. The only thing that seems to work is waiting a few minutes. Previous Comments: ------------------------------------------------------------------------ [2011-10-28 21:59:49] jtm dot moon dot forum dot user at gmail dot com This works for me. php running within Apache (process name "httpd"). sudo plimit -n 65536,1048575 $(pgrep 'httpd') This increases the integer values allowed for new file descriptors. ------------------------------------------------------------------------ [2004-11-17 09:22:19] tony2001@php.net Tune your Solaris instead. Values of rlim_fd_max and rlim_fd_cur can be changed with appropriate settings in /etc/system. I doubt that PHP can implement any workaround for OS limit. ------------------------------------------------------------------------ [2004-11-03 13:36:39] henning dot mohren at gmx dot de Description: ------------ Solaris restricts the use of popen() to 255 files, which is a low limit in case of servers. When using PHP's system() commands, PHP calls Solaris popen(). This fails, when too system-commands have been invoked. See here (http://www.sitepoint.com/forums/showthread.php?p=1245879#post1245879) for more details. Expected result: ---------------- PHP should implement a workaround or call another Solaris function for invoking system commands. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=30671&edit=1