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Posted to issues@hbase.apache.org by "Duo Zhang (JIRA)" <ji...@apache.org> on 2017/02/06 03:22:41 UTC

[jira] [Created] (HBASE-17599) Also set the partial flag of Result to true if we reach the batch limit

Duo Zhang created HBASE-17599:
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             Summary: Also set the partial flag of Result to true if we reach the batch limit
                 Key: HBASE-17599
                 URL: https://issues.apache.org/jira/browse/HBASE-17599
             Project: HBase
          Issue Type: Sub-task
    Affects Versions: 2.0.0, 1.4.0
            Reporter: Duo Zhang
             Fix For: 2.0.0, 1.4.0


For now if we set scan.allowPartial(true), the partial result returned will have the partial flag set to true. But for scan.setBatch(xx), the partial result returned will not be marked as partial.

This is an Incompatible change, indeed. But I do not think it will introduce any issues as we just provide more informations to client. The old partial flag for batched scan is always false so I do not think anyone can make use of it.

This is very important for the limited scan to support partial results from server. If we get a Result which partial flag is false then we know we get the whole row. Otherwise we need to fetch one more row to see if the row key is changed which causes the logic to be more complicated.



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