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https://issues.apache.org/jira/browse/CASSANDRA-6149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13787587#comment-13787587
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Kai Wang commented on CASSANDRA-6149:
-------------------------------------
MAT shows "One instance of "com.google.common.cache.LocalCache" loaded by
"sun.misc.Launcher$AppClassLoader @ 0xd03530b0" occupies 942,959,256 (91.01%)
bytes."
Another thing I notice is this OOM accompanoes with a LOT of "Unable to delete
... (it will be removed on server restart; we'll also retry after GC)" errors.
I understand it might be OK on Windows. But the amount of such errors I see
with 1e0d9513b748fae4ec0737283da71c65e9272102 seem unusual. In fact I don't see
a single such error prior to 1e0d9513b748fae4ec0737283da71c65e9272102.
> OOM in Cassandra 2.0.1
> ----------------------
>
> Key: CASSANDRA-6149
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6149
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Environment: Windows 7 64 bit. Java 64-bit 1.7.0_25. Cassandra 2.0.1
> Reporter: Kai Wang
> Labels: newbie
>
> I have a program to stress test Cassandra. What it does is remove/insert rows
> with a small set of row keys as fast as possible. Two CFs are involved. When
> I test against C* 1.2.3 with default configurations, it ran for 24 hours and
> C* doesn't having any issue. However after I upgraded to C* 2.0.1, C* crashes
> on OOM within 1-2 minutes. I can consistently reproduce this.
> I built C* from the source and found out the last good changeset is
> cfa097cdd5e28d7fe8204248e246a1fae226d2c0. As soon as I include the next
> changeset 1e0d9513b748fae4ec0737283da71c65e9272102, C* starts to crash.
> What's interesting is although it seems the change was reverted by
> fc1a7206fe15882fd64e7ba8eb68ba9dc320275f. C* built from
> fc1a7206fe15882fd64e7ba8eb68ba9dc320275f has the same problem - OOM within
> minutes.
> I didn't test against the official 2.0.0. But the C* built from
> 03045ca22b11b0e5fc85c4fabd83ce6121b5709b seems OK. I assume that's what 2.0.0
> is.
> I use default configurations in all cases. I didn't tune anything.
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