[jira] [Created] (HBASE-15325) ResultScanner allowing partial result will reset to the start of the row if the region is moved between two rpc requests

["Phil Yang (JIRA)" <ji...@apache.org>]

Phil Yang created HBASE-15325:
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             Summary: ResultScanner allowing partial result will reset to the start of the row if the region is moved between two rpc requests
                 Key: HBASE-15325
                 URL: https://issues.apache.org/jira/browse/HBASE-15325
             Project: HBase
          Issue Type: Bug
    Affects Versions: 1.1.3
            Reporter: Phil Yang
            Assignee: Phil Yang
            Priority: Critical


HBASE-11544 allow scan rpc return partial of a row to reduce memory usage for one rpc request. And client can setAllowPartial or setBatch to get several cells in a row instead of the whole row.

However, the status of the scanner is saved on server and we need this to get the next part if there is a partial result before. If we move the region to another RS, client will get a NotServingRegionException and open a new scanner to the new RS which will be regarded as a new scan from the start of this row. So we will see the cells which have been seen before.



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