The timeout specified has expired: ... AH00878: read response failed

Solution Verified - Updated -

Issue

  • The proxy requests are failing with the below error in Apache httpd error_log. When this message is logged, 504 Gateway Timeout will be returned to the client.
[Thu Apr 15 16:23:14.744420 2021] [proxy_ajp:error] [pid 11552] (70007)The timeout specified has expired: AH01030: ajp_ilink_receive() can't receive header
[Thu Apr 15 16:23:14.744489 2021] [proxy_ajp:error] [pid 11552] [client <host>:<port>] AH00992: ajp_read_header: ajp_ilink_receive failed
[Thu Apr 15 16:23:14.744504 2021] [proxy_ajp:error] [pid 11552] (70007)The timeout specified has expired: [client <host>:<port>] AH00878: read response failed from <server-host>:<server-port> ()

Environment

  • Red Hat JBoss Core Services (JBCS)
  • Apache Web Server (HTTPD)
    • 2.4.x
    • mod_cluster

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