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From "Maddineni Sukumar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16466) HBase snapshots support in VerifyReplication tool to reduce load on live HBase cluster with large tables
Date Sat, 29 Jul 2017 09:42:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16106085#comment-16106085
] 

Maddineni Sukumar commented on HBASE-16466:
-------------------------------------------

Hi [~openinx]

I never tested Yarn layer alone in different cluster than source or peer,  because  we always
run VerifyReplication within source.
Please file a separate Jira if you think its valid use case and its an issue.

> HBase snapshots support in VerifyReplication tool to reduce load on live HBase cluster
with large tables
> --------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-16466
>                 URL: https://issues.apache.org/jira/browse/HBASE-16466
>             Project: HBase
>          Issue Type: Improvement
>          Components: hbase
>    Affects Versions: 0.98.21
>            Reporter: Sukumar Maddineni
>            Assignee: Maddineni Sukumar
>             Fix For: 2.0.0
>
>         Attachments: HBASE-16466.branch-1.3.001.patch, HBASE-16466.v1.patch, HBASE-16466.v2.patch,
HBASE-16466.v3.patch, HBASE-16466.v4.patch, HBASE-16466.v5.patch
>
>
> As of now VerifyReplicatin tool is running using normal HBase scanners. If you  want
to run VerifyReplication multiple times on a production live cluster with large tables then
it creates extra load on HBase layer. So if we implement snapshot based support then both
in source and target we can read data from snapshots which reduces load on HBase



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