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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17081) Flush the entire CompactingMemStore content to disk
Date Sun, 18 Dec 2016 01:02:33 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15757921#comment-15757921
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Duo Zhang commented on HBASE-17081:
-----------------------------------

Busy these days so I do not have much time to help debugging the bugs directly.

In TestAsyncGetMultiThread, we will put 1000 rows to a table with 9 regions. And then use
several background threads to get the values and do some split and move works. The failure
is NPE when getting from a Result object which means the row is missing so I think the problem
maybe the flush when splitting or moving. Hope this could help.

Thanks.

> Flush the entire CompactingMemStore content to disk
> ---------------------------------------------------
>
>                 Key: HBASE-17081
>                 URL: https://issues.apache.org/jira/browse/HBASE-17081
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Anastasia Braginsky
>            Assignee: Anastasia Braginsky
>         Attachments: HBASE-15787_8.patch, HBASE-17081-V01.patch, HBASE-17081-V02.patch,
HBASE-17081-V03.patch, HBASE-17081-V04.patch, HBASE-17081-V05.patch, HBASE-17081-V06.patch,
HBASE-17081-V06.patch, HBASE-17081-V07.patch, HBaseMeetupDecember2016-V02.pptx, Pipelinememstore_fortrunk_3.patch
>
>
> Part of CompactingMemStore's memory is held by an active segment, and another part is
divided between immutable segments in the compacting pipeline. Upon flush-to-disk request
we want to flush all of it to disk, in contrast to flushing only tail of the compacting pipeline.



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