|  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login
Bug #60670 When under load, PHP-FPM master process silently crashes
Submitted: 2012-01-06 13:35 UTC Modified: 2012-01-11 09:53 UTC
From: gwenmael dot rouxel at neovote dot com Assigned:
Status: Closed Package: FPM related
PHP Version: 5.3.8 OS: Debian Lenny
Private report: No CVE-ID: None
View Add Comment Developer Edit
Welcome! If you don't have a Git account, you can't do anything here.
You can add a comment by following this link or if you reported this bug, you can edit this bug over here.
Block user comment
Status: Assign to:
Bug Type:
From: gwenmael dot rouxel at neovote dot com
New email:
PHP Version: OS:


 [2012-01-06 13:35 UTC] gwenmael dot rouxel at neovote dot com
I ran some load tests on a virtual machine which has 16GB ram and four 8Ghz VCores. 

The tests were run using JMeter.
When ~300 simultaneous connections (10 request loop per connection) to FPM exist (through NGinx), The master process crashes and I get 502 errors. The remaining child processes continue executing their scripts then terminate.

I use a static pool configuration, and no matter what the child processes number is, it crashes.


Add a Patch

Pull Requests

Add a Pull Request


AllCommentsChangesGit/SVN commitsRelated reports
 [2012-01-06 13:44 UTC]
-Status: Open +Status: Feedback
 [2012-01-06 13:44 UTC]
Thank you for this bug report. To properly diagnose the problem, we
need a backtrace to see what is happening behind the scenes. To
find out how to generate a backtrace, please read for *NIX and for Win32

Once you have generated a backtrace, please submit it to this bug
report and change the status back to "Open". Thank you for helping
us make PHP better.

 [2012-01-11 09:53 UTC] gwenmael dot rouxel at neovote dot com
I am unable to reproduce the crash for now, so I cannot provide dumps or a backtrace. If it happens again, though, I'll do.

Thanks for your time.
 [2012-01-11 09:53 UTC] gwenmael dot rouxel at neovote dot com
-Status: Feedback +Status: Closed
PHP Copyright © 2001-2024 The PHP Group
All rights reserved.
Last updated: Thu May 30 11:01:31 2024 UTC