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From "Ted Yu (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 Thu, 27 Apr 2017 20:25:05 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15987590#comment-15987590
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Ted Yu commented on HBASE-16466:
--------------------------------

testVerifyReplicationWithSnapshotSupport fails locally - please fix the test in the next patch.
Check whether addTableCoprocessorJarsToClasspath() works as expected.

> 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
>
>
> 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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