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https://issues.apache.org/jira/browse/CASSANDRA-7897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benjamin Lerer updated CASSANDRA-7897:
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Attachment: CASSANDRA-7897-V2-2.1.txt
CASSANDRA-7897-V2-2.0.txt
The patches exposes through JMX and through NodeTool the Off heap size of the
bloom filters, the compression metadata, the index summaries (2.0+) and the
memtables (2.1+).
The total offheap size has been added to the nodetool {{info}} part and the
offsize per data structure (bloom filter, index summaries...) to the
{{cfstats}} part.
> NodeTool command to display OffHeap memory usage
> ------------------------------------------------
>
> Key: CASSANDRA-7897
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7897
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Vijay
> Assignee: Benjamin Lerer
> Priority: Minor
> Fix For: 2.0.12
>
> Attachments: 0001-CASSANDRA-7897.patch, CASSANDRA-7897-V2-2.0.txt,
> CASSANDRA-7897-V2-2.1.txt
>
>
> Most of the highest memory consuming data structure in Cassandra is now
> off-heap. It will be nice to display the memory used by BF's, Index
> Summaries, FS Buffers, Caches and Memtables (when enabled)
> This ticket is to track and display off heap memory allocation/used by
> running Cassandra process, this will help users to further tune the memory
> used by these data structures per CF.
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