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Posted to dev@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2014/09/10 01:36:28 UTC

[jira] [Created] (HBASE-11927) If java7, use zip crc

stack created HBASE-11927:
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             Summary: If java7, use zip crc
                 Key: HBASE-11927
                 URL: https://issues.apache.org/jira/browse/HBASE-11927
             Project: HBase
          Issue Type: Bug
            Reporter: stack
            Assignee: stack
             Fix For: 0.99.1


Up in hadoop they have this change. Let me publish some graphs to show that it makes a difference (CRC is a massive amount of our CPU usage in my profiling of an upload because of compacting, flushing, etc.).  We should also make use of native CRCings -- especially the 2.6 HDFS-6865 and ilk -- in hbase but that is another issue for now.



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