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Might be an issue with the query engine. There are probably SQE traces in the IFS, VLOGs and perhaps a problem you
can report (WRKPRB).
Since you have a joblog, you may also want to search for an existing PTF (if
there is one) using some eye-catching keyword:
http://www-912.ibm.com/ImprovedSearch/searchoptions.jsp
If that doesn't yield any APARs/PTFs, open a PMR with IBM. I'm sure they'll
be able to figure out what's happening with the joblog and other traces
available to them.
BTW, you can see what queries are running in a number of ways. One of the
easy to use ones is database monitor (STRDBMON). Other is JDBC exit point.
Not sure knowing what the query is will help you though, but dbmon also
captures errors.
Also, the fact that your Java tool doesn't maintain persistent connections
is hurting your performance (QZDASOINIT jobs disappear/reappear quickly).
HTH, Elvis
Celebrating 11-Years of SQL Performance Excellence on IBM i5/OS and OS/400
www.centerfieldtechnology.com
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