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From "Anastasia Braginsky (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18010) Connect CellChunkMap to be used for flattening in CompactingMemStore
Date Sun, 18 Jun 2017 08:14:01 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16053100#comment-16053100
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Anastasia Braginsky commented on HBASE-18010:
---------------------------------------------

Thank you everyone for the comments so far!

bq. When big cells, what happens? Where/how will big cells be addressed?

The "big" cells are those bigger than the size of the chunk and thus not allocated via MSLAB.
In CellChunkMap everything must be on a chunk. One possibility is to enlarge the chunk size.
Currently there is an assert on cells not allocated via MSLAB. This issue is going to be addressed
just after I finish with CellChunkMap integration. I have opened HBASE-18232 for that. This
JIRA is already big enough to add anything else to it.

bq. Did this issue get filed? Link it here if it did?

I didn't fix it here, because I was suggested to open a separate issue for that. However,
the fix is really small, [~stack], are you in favor of adding the fix in this JIRA?

> Connect CellChunkMap to be used for flattening in CompactingMemStore
> --------------------------------------------------------------------
>
>                 Key: HBASE-18010
>                 URL: https://issues.apache.org/jira/browse/HBASE-18010
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Anastasia Braginsky
>            Assignee: Anastasia Braginsky
>         Attachments: HBASE-18010-V04.patch
>
>
> The CellChunkMap helps to create a new type of ImmutableSegment, where the index (CellSet's
delegatee) is going to be CellChunkMap. No big cells or upserted cells are going to be supported
here.



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