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Posted to issues@hbase.apache.org by "Youngjoon Kim (JIRA)" <ji...@apache.org> on 2016/02/16 14:10:18 UTC
[jira] [Created] (HBASE-15274) ClientSideRegionScanner's reaction
to Scan#setBatch is not consistent between HBase versions
Youngjoon Kim created HBASE-15274:
-------------------------------------
Summary: 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: 0.98.17, 1.1.3, 1.0.3
Reporter: Youngjoon Kim
Priority: Minor
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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