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https://issues.apache.org/jira/browse/HBASE-21462?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wellington Chevreuil updated HBASE-21462:
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Affects Version/s: 3.0.0
2.1.5
> Add note for CopyTable section explained it does not perform a diff, but a
> full write from source to target
> -----------------------------------------------------------------------------------------------------------
>
> Key: HBASE-21462
> URL: https://issues.apache.org/jira/browse/HBASE-21462
> Project: HBase
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 3.0.0, 2.1.5
> Reporter: Wellington Chevreuil
> Assignee: Wellington Chevreuil
> Priority: Minor
> Fix For: 3.0.0
>
> Attachments: HBASE-21462-master.002.patch,
> HBASE-21462.master.001.patch
>
>
> Performance is a common issue with CopyTable is when the key/time range for
> the data to be copied is large because it basically scans all rows on the
> specified range, in the source and perform related puts on the source. We
> should add extra note explaining that on the reference guide, to help
> users/admins understand when to choose between the different tools/approaches
> for syncing clusters.
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