[jira] [Updated] (CASSANDRA-7897) NodeTool command to display OffHeap memory usage

["Vijay (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-7897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vijay updated CASSANDRA-7897:
-----------------------------
    Attachment: 0001-CASSANDRA-7897.patch

Attached is a simple patch for 
#nodetool memstats
{quote}
Off-heap memory used for Keyspace1/Standard1

	Bloom Filter	: 428.53 KB
	Index Summary	: 59.28 KB
	Memtable size	: 0 bytes

Other Off-heap (Total)

	All Row Cache size	: 0 bytes
	All Memtable size	: 0 bytes

Other On-heap (Total)

	All Key Cache size	: 1.21 KB
	All Memtable size	: 45.77 MB
{quote}

> 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: Vijay
>            Priority: Minor
>         Attachments: 0001-CASSANDRA-7897.patch
>
>
> 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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