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Joseph Hayes

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since Jun 02, 2009
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Recent posts by Joseph Hayes

I manage a team responsible for middleware in our organization. I'm looking for a certification that I can encourage my team to receive realted to JBoss administration. However, it seems that Red Hat has discontinued their cert program until further notice.

I'm wondering if there is any community activity related to creating an Administrative certification program? If not, I'm wondering how I would go about getting involved to create such a thing.

Much obliged ...
13 years ago
Not much I can say, I'm afraid, without seeing javacore* and heapdump* files.

What WebSPhere version are you running exactly (run the wasversion script to get that data) The first and most obvious step, then, is to make sure you're on the latest fixpack.

Also, there is often useful informatoin in the FFDC logs. I suggest you sort them by date modified to find the useful ones.

I also suggest you turn on verbose GC to assure that you are not just legitimately running out of heap space.

It APPEARS that this is happening on a new TCP/IP Socket connection (to be clear, this is a guess), so I would concur with conclusions I've seen you make in another forum that this may well be an app server problem. Are you running Stand-alone WAS and running against the web container within the app server?


13 years ago
Are you using container managed persistence? If not, it will be application specific, I'm afraid.

If it's container managed, are you eventually getting connection timeout exceptions?

If not, the only possibility that I can think of at the moment is that you're somehow keeping connections active but not doing anything with them. The configuration solution for this (as opposed to the programming solution, which should likely be investigated depending on the impact of the outage) would be to use the "aged timeout" setting in the datasource's connection pool. In admin console, navigate as follows: JDBC providers > [your db2 provider] > Data sources > [your datasource]> Connection pools

Reference here for more detail on this: http://publib.boulder.ibm.com/infocenter/wasinfo/v6r1/index.jsp?topic=/com.ibm.websphere.base.doc/info/aes/ae/umj_sesspoolset.htm
13 years ago
WebSphere 7.0 actually comes with 2 licenses of IRAD (IBM Rational Application Developer) for this purpose rather than a separately packaged ASTK.
reference here: http://publib.boulder.ibm.com/infocenter/wasinfo/v7r0/index.jsp?topic=/com.ibm.websphere.nd.doc/info/ae/ae/catk_assemblytools.html
13 years ago