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From "Anastasia Braginsky (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16608) Introducing the ability to merge ImmutableSegments without copy-compaction or SQM usage
Date Thu, 15 Sep 2016 09:58:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15492903#comment-15492903
] 

Anastasia Braginsky commented on HBASE-16608:
---------------------------------------------

Hey, [~ram_krish] !!

Thank you for taking the look and making the run.
In the given patch, we are always merging the newly-pushed segment with the old one. Therefore,
policy never returns FLATTEN, because THRESHOLD_PIPELINE_SEGMENTS = 1.
So I wonder why do you say: "the flush is not flushing all the segments". It actually should...

Maybe what you experience is the effect of the flush waiting for the merging to be done. 
We also agree that we should better avoid this waiting and it will be eliminated in the next
patch.
Currently, (after HBASE-16229 is in)  the re-base takes me some long time. Mostly the testing
part. A lot of tests need to be fixed.
I hope to resolve all the issues in the coming days and to provide a new patch, which is including
the fixes for your code review.

Thanks,
Anastasia

> Introducing the ability to merge ImmutableSegments without copy-compaction or SQM usage
> ---------------------------------------------------------------------------------------
>
>                 Key: HBASE-16608
>                 URL: https://issues.apache.org/jira/browse/HBASE-16608
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Anastasia Braginsky
>            Assignee: Anastasia Braginsky
>         Attachments: HBASE-16417-V02.patch, HBASE-16417-V04.patch
>
>




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