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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 49468] New: Application stops working with errno=11
Date Sat, 19 Jun 2010 15:19:23 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=49468

           Summary: Application stops working with errno=11
           Product: Tomcat Connectors
           Version: 1.2.30
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P2
         Component: mod_jk
        AssignedTo: dev@tomcat.apache.org
        ReportedBy: neil@JAMMConsulting.com


I have Tomcat 6.0.26 running behind Apache 2.2.3 using mod_jk 1.2.30.

Occasionally, my application stops responding and I see these errors in the
mod_jk log:

[Fri Jun 18 15:30:17.614 2010] [394:47652193829632] [info]
ajp_connection_tcp_get_message::jk_ajp_common.c (1230): (tomcat) can't
receive the response header message from tomcat, network problems or tomcat
(127.0.0.1:8009) is down (errno=11)
[Fri Jun 18 15:30:17.614 2010] [394:47652193829632] [error]
ajp_get_reply::jk_ajp_common.c (2055): (tomcat) Tomcat is down or refused
connection. No response has been sent to the client (yet)
[Fri Jun 18 15:30:17.614 2010] [394:47652193829632] [info]
ajp_service::jk_ajp_common.c (2540): (tomcat) sending request to tomcat
failed (recoverable),  (attempt=1)
[Fri Jun 18 15:31:19.711 2010] [394:47652193829632] [info]
ajp_connection_tcp_get_message::jk_ajp_common.c (1230): (tomcat) can't
receive the response header message from tomcat, network problems or tomcat
(127.0.0.1:8009) is down (errno=11)
[Fri Jun 18 15:31:19.711 2010] [394:47652193829632] [error]
ajp_get_reply::jk_ajp_common.c (2055): (tomcat) Tomcat is down or refused
connection. No response has been sent to the client (yet)
[Fri Jun 18 15:31:19.711 2010] [394:47652193829632] [info]
ajp_service::jk_ajp_common.c (2540): (tomcat) sending request to tomcat
failed (recoverable),  (attempt=2)
[Fri Jun 18 15:31:19.711 2010] [394:47652193829632] [error]
ajp_service::jk_ajp_common.c (2559): (tomcat) connecting to tomcat failed.
[Fri Jun 18 15:31:19.711 2010] [394:47652193829632] [info]
jk_handler::mod_jk.c (2618): Service error=0 for worker=tomcat

According to Rainer Jung, errno 11 is EAGAIN which should not be treated as an
error.

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