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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16143) Change MemstoreScanner constructor to accept List<KeyValueScanner>
Date Wed, 29 Jun 2016 23:34:33 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15356085#comment-15356085
] 

Hudson commented on HBASE-16143:
--------------------------------

FAILURE: Integrated in HBase-Trunk_matrix #1138 (See [https://builds.apache.org/job/HBase-Trunk_matrix/1138/])
HBASE-16143 Change MemstoreScanner constructor to accept (ramkrishna: rev 9b1ecb31f0fdab6208d376fd06ebecdc1d916812)
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MemStoreCompactor.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/AbstractMemStore.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/SegmentScanner.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/CompactingMemStore.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MemStoreScanner.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/DefaultMemStore.java


> Change MemstoreScanner constructor to accept List<KeyValueScanner>
> ------------------------------------------------------------------
>
>                 Key: HBASE-16143
>                 URL: https://issues.apache.org/jira/browse/HBASE-16143
>             Project: HBase
>          Issue Type: Sub-task
>    Affects Versions: 2.0.0
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>            Priority: Minor
>             Fix For: 2.0.0
>
>         Attachments: HBASE-16143.patch, HBASE-16143_1.patch, HBASE-16143_2.patch
>
>
> A minor change that helps in creating a memstore that avoids the compaction process and
just allows to creates a pipeline of segments and on flush directly reads the segments in
the pipeline and flushes it out after creating a snapshot of the pipeline. Based on test results
and updated patch on HBASE-14921 (to be provided) will see how much flattening helps us.



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