bugzilla at apache
Oct 13, 2009, 6:17 AM
Post #1 of 1
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[Bug 42695] mod_proxy balancer problem
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https://issues.apache.org/bugzilla/show_bug.cgi?id=42695
Ralf Kraudelt <kraudelt [at] zv> changed:
What |Removed |Added
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Status|RESOLVED |REOPENED
Resolution|REMIND |
--- Comment #4 from Ralf Kraudelt <kraudelt [at] zv> 2009-10-13 06:17:03 UTC ---
When I move from 2.2.11 to 2.2.13 or 2.2.14, this problem occurs. When I move
back to 2.2.11, the problem disappears. Apache HTTPD runs under Windows
2003SP2.
My configuration is:
<Proxy balancer://sbhome1>
BalancerMember ajp://sbhome-tomcat1:8009/qisserver keepalive=On
route=wzvx13
BalancerMember ajp://sbhome-tomcat4:8009/qisserver keepalive=On
route=wzvx08
ProxySet lbmethod=bybusyness
</Proxy>
ProxyPass /qisserver balancer://sbhome1 stickysession=JSESSIONID|jsessionid
nofailover=On timeout=60
The error is:
[Tue Oct 13 09:36:41 2009] [error] ajp_read_header: ajp_ilink_receive failed
[Tue Oct 13 09:36:41 2009] [error] (120006)APR does not understand this error
code: proxy: read response failed from 141.27.194.8:8009 (sbhome-tomcat4)
[Tue Oct 13 09:36:41 2009] [error] proxy: BALANCER: (balancer://sbhome1). All
workers are in error state for route (wzvx08)
[Tue Oct 13 09:36:41 2009] [error] proxy: BALANCER: (balancer://sbhome1). All
workers are in error state for route (wzvx08)
Tomcat is 6.0.18, Java is 1.5b16 on SLES10SP2 64Bit, VMWare ESX 3.5. During the
errors in Apache's error.log (1-2 minutes), our Tomcat application seems not to
respond and loses it's database connections. Our application logs show some
kind of blackout (no entries) for the time of unresponsiveness. After 1-2
minutes, Tomcat continues to work without error.
There are no messages regarding threads nor anything else in Tomcat. The error
occurs in high load (not overload) situations on both Tomcat servers.
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