With httpd mod_proxy, the following message is seen on the log "proxy: error reading status line from remote server (null)" during stress testing

Solution Unverified - Updated -

Issue

  • mod_proxy is configured for virtual host. During high http load, the requested page is not retrieved. At the same time, mod_proxy throws the following error's in the httpd error_log
proxy: error reading status line from remote server (null)
  • This is the same as upstream bug https://issues.apache.org/bugzilla/show_bug.cgi?id=37770.
  • A comment in the bug report claims that the fix is included with Apache 2.2.10

Environment

  • Red Hat Enterprise Linux 5 update 3
  • httpd-2.2.3-23.el5

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