Josh Elser created ACCUMULO-2937:
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             Summary: Cache columnvisibilities in replication pipeline
                 Key: ACCUMULO-2937
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2937
             Project: Accumulo
          Issue Type: Improvement
          Components: replication
            Reporter: Josh Elser
            Assignee: Josh Elser
            Priority: Minor


In the BatchWriterReplicationReplayer, we have to re-create the Mutation 
objects (see ACCUMULO-2925 for more details).

As such, we have to re-parse the bytes for the cv into a ColumnVisibility 
object for Mutation. Since those ColumnVisibilities are immutable, and 
expensive to create, we should cache them.



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