Vrushali C created YARN-4561:
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             Summary: Compaction coprocessor enhancements: On/Off, 
whitelisting, blacklisting
                 Key: YARN-4561
                 URL: https://issues.apache.org/jira/browse/YARN-4561
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Vrushali C
            Assignee: Vrushali C



YARN-4062 deals with the flush and compaction related coprocessor basic 
functionality. We also need to ensure we can turn compaction on/off as a whole 
(in case of dealing with production issues) as well as provide a way to allow 
for blacklisting and whitelisting of processing compaction for certain records.

For instance, we may want to compact only those records which belong to 
applications in that datacenter. This way we donot interfere with hbase 
replication causing coprocessors to process the same record in more than one dc 
at the same time.

Also, we might want to not compact/process certain records, perhaps whose 
rowkey matches a certain criteria.

Filing jira to track these enhancements




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