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https://issues.apache.org/jira/browse/HBASE-2104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12800859#action_12800859
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Robert Hofstra commented on HBASE-2104:
---------------------------------------
Yes, I use an iterator, I made an integration test using the a
MiniHBaseCluster, which contains some specific business logic, so I skip some
details
... insert values, no do a scan on it
ResultScanner scanner = table.getScanner(galleryTableScan);
// stop all region servers
FullMiniCluster.getMiniHBaseCluster().stopRegionServer(1);
FullMiniCluster.getMiniHBaseCluster().stopRegionServer(0);
try {
for (Result result : scanner) {
result.getValue( ...
}
Assert.fail("Expected an exception");
} catch (Exception ex) {
}
This test fails, I'am going to add a test to this issue without the specific
business logic.
I've patch yesterday the code of the ScannerCallable, that rethrows the
exception if its not handled by the other exception handling code, it works for
all our integrationtests but I don't know if its generic enough for a serious
patch.
> No exception thrown while during scanning no connection can be made to the
> regionserver
> ---------------------------------------------------------------------------------------
>
> Key: HBASE-2104
> URL: https://issues.apache.org/jira/browse/HBASE-2104
> Project: Hadoop HBase
> Issue Type: Bug
> Components: client
> Affects Versions: 0.20.1
> Reporter: Robert Hofstra
>
> When a regionservers is stopped (shutdown or crash) and on the same moment a
> client performs a scan on that regionserver no exception is thrown at client
> side nor a reconnect toanother regionsserver is tried.
> The ResultScanner.Iterator.hasNext ()just returns false, so the client
> assumes that there are no records anymore.
> In the ScannerCallable.call I notice that the java.net.ConnectionException is
> catched and a empyt Result array is returned.
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