Red Hat Bugzilla – Bug 807860
Apache hang on kernel 2.6.18-308.1.1.el5 with large StartServers and low MaxSpareServers
Last modified: 2014-06-02 09:05:19 EDT
Description of problem:
I am able to reliably reproduce an Apache hang (clients connect and wait forever for response) using these prefork mpm settings and kernel 2.6.18-308.1.1.el5. Booting off an earlier kernel (kernel-2.6.18-274.12.1.el5) allows this to work as expected.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
while [ 1 == 1 ]; do curl -s http://localhost -o /dev/null; done
After several minutes, apache stops responding to requests. (Unresponsive state occurs naturally after about 10 minutes, but above curl loop speeds up the process to just a few)
requests are served quickly
Seeing the same issue.
Also, see bug: https://bugzilla.redhat.com/show_bug.cgi?id=681578
Some other info from the Net for Apache: http://bugs.centos.org/view.php?id=5634
This bug/component is not included in scope for RHEL-5.11.0 which is the last RHEL5 minor release. This Bugzilla will soon be CLOSED as WONTFIX (at the end of RHEL5.11 development phase (Apr 22, 2014)). Please contact your account manager or support representative in case you need to escalate this bug.
Thank you for submitting this request for inclusion in Red Hat Enterprise Linux 5. We've carefully evaluated the request, but are unable to include it in RHEL5 stream. If the issue is critical for your business, please provide additional business justification through the appropriate support channels (https://access.redhat.com/site/support).