[jgroups-users] OOM issues?

Hi all,

Am grasping at straws a bit here before I (learn how to) dig into what's
going on. Short version: customers with our product are starting to hit OOM
errors, and this is generally with Java 8 and JGroups 4.0.13. I haven't
looked into what's in the memory yet, but with a simple test of our code
where the process doesn't do anything but sit there and take part in a
jgroups cluster, I see the tenured memory just grow and grow up to a max
(we used to run with -Xmx32m, just bumped it up to 128m, but my test is
with 20m just for curiosity). Am using JConsole, which may or may not be
the right thing.

Anyway, am just curious for any stories of similar things with recent JDK
versions or some random thing I might have missed. Our jchannel stack
(which I can share again) is unchanged for a while now. I thought maybe we
made a mistake in the jdk 6->8 changes and left some resources unclosed,
but I'm seeing the memory issue in nodes we have that don't actually do
anything after startup.

As above, just casting about for more info in case someone has seen this
already. I don't look forward to the idea of trying to debug the JDKs if
needed.

Thanks all,
Bobby

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