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https://issues.apache.org/jira/browse/HBASE-17211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15729245#comment-15729245
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Hudson commented on HBASE-17211:
--------------------------------
FAILURE: Integrated in Jenkins build HBase-0.98-matrix #423 (See
[https://builds.apache.org/job/HBase-0.98-matrix/423/])
HBASE-17211 Add more details in log when UnknownScannerException thrown
(apurtell: rev b06b03b703e456de960bb8f5c05917bbbdaa72d1)
* (edit)
hbase-client/src/main/java/org/apache/hadoop/hbase/client/ScannerCallable.java
> Add more details in log when UnknownScannerException thrown in ScannerCallable
> ------------------------------------------------------------------------------
>
> Key: HBASE-17211
> URL: https://issues.apache.org/jira/browse/HBASE-17211
> Project: HBase
> Issue Type: Improvement
> Reporter: Yu Li
> Assignee: Yu Li
> Priority: Minor
> Fix For: 2.0.0, 1.4.0, 0.98.24
>
> Attachments: HBASE-17211.patch
>
>
> Currently if we try to close an already closed scanner, we may see below
> warning log which is useless for debugging:
> {noformat}
> 2016-06-23 01:21:21,101 WARN [main]
> org.apache.hadoop.hbase.client.ScannerCallable: Ignore, probably already
> closed
> org.apache.hadoop.hbase.UnknownScannerException:
> org.apache.hadoop.hbase.UnknownScannerException: Name: 18706910, already
> closed?
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2304)
> at
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:32205)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2188)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:102)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:133)
> at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:108)
> {noformat}
> and here we propose to add more details about the scan in log.
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