JK Status: Load Balancer Value has offset , negative number of backend connections

[SPH <re...@gmx.net>]

Hi

we have pretty often an offset on our Load Balancer Values and negative
number of backend connections (see jk-status screenshot). We just updated
mod_jk but the problems just come more frequent IMHO.

Might this (little bit older) statistics for worker catalog5 be helpful for
solving / determining our issues?

> tail -n 10000 mod_jk.log | grep "Tue Sep 13.*catalog5.*Tomcat is down or
> refused" -m 1
[Tue Sep 13 00:12:38 2011] [25200:140196360267520] [error]
ajp_get_reply::jk_ajp_common.c (2118): (catalog5) Tomcat is down or refused
connection. No response has been sent to the client (yet)
> tail -n 10000 mod_jk.log | grep "Tue Sep 13.*catalog5.*Tomcat is down or
> refused" | wc -l
39
> tail -n 10000 mod_jk.log | grep "Tue Sep 13.*\[error\].*catalog5" | wc -l
43

By the way I often saw a huge negative number (400-700) of backend
connections during Err contained this number (plus some more), too.

Do you have any ideas how to fix these problems?

Server version: Apache Tomcat/6.0.20
Server built:   May 14 2009 01:13:50
Server number:  6.0.20.0
OS Name:        Linux
OS Version:     2.6.30
Architecture:   i386
JVM Version:    1.6.0_26-b03
JVM Vendor:     Sun Microsystems Inc.

Thanx
SPH

http://old.nabble.com/file/p32471854/jk-status-faulty-value.png
jk-status-faulty-value.png 
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