[mod_cluster-issues] [JBoss JIRA] (MODCLUSTER-407) worker-timeout can cause httpd thread stalls
Aaron Ogburn (JIRA)
issues at jboss.org
Wed May 14 16:47:56 EDT 2014
[ https://issues.jboss.org/browse/MODCLUSTER-407?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aaron Ogburn updated MODCLUSTER-407:
------------------------------------
Affects Version/s: 1.2.8.Final
> worker-timeout can cause httpd thread stalls
> --------------------------------------------
>
> Key: MODCLUSTER-407
> URL: https://issues.jboss.org/browse/MODCLUSTER-407
> Project: mod_cluster
> Issue Type: Bug
> Affects Versions: 1.2.8.Final
> Reporter: Aaron Ogburn
> Assignee: Jean-Frederic Clere
>
> 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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