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https://issues.apache.org/jira/browse/HBASE-13532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15283404#comment-15283404
]
Hudson commented on HBASE-13532:
--------------------------------
FAILURE: Integrated in HBase-Trunk_matrix #918 (See
[https://builds.apache.org/job/HBase-Trunk_matrix/918/])
HBASE-13532 Make UnknownScannerException less scary by giving more
(matteo.bertozzi: rev 60e19f60a9767db6b145cf9884d2295412baffe0)
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java
> Make UnknownScannerException logging less scary
> -----------------------------------------------
>
> Key: HBASE-13532
> URL: https://issues.apache.org/jira/browse/HBASE-13532
> Project: HBase
> Issue Type: Improvement
> Reporter: Appy
> Assignee: Appy
> Priority: Trivial
> Fix For: 2.0.0, 1.3.0, 1.2.2, 1.1.6
>
> Attachments: HBASE-13532-branch-1.patch, HBASE-13532-master.patch,
> HBASE-13532.patch
>
>
> A customer reported seeing client-side UnknownScannerExceptions after an
> HBase upgrade/restart. Restarting a RS will expire leases on the server side.
> So, given that there was no actual problem and everything was working as it
> should, reworking this exception for more appropriate logging.
> {code}
> org.apache.hadoop.hbase.UnknownScannerException:
> org.apache.hadoop.hbase.UnknownScannerException: Name: 10092964, already
> closed?
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.scan(HRegionServer.java:3043)
>
> at
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29497)
>
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2012)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:98)
> at
> org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.consumerLoop(SimpleRpcScheduler.java:160)
>
> at
> org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.access$000(SimpleRpcScheduler.java:38)
>
> at
> org.apache.hadoop.hbase.ipc.SimpleRpcScheduler$1.run(SimpleRpcScheduler.java:110)
>
> at java.lang.Thread.run(Thread.java:724)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
>
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>
> at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
> at
> org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106)
>
> at
> org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:95)
>
> at
> org.apache.hadoop.hbase.protobuf.ProtobufUtil.getRemoteException(ProtobufUtil.java:284)
>
> at
> org.apache.hadoop.hbase.client.ScannerCallable.close(ScannerCallable.java:287)
>
> at
> org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:153)
> at
> org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:57)
> at
> org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:114)
>
> at
> org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:90)
>
> at org.apache.hadoop.hbase.client.ClientScanner.close(ClientScanner.java:431)
> at
> com.squareup.moco.persistence.TransactionTable.scan(TransactionTable.java:207)
>
> at
> com.squareup.moco.persistence.TransactionTable$$EnhancerByGuice$$a12c1766.CGLIB$scan$9(<generated>)
>
> at
> com.squareup.moco.persistence.TransactionTable$$EnhancerByGuice$$a12c1766$$FastClassByGuice$$606c8773.invoke(<generated>)
>
> at
> com.google.inject.internal.cglib.proxy.$MethodProxy.invokeSuper(MethodProxy.java:228)
>
> at
> com.google.inject.internal.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:75)
>
> at
> com.squareup.common.metrics.TimedHistogramInterceptor.invoke(TimedHistogramInterceptor.java:29)
>
> at
> com.google.inject.internal.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:75)
>
> at
> com.google.inject.internal.InterceptorStackCallback.intercept(InterceptorStackCallback.java:55)
>
> at
> com.squareup.moco.persistence.TransactionTable$$EnhancerByGuice$$a12c1766.scan(<generated>)
>
> at
> com.squareup.moco.persistence.TransactionTable$1.run(TransactionTable.java:180)
>
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>
> at java.lang.Thread.run(Thread.java:724)
> Caused by:
> org.apache.hadoop.hbase.ipc.RemoteWithExtrasException(org.apache.hadoop.hbase.UnknownScannerException):
> org.apache.hadoop.hbase.UnknownScannerException: Name: 10092964, already
> closed?
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.scan(HRegionServer.java:3043)
>
> at
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29497)
>
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2012)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:98)
> at
> org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.consumerLoop(SimpleRpcScheduler.java:160)
>
> at
> org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.access$000(SimpleRpcScheduler.java:38)
>
> at
> org.apache.hadoop.hbase.ipc.SimpleRpcScheduler$1.run(SimpleRpcScheduler.java:110)
>
> at java.lang.Thread.run(Thread.java:724)
> {code}
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