Guidance on troubleshooting org.ldaptive.pool.BlockingConnectionPool issue

Mike Osterman ostermmg at
Fri Jul 26 17:41:48 EDT 2019

All, I wanted to report back to the list that after throwing up my hands
and DOUBLING the -xmx (8GB instead of 4GB, which was the highest documented
memory allocation I could find), the trouble has not returned. When in
doubt, add more RAM.

My working theory is that it was a function of not enough available and
collision of garbage collection and the InCommon metadata refresh. Again,
it's just a theory.

I'm looking forward to the per-entity MDQ. :)


On Thu, May 23, 2019 at 1:20 PM Daniel Fisher <dfisher at> wrote:

> On Tue, May 21, 2019 at 10:39 PM Mike Osterman <ostermmg at>
> wrote:
>> I did manage to get a thread dump when in the "bad" state using this
>> command:
>> sudo -u shibidp jstack [PID] > threaddump.log
>> The trick now is interpreting it. Would it make sense to create a Jira
>> issue and upload the dump file at this point? I've given it a pretty
>> thorough look over, but nothing's standing out to me.
> You can create a JIRA issue or send it directly to me. I should have time
> to look at it next week.
> --Daniel Fisher
> --
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