[mod_cluster-issues] [JBoss JIRA] (MODCLUSTER-407) worker-timeout can cause httpd thread stalls
RH Bugzilla Integration (JIRA)
issues at jboss.org
Wed Jul 2 06:52:27 EDT 2014
[ https://issues.jboss.org/browse/MODCLUSTER-407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12981336#comment-12981336 ]
RH Bugzilla Integration commented on MODCLUSTER-407:
----------------------------------------------------
Michal Babacek <mbabacek at redhat.com> changed the Status of [bug 1098564|https://bugzilla.redhat.com/show_bug.cgi?id=1098564] from NEW to ON_QA
> worker-timeout can cause httpd thread stalls
> --------------------------------------------
>
> Key: MODCLUSTER-407
> URL: https://issues.jboss.org/browse/MODCLUSTER-407
> Project: mod_cluster
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Affects Versions: 1.2.8.Final
> Reporter: Aaron Ogburn
> Assignee: Jean-Frederic Clere
> Fix For: 1.3.1.Final, 1.2.9.Final
>
>
> Setting a modcluster worker-timeout can stall requests and threads on the httpd side when the requests are received with workers in a down state. A stack of the problem thread looks like the following (recursive loops through mod_proxy_cluster from #160 to #2):
> #0 0x00007ff8eb547533 in select () from /lib64/libc.so.6
> #1 0x00007ff8eba39185 in apr_sleep () from /usr/lib64/libapr-1.so.0
> #2 0x00007ff8e84be0d1 in ?? () from /etc/httpd/modules/mod_proxy_cluster.so
> ...
> #160 0x00007ff8e84beb9f in ?? () from /etc/httpd/modules/mod_proxy_cluster.so
> #161 0x00007ff8e88d2116 in proxy_run_pre_request () from /etc/httpd/modules/mod_proxy.so
> #162 0x00007ff8e88d9186 in ap_proxy_pre_request () from /etc/httpd/modules/mod_proxy.so
> #163 0x00007ff8e88d63c2 in ?? () from /etc/httpd/modules/mod_proxy.so
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