[
https://issues.apache.org/jira/browse/HBASE-16421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15761031#comment-15761031
]
ramkrishna.s.vasudevan commented on HBASE-16421:
------------------------------------------------
bq.1. We need evaluation of how reasonable it would be to use CellChunkMap with
the scans due to the GC. It is going to be accomplished soon by
ramkrishna.s.vasudevan and we will continue by now assuming that CellChunkMaps
are valid anyway.
WE have an internal branch which was doing the Pipeline flushing and creating n
number of segments per snapshot. I could use that for now to test this.
But if you need to test in latest trunk - can you prepare a patch with
CellChunkMap and integrate it with the current trunk? I can give some patches
on the #2 subtask for creating chunk id and having a cell with chunk id.
Atleast from our earlier reports one thing is sure that we do create garbage
during flush for the cell creation but the overall impact of GC was much
better. So I think we are benefited there, but with the scan perf I think we
have not done any tests. For now I can do it with our internal branch but not
on latest trunk.
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
