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https://issues.apache.org/jira/browse/CASSANDRA-11026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15119393#comment-15119393
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Benedict commented on CASSANDRA-11026:
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Prior to CASSANDRA-8099 the min/max buffers were "minimized" (i.e. they were
extracted from whatever enclosing buffer they were sourced from, into their own
heap allocation). This is no longer the case, so the slabs they are allocated
on get linked to, gradually consuming heap as more sstables are flushed (a
restart will bring temporary respite).
> OOM
> ---
>
> Key: CASSANDRA-11026
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11026
> Project: Cassandra
> Issue Type: Bug
> Reporter: Maxim Podkolzine
> Attachments: Screenshot.png, dump.png
>
>
> Cassandra 3.0.2 fails with OOM. The heapdump shows large number of
> HeapByteBuffer instances, each retaining 1Mb (see the details on the
> screenshot). Overall retained size is ~2Gb.
> We can provide the additional info and the whole heapdump if necessary.
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