Re: Deployment with Embedded Frameworks and Duplicate libraries
Re: Deployment with Embedded Frameworks and Duplicate libraries
- Subject: Re: Deployment with Embedded Frameworks and Duplicate libraries
- From: Chuck Hill <email@hidden>
- Date: Tue, 4 Aug 2009 10:08:44 -0700
On Aug 4, 2009, at 10:04 AM, Mr. Frank Cobia wrote:
I did indeed discover that the problem was in the app. When one
instance of my app hangs, JavaMonitor says that wotaskd is hung
and all kinds of bad things happen. Either the apache adaptor does
not redirect to a functioning instance or if it does, it does so
after a long pause.
How long? The default is 15 seconds. If you have multiple hung
instances, it could redirect to one of them.
The problem is that it never times out. Any user trying to go to
that instance just hangs forever.
It should not unless going through direct connect. Perhaps you have
increased the timeouts for this app in JavaMonitor?
Chuck
Is there some reason that JavaMonitor/wotaskd/Apache Adptor can
not deal correctly with a hung instance? Is there anything I can
do to make it behave better?
Define better. It deals with it fairly well, given that it can
only assume what some symptoms might mean.
See above. It is workable for 15 seconds, but it seems to hang
forever.
Also, I have to turn direct connect off to be able to do the
refuse new sessions, so is there another way to figure out which
app is hung so that it can be killed?
Look at the stack trace, like below. Also look for growing numbers
of worker threads. If you have more than 16, you probably have a
problem.
I will look into that.
Thanks,
Frank
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--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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