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https://issues.apache.org/jira/browse/HBASE-16421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15628942#comment-15628942
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stack commented on HBASE-16421:
-------------------------------
On CellChunkMapRevived.pdf, what is this about: "When a cell is upserted
(append/increment op), we will not copy that cell to MSLAB. a. Anoop and Ram
are suggesting to keep a boolean that whether a Segment contains a cell which
is not copied to MSLAB and then intermix CellChunkMap and CellArrayMap"
I think this will be a perf killer: "For scans we need to create instances of
cells every time we recreate the cell from the index. Time consuming/GC issues"
We can't cache instances? (Can't cache references offheap for sure). Need to
test.
Otherwise, doc. looks good.
> Introducing the CellChunkMap as a new additional index variant in the MemStore
> ------------------------------------------------------------------------------
>
> Key: HBASE-16421
> URL: https://issues.apache.org/jira/browse/HBASE-16421
> Project: HBase
> Issue Type: Umbrella
> Reporter: Anastasia Braginsky
> Attachments: CellChunkMapRevived.pdf,
> IntroductiontoNewFlatandCompactMemStore.pdf
>
>
> Follow up for HBASE-14921. This is going to be the umbrella JIRA to include
> all the parts of integration of the CellChunkMap to the MemStore.
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