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https://issues.apache.org/jira/browse/CASSANDRA-2868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13064247#comment-13064247
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Chris Burroughs commented on CASSANDRA-2868:
--------------------------------------------
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7066129 will be the id when
bugs.sun.com gets around to doing it's thing.
I confirmed that -XX:MaxDirectMemorySize does not protect you from this (ie
it's a native native leak, not some DirectByteBuffer thing). I'll be able to
test this but not until the end of this week at the earliest (and it will then
take at least another week to be sure).
> Native Memory Leak
> ------------------
>
> Key: CASSANDRA-2868
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2868
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.7.6
> Reporter: Daniel Doubleday
> Priority: Minor
>
> We have memory issues with long running servers. These have been confirmed by
> several users in the user list. That's why I report.
> The memory consumption of the cassandra java process increases steadily until
> it's killed by the os because of oom (with no swap)
> Our server is started with -Xmx3000M and running for around 23 days.
> pmap -x shows
> Total SST: 1961616 (mem mapped data and index files)
> Anon RSS: 6499640
> Total RSS: 8478376
> This shows that > 3G are 'overallocated'.
> We will use BRAF on one of our less important nodes to check wether it is
> related to mmap and report back.
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