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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TEPHRA-214) Provide a way to debug Transaction Pruning progress
Date Tue, 07 Feb 2017 04:09:42 GMT

    [ https://issues.apache.org/jira/browse/TEPHRA-214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15855286#comment-15855286

ASF GitHub Bot commented on TEPHRA-214:

GitHub user gokulavasan opened a pull request:


    (TEPHRA-214) Tool to debug the state and progress of Invalid List Pruning

    JIRA : https://issues.apache.org/jira/browse/TEPHRA-214
    Summary: Introduce a debug tool to fetch data that might help with debugging the status
and progress of invalid list transaction list pruning.
    Three commands are supported:
    timeregion <timestamp>  ==> Will return TimeRegions at or before timestamp in
    idleregions <numOfRegions> ==> Will return numOfRegions regions with lowest pruneUpperBounds.
If -1 is provided, all pruneUpperBounds are returned.
    pruneinfo <regionNameAsString> => Will return pruneUpperBound, compactionTimeStamp
of the 'regionNameAsString' region.
    This tool can be invoked with hbase classpath and tephra jars in the classpath.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/gokulavasan/incubator-tephra feature/tephra-pruning-debug

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #31
commit dc4357824e8e48973cc5109c649aa8303f077233
Author: Gokul Gunasekaran <gokul@cask.co>
Date:   2017-02-03T20:10:40Z

    (TEPHRA-214) Tool to debug the state and progress of Invalid List Pruning


> Provide a way to debug Transaction Pruning progress
> ---------------------------------------------------
>                 Key: TEPHRA-214
>                 URL: https://issues.apache.org/jira/browse/TEPHRA-214
>             Project: Tephra
>          Issue Type: Improvement
>            Reporter: Gokul Gunasekaran
>            Assignee: Gokul Gunasekaran
> It would be good to get information about what regions are lagging that might be useful
to debug why transaction pruning might not be happening. We do print debug information but
this method could be invoked on a need-basis outside of the regular pruning operation.

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