Java Monitor Woes
Java Monitor Woes
- Subject: Java Monitor Woes
- From: Calven Eggert <email@hidden>
- Date: Tue, 06 Sep 2005 15:05:42 -0400
Title: Java Monitor Woes
Problem: WO application instances deployed via JavaMonitor (JM) are not
starting up when Start/Stop button is selected. The status icon animates the
ON switch, however none of the instances ever turn on. All instances are
configured to Auto Recover and Scheduling is enabled.
Troubleshooting: Restarting the servers does nothing.
Within JM, deleting the configured application and re-configuring each
instance does nothing. The app instances are still unable to turn ON.
Running the apps via terminal works. Hence, the frameworks and woa files are
not the issue.
Current Solution: The above behaviour indicates that there is a problem with Java
Monitor's configuration file; SiteConfig.xml. This file is located in
/Library/WebObjects/Configuration/SiteConfig.xml. I hesitate to say that the
file is corrupt because it can be opened and the config details appear
correct. However, deleting this file, restarting JM and reconfiguring each
app and their instances solves the problem.
This solution is not ideal since you must manually reconfigure each and
every app - which is painful if you have over 5 apps and 15 instances to
configure.
Cause: SiteConfig.xml file becomes "corrupt". Why? Unknown. The
SiteConfig.xml file has caused deployment issues twice within the span of 3
months having recently upgraded our systems to WO 5.2.4 with Tiger 10.4.2
running (load balanced on two) 2 x 2.3 GHz Xserves.
Has anyone else encountered this problem? Any solutions?
Calven
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