Bug #53028 [NEW]: unable to retrieve process activity of one or more child(ren) in static mode

From: Operating system: CentOS 64bit 2.6.18-194.11.4.el5 PHP version: 5.3.3 Package: FPM related Bug Type: Bug Bug description:unable to retrieve process activity of one or more child(ren) in static mode Description: ------------ Running php-fpm on several dedicated servers, very busy site, with approx 3mm daily page views. Currently running in pm=static mode with max children set to 100. Each system has at least 4GB. Error notice is set to debug. In reviewing the php-fpm error log, several times a day, we'll see this kind of error: Oct 08 12:35:35.574208 [ERROR] pid 1549, fpm_pctl_perform_idle_server_maintenance(), line 347: [pool www] unable to retrieve process activity of one or more child(ren). Will try again later. I posted this via the newsgroup and someone suggested I open a bug report, so here it is. -- Edit bug report at http://bugs.php.net/bug.php?id=53028&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=53028&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=53028&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=53028&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=53028&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=53028&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=53028&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=53028&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=53028&r=needscript Try newer version: http://bugs.php.net/fix.php?id=53028&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=53028&r=support Expected behavior: http://bugs.php.net/fix.php?id=53028&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=53028&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=53028&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=53028&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=53028&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=53028&r=dst IIS Stability: http://bugs.php.net/fix.php?id=53028&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=53028&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=53028&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=53028&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=53028&r=mysqlcfg