#37422 [Asn->Fbk]: FastCGI: comm with server .. aborted

ID: 37422 Updated by: dmitry@php.net Reported By: phpbugs at thequod dot de -Status: Assigned +Status: Feedback Bug Type: CGI related Operating System: Ubuntu Linux PHP Version: 5.1.5CVS Assigned To: dmitry New Comment: the behavior of PHP_FCGI_CHILDREN was changed about year ago. If it is not set then main PHP process doesn't fork worker processes but serve FastCGI requests by itself. I cannot reproduce the problem with PHP_FCGI_CHILDREN is set, but it well reproducable without PHP_FCGI_CHILDREN. BTW I can reproduce the same problem with mod_fastcgi and PHP-5.0, and cannot reproduce with PHP-5.1.4 and zend_enabler. So I assume this is mod_fastcgi bug, that cannot restart PHP properly. Previous Comments: ------------------------------------------------------------------------ [2006-05-12 19:37:53] phpbugs at thequod dot de The test script is just <?php echo 'foo'; ?>. ------------------------------------------------------------------------ [2006-05-12 19:34:38] phpbugs at thequod dot de Description: ------------ I'm running Apache2/mod_fastcgi/PHP5.1.5-dev (built: May 12 2006 19:46:11). The problem is, that without setting PHP_FCGI_CHILDREN children, PHP does not default to the documented value of 8 (no source, but often read): it does not create any children. This might be just a documentation issue/bug, but without using any children, I can reproduce crashing PHP (somehow after PHP_FCGI_MAX_REQUESTS), but also experience with PHP_FCGI_CHILDREN set to 4! This "bogus" report seems to be related: http://bugs.php.net/bug.php?id=27802 Reproduce code: --------------- In fastcgi.conf: FastCgiServer /XXX/fcgi-scripts/XXX/php5-fcgi-starter -user phptest_codeprobe -group phptest_codeprobe -pass-header HTTP_AUTHORIZATION -flush -idle-timeout 60 php5-fcgi-starter script: #!/bin/sh PHPRC="/vhosts/phptest_codeprobe/conf/php5" export PHPRC PHP_FCGI_MAX_REQUESTS=100 export PHP_FCGI_MAX_REQUESTS exec /bin/php5-fcgi 1. Restart Apache 2. A php5-fcgi process gets started (without any childs) 3. ab2 -n 101 url/ 4. A new php5-fcgi process gets "re-spawned" 5. ab2 -n 201 url/ 6. The longest request takes 4s(!), instead of 0.004. 7. ab2 -n 301 url/ 8. The php5-fcgi process disappears forever! This only seems to be an indication, because I have one server setup with PHP_FCGI_MAX_REQUESTS=100 and PHP_FCGI_CHILDREN=4 and it also dies away like this (with the same entries in the server's error log). This is since PHP 5.1.3/5.1.4.. Expected result: ---------------- Do not crash. Actual result: -------------- Apache error log: FastCGI: comm with server "/var/www/fcgi-scripts/phptest_codeprobe/php5-fcgi-starter" aborted: idle timeout (60 sec) FastCGI: incomplete headers (0 bytes) received from server "/var/www/fcgi-scripts/phptest_codeprobe/php5-fcgi-starter" ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=37422&edit=1