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https://issues.apache.org/jira/browse/HBASE-15274?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Enis Soztutar updated HBASE-15274:
----------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 0.98.18
1.0.4
Status: Resolved (was: Patch Available)
I have pushed this to 0.98 and branch-1.0. Thanks Youngjoon Kim for the patch.
> ClientSideRegionScanner's reaction to Scan#setBatch is not consistent between
> HBase versions
> --------------------------------------------------------------------------------------------
>
> Key: HBASE-15274
> URL: https://issues.apache.org/jira/browse/HBASE-15274
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.0.3, 1.1.3, 0.98.17
> Reporter: Youngjoon Kim
> Assignee: Youngjoon Kim
> Priority: Minor
> Fix For: 1.0.4, 0.98.18
>
> Attachments: HBASE-15274-0.98.patch, HBASE-15274-branch-1.0.patch
>
>
> In 1.1.3, ClientSideRegionScanner calls RegionScannerImpl#next() with single
> argument, so it honors Scan#setBatch(through defaultScannerContext in
> RegionScannerImpl).
> {code}
> // 1.1.3
> public class ClientSideRegionScanner extends AbstractClientScanner {
> ...
> @Override
> public Result next() throws IOException {
> values.clear();
> scanner.nextRaw(values);
> ...
> {code}
>
> \\
> But in 1.0.3 and 0.98.17, ClientSideRegionScanner calls
> RegionScannerImpl#next() with limit=-1, so it ignores Scan#setBatch.
> {code}
> // 1.0.3 and 0.98.17
> public class ClientSideRegionScanner extends AbstractClientScanner {
> ...
> @Override
> public Result next() throws IOException {
> values.clear();
> scanner.nextRaw(values, -1); // pass -1 as limit so that we see the whole
> row.
> ...
> {code}
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