[kepler-dev] [Bug 4801] out of memory

[bugzilla-daemon at ecoinformatics.org]

http://bugzilla.ecoinformatics.org/show_bug.cgi?id=4801

--- Comment #3 from Oliver Soong <soong at nceas.ucsb.edu> 2010-02-17 14:57:03 PST ---
After getting the out of memory error, I generated a heap histogram, restarted
Kepler, and generated another heap histogram.  org.hsqldb.PointerNode looks
good, as does org.hsqldb.CachedDataRow.  There's no obvious class that's using
all the memory, but I did notice that the number of
ptolemy.kernel.util.NamedObj$SerializableObject jumps, as do
ptolemy.kernel.util.NamedList and org.kepler.moml.NamedObjId.  I'm guessing
that there are multiple copies of the workflows floating around that aren't
getting gc'ed.  If I hook debug lines into the objectmanager and watch
identityHashMap values for the various NamedObj receiving listeners, I can see
2-4 different java objects with the same name.

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