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Phil Yang commented on HBASE-15325: ----------------------------------- Yes, the main work is at client side. And we need add BATCH_LIMIT_REACH to partialResultFormed() at server side. I'll draft a new patch based on our conclusion after HBASE-15378 pushed to each branch. They may conflict each other. > 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 > Components: dataloss, Scanners > 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-v6.1.txt, > HBASE-15325-v6.2.txt, HBASE-15325-v6.3.txt, HBASE-15325-v6.4.txt, > HBASE-15325-v6.5.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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)