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https://issues.apache.org/jira/browse/HBASE-14921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15383594#comment-15383594
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ramkrishna.s.vasudevan commented on HBASE-14921:
------------------------------------------------
I now got to which comment are you referring to wrt CELL_ARRAY_ENTRY. I checked
the RB.
bq.CELL_ARRAY_MAP_ENTRY = align(OBJECT + 2*REFERENCE + 2*Bytes.SIZEOF_INT);
When you see the CELL_ARRAY_MAP_ENTRY it should only have the reference to the
cell and one object right? The 2 ints and the byte[] will be accounted in the
KeyValue.heapSize(). Now if you add the ref and int here then the
KeyValue.heapSize will again add it. So the comment in RB is valid I feel.
> Memory optimizations
> --------------------
>
> Key: HBASE-14921
> URL: https://issues.apache.org/jira/browse/HBASE-14921
> Project: HBase
> Issue Type: Sub-task
> Affects Versions: 2.0.0
> Reporter: Eshcar Hillel
> Assignee: Anastasia Braginsky
> Attachments: CellBlocksSegmentInMemStore.pdf,
> CellBlocksSegmentinthecontextofMemStore(1).pdf, HBASE-14921-V01.patch,
> HBASE-14921-V02.patch, HBASE-14921-V03.patch, HBASE-14921-V04-CA-V02.patch,
> HBASE-14921-V04-CA.patch, HBASE-14921-V05-CAO.patch,
> InitialCellArrayMapEvaluation.pdf, IntroductiontoNewFlatandCompactMemStore.pdf
>
>
> Memory optimizations including compressed format representation and offheap
> allocations
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