Mubarak Seyed created FLUME-1905:
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             Summary: 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


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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