I just had a bizarre little adventure after updating one of our
Xserves to 10.4.9, and I'm wondering if anyone might be able to shed
any light on it for me.
Our deployment environment is currently:
- a Sun Solaris machine that runs Apache with mod_WebObjects, some WO
5.2 apps, and JavaMonitor
- several Xserves that run WO 5.3
After installing the 10.4.9 update on one of the Xerves, and
rebooting, I could start up app instances on the Xserve via
JavaMonitor, but Monitor's "status" of those instances never changed
from "Off" to "On", and I couldn't access the instances. The
instances on the Xserve were in fact running - I could even start up
apache on the Xserve, and access the instance via a development URL
to that machine. And everything on ths Xserve looked normal: wotaskd
was running, the app was started up and logging its debug output
normally.
It almost seemed as though communication between the Sun and the
Xserve was one-way. Commands (e.g. to start up an instance) were
being sent by the Sun, and processed by the Xserve, but status wasn't
being returned back to the Sun.
My gut feeling is that something got out of sync between the http
adaptor and wotaskd processes on the various machines. But I did
shut down and restart the Sun's apache, wotaskd, and monitor, and
rebooted the problem Xserve. All to no avail.
I had installed 10.4.9 on another Xserve in the environment a couple
of weeks ago, and had no problems deploying instances on it afterwards.
This morning, I added "-D_DeploymentDebugging=true" to the problem
Xserve's com.apple.wotaskd.plist launchd config file, arranged for
its StandardErrorOutput to be logged, unloaded and reloaded the
plist, and suddenly, everything is working normally again.
Has anyone had anything like this happen before? Any ideas what
might have been the problem?
--
Patrick Robinson
AHNR Info Technology, Virginia Tech
[EMAIL PROTECTED]
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