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From "Vrushali C (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4025) Deal with byte representations of Longs in writer code
Date Fri, 07 Aug 2015 04:48:45 GMT
Vrushali C created YARN-4025:

             Summary: Deal with byte representations of Longs in writer code
                 Key: YARN-4025
                 URL: https://issues.apache.org/jira/browse/YARN-4025
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Vrushali C
            Assignee: Vrushali C

Timestamps are being stored as Longs in hbase by the HBaseTimelineWriterImpl code. There seem
to be some places in the code where there are conversions between Long to byte[] to String
for easier argument passing between function calls. Then these values end up being converted
back to byte[] while storing in hbase. 

It would be better to pass around byte[] or the Longs themselves  as applicable. 

This may result in some api changes (store function) as well in adding a few more function
calls like getColumnQualifier which accepts a pre-encoded byte array. It will be in addition
to the existing api which accepts a String and the ColumnHelper to return a byte[] column
name instead of a String one. 

Filing jira to track these changes.

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