Add the ability to pass additional information for slow query logging
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                 Key: HBASE-5609
                 URL: https://issues.apache.org/jira/browse/HBASE-5609
             Project: HBase
          Issue Type: New Feature
          Components: client, ipc
            Reporter: Michael Drzal
            Assignee: Michael Drzal
            Priority: Minor


HBase-4117 added the ability to log information about queries that returned too 
much data or ran for too long.  There is some information written as a 
fingerprint that can be used to tell what table/column families/... are 
affected.  I would like to extend this functionality to allow the client to 
insert an identifier into the operation that gets output in the log.  The idea 
behind this would be that if there were N places in the client application that 
touched a given table in a certain way, you could quickly narrow things down by 
inserting a className:functionName or similar identifier.  I'm fully willing to 
go back on this if people think that it isn't a problem in real life and it 
would just add complexity to the code.

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