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https://issues.apache.org/jira/browse/HBASE-16466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15987890#comment-15987890
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Maddineni Sukumar commented on HBASE-16466:
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Hi [[email protected]] ,
Added new patch for master branch and verified unit tests also.
Added one more validation in new patch against master branch i.e. We cannot use
recompare option and snapshots option both together as recompare is against
actual tables assuming some delays and retry may pass. and in case of
snapshots recompare against actual tables is not valid and at the same time
recompare against same snapshot wont change anything because snapshots are
immutable.
> 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: 1.3.1
>
> Attachments: HBASE-16466.branch-1.3.001.patch, HBASE-16466.v1.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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