[jira] [Updated] (HBASE-15325) ResultScanner allowing partial result will miss the rest of the row if the region is moved between two rpc requests

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

     [ https://issues.apache.org/jira/browse/HBASE-15325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Phil Yang updated HBASE-15325:
------------------------------
    Attachment: HBASE-15325-v6.txt

Fix typo according to review and add more assert on isPartial to detect bug. Test can pass in my own computer but fail in PreCommit-HBASE-Build.

> ResultScanner allowing partial result will miss the rest 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: 1.2.0, 1.1.3
>            Reporter: Phil Yang
>            Assignee: Phil Yang
>            Priority: Critical
>         Attachments: 15325-test.txt, HBASE-15325-v1.txt, HBASE-15325-v2.txt, HBASE-15325-v3.txt, HBASE-15325-v5.txt, HBASE-15325-v6.txt
>
>
> 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 end of this row. So the rest cells of the row of last result will be missing.



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