Edit report at http://bugs.php.net/bug.php?id=52796&edit=1
ID: 52796
Patch added by: f...@php.net
Reported by: momchil at xaxo dot eu
Summary: Sep 08 15:22:32.861368 [WARNING] [pool www0] child
25271 said into stderr: "php
Status: Assigned
Type: Bug
Package: FPM related
Operating System: linux
PHP Version: 5.3SVN-2010-09-08 (SVN)
Assigned To: fat
Block user comment: N
New Comment:
The following patch has been added/updated:
Patch Name: fpm-nomorelibevent.v2.patch
Revision: 1284478708
URL:
http://bugs.php.net/patch-display.php?bug=52796&patch=fpm-nomorelibevent.v2.patch&revision=1284478708
Previous Comments:
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[2010-09-10 00:08:56] f...@php.net
just follow the current bug and the following http://bugs.php.net/52501
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[2010-09-10 00:03:11] momchil at xaxo dot eu
ok, can you please point me to the bug report about reloading so that I
can follow it and know when it gets fixed?
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[2010-09-10 00:00:49] f...@php.net
you should not use FPM reloading since this bug has not been corrected.
Please use
restart instead.
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[2010-09-09 23:57:39] momchil at xaxo dot eu
1,2,4,5 are known.
about forking: I thought you mean forking inside php code and did not
thought about system(), there is some code using the system() function.
reloading: I did not reload fpm at the moment when the crash happened,
we are reloading it on fpm.conf/php.ini changes
about what I wrote just before on 2010-09-09 21:38 UTC: I was told that
the mail() function has been used about 1500 times in a script for
sending newsletter, which might be related as you pointed out.
I will try without the emergency restart as you suggest, thank you for
the pointers and your time investigating this :)
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[2010-09-09 23:47:47] f...@php.net
You have a lots of error in your LOG file:
1- Sep 08 14:10:10.251071 [WARNING] [pool www0] child 13097 said into
stderr: "Connection from
disallowed IP address '10.13.20.24' is dropped."
you should allow those IP address
2- you have a lots of PHP errors which are written to stdout. Search for
"said into stderr" in
you LOG file.
3- You have calls from external command (rm, convert). when run, php
forks for running those
command. The problem seem to be similar to bug
http://bugs.php.net/52501
4- you have a lot of requests which are executing too slow after 15s and
which are ptraced to
slowlog.
5- you have a lot of requests which are timeouted after 30s.
6- you have a lot of warning saying your server "seems busy". you should
review your
configuration file to increase min/max_spare_server.
4- I asked if you did reload FPM. You said no and your LOG file says you
had:
Sep 08 03:10:07.634996 [NOTICE] using inherited socket fd=6,
"10.13.20.26:9910"
5- I asked if your PHP scripts forks somehow. It appears so
finaly, the problem occurs when:
- some PHP scripts are forking some process (via system() or mail())
- FPM is reloading via emergency_restart_threshold
It's a bug related to libevent and forking. I'm on it. You should try
disabling
emergency_restart_threshold temporarily.
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