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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-19930) fix ImmutableMemStoreLAB#forceCopyOfBigCellInto
Date Mon, 05 Feb 2018 06:08:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-19930?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16352065#comment-16352065

ramkrishna.s.vasudevan commented on HBASE-19930:

So the doubt here is we created a set of immutable segments and that goes for a merge. So
while creating an immutable segment while flattening that time itself the big cell would have
been copied to MSLAB right? So will we have a cell that is not yet copied to immutable segment
and MSLAB till the merge happens?

> fix ImmutableMemStoreLAB#forceCopyOfBigCellInto
> -----------------------------------------------
>                 Key: HBASE-19930
>                 URL: https://issues.apache.org/jira/browse/HBASE-19930
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0-beta-1
>            Reporter: Gali Sheffi
>            Assignee: Gali Sheffi
>            Priority: Major
>         Attachments: HBASE-19930-V01.patch
> This issue is about fixing ImmutableMemStoreLAB#forceCopyOfBigCellInto.
> Following a comment in HBASE-19133 regarding a bug in ImmutableMemStoreLAB#forceCopyOfBigCellInto
(assuming this method is never called for an ImmutableMemStoreLAB, and just throwing an IllegalStateException
whenever called), the forceCopyOfBigCellInto method now performs the copy of big cells on
the first MSLABImpl in its mslabs linked-list.

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