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https://issues.apache.org/jira/browse/FLUME-1905?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13577056#comment-13577056
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Mubarak Seyed commented on FLUME-1905:
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Related: [HBASE-4720 | https://issues.apache.org/jira/browse/HBASE-4720]
                
> Implement atomic update operation (checkAndPut) in HBaseSink
> ------------------------------------------------------------
>
>                 Key: FLUME-1905
>                 URL: https://issues.apache.org/jira/browse/FLUME-1905
>             Project: Flume
>          Issue Type: Improvement
>          Components: Sinks+Sources
>    Affects Versions: v1.3.1
>            Reporter: Mubarak Seyed
>              Labels: noob
>
> Flume can be used as a data freeway to stream data across datacenters and 
> data update/insert can happen conditionally (checking some qualifier value). 
> HBase client supports checkAndPut. Event header can have an expected 
> qualifier:value (row/column_family can be obtained from row)

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