[jira] [Created] (HBASE-7381) Lightweight data transfer for Class Result

["Cheng Hao (JIRA)" <ji...@apache.org>]

Cheng Hao created HBASE-7381:
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             Summary: Lightweight data transfer for Class Result
                 Key: HBASE-7381
                 URL: https://issues.apache.org/jira/browse/HBASE-7381
             Project: HBase
          Issue Type: Improvement
          Components: Client
            Reporter: Cheng Hao
            Priority: Trivial


Currently,the data transferring between 2 Result objects in the same process, will cause additional/unnecessary data parsing & copying; as we have to do that via "Writables.copyWritable(result1, result2)", which internally is serialization, data copying, and de-serialization.

The use case are quite common when integrated with Hadoop job running;
The protocol org.apache.hadoop.mapred.RecordReader defined in Hadoop, provides 3 interfaces:
1) K createKey();
2) V createValue();
3) boolean next(K key, V value) throws IOException;

In the 3rd method implementation, most likely requires the value (should be Result object) to be filled, with the Result object from HBase.


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