[jira] [Commented] (HBASE-17043) parallelize select() work in mob compaction

["Anoop Sam John (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-17043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15646410#comment-15646410 ] 

Anoop Sam John commented on HBASE-17043:
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Am not seeing code. But the select() logic is that complex to take more time? I agree on the #files being more. Still ..

> parallelize select() work in mob compaction
> -------------------------------------------
>
>                 Key: HBASE-17043
>                 URL: https://issues.apache.org/jira/browse/HBASE-17043
>             Project: HBase
>          Issue Type: Improvement
>          Components: mob
>    Affects Versions: 2.0.0
>            Reporter: huaxiang sun
>            Assignee: huaxiang sun
>            Priority: Minor
>
> Today in https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/PartitionedMobCompactor.java#L141,  the select() is single-threaded. Give a large number of files, it will take several seconds to finish the job. Will see how this work can be divided and speed up the processing.



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