Profiling indicates that ThriftUtilities.rowResultFromHBase is quite inefficient
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Key: HBASE-2914
URL: https://issues.apache.org/jira/browse/HBASE-2914
Project: HBase
Issue Type: Bug
Affects Versions: 0.89.20100621, 0.20.6
Reporter: ryan rawson
Fix For: 0.90.0
Attachments: HBASE-2914.patch
Profiling of ThriftServer here at SU has indicated that the call
ThriftUtilities.rowResultFromHBase() is quite inefficient. It first calls
Result.getRowResult() which is inefficient and slow. Instead by reimplementing
to create the TRowResult (the thrift return type) straight from the KeyValue[]
array the performance boost is substantial, reducing time serializing the
results. In my profiling the time spent in scannerGetList() went from 1100ms
to 108ms on similar test runs.
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