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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18090) Improve TableSnapshotInputFormat to allow more multiple mappers per region
Date Fri, 06 Oct 2017 19:26:05 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16195109#comment-16195109
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Hudson commented on HBASE-18090:
--------------------------------

Results for branch HBASE-18467, done in 4 hr 24 min and counting
	[build #136 on builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/HBASE-18467/136/]:
FAILURE
----
details (if available):

(x) *{color:red}-1 overall{color}*
    Committer, please check your recent inclusion of a patch for this issue.

(x) {color:red}-1 general checks{color}
-- For more information [see general report|https://builds.apache.org/job/HBase%20Nightly/job/HBASE-18467/136//General_Nightly_Build_Report/]










(/) {color:green}+1 jdk8 checks{color}
-- For more information [see jdk8 report|https://builds.apache.org/job/HBase%20Nightly/job/HBASE-18467/136//JDK8_Nightly_Build_Report/]


(x) {color:red}-1 source release artifact{color}
-- See build output for details.



> Improve TableSnapshotInputFormat to allow more multiple mappers per region
> --------------------------------------------------------------------------
>
>                 Key: HBASE-18090
>                 URL: https://issues.apache.org/jira/browse/HBASE-18090
>             Project: HBase
>          Issue Type: Improvement
>          Components: mapreduce
>    Affects Versions: 3.0.0
>            Reporter: Mikhail Antonov
>            Assignee: xinxin fan
>             Fix For: 2.0.0-beta-1
>
>         Attachments: HBASE-18090-branch-1.3-v1.patch, HBASE-18090-branch-1.3-v2.patch,
HBASE-18090.branch-1.patch, HBASE-18090-V3-master.patch, HBASE-18090-V4-master.patch, HBASE-18090-V5-master.patch
>
>
> TableSnapshotInputFormat runs one map task per region in the table snapshot. This places
unnecessary restriction that the region layout of the original table needs to take the processing
resources available to MR job into consideration. Allowing to run multiple mappers per region
(assuming reasonably even key distribution) would be useful.



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