Jean-Daniel Cryans created HBASE-9313:
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Summary: NamespaceJanitor is spammy when the namespace table moves
Key: HBASE-9313
URL: https://issues.apache.org/jira/browse/HBASE-9313
Project: HBase
Issue Type: Improvement
Affects Versions: 0.95.2
Reporter: Jean-Daniel Cryans
Fix For: 0.98.0, 0.96.0
Although region movements are part of a healthy HBase lifestyle, the
NamespaceJanitor WARNs about it:
{noformat}
2013-08-22 22:35:48,872 WARN [NamespaceJanitor-jdec2hbase0403-1:60000]
org.apache.hadoop.hbase.client.RpcRetryingCaller: Call exception, tries=0,
retries=350, retryTime=-4ms
org.apache.hadoop.hbase.NotServingRegionException:
org.apache.hadoop.hbase.NotServingRegionException: Region is not online:
640d4b4d9432f23f1638700217d34764
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at
org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:95)
at
org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:79)
at
org.apache.hadoop.hbase.protobuf.ProtobufUtil.getRemoteException(ProtobufUtil.java:235)
at
org.apache.hadoop.hbase.client.ScannerCallable.openScanner(ScannerCallable.java:300)
at
org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:148)
at
org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:57)
at
org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:120)
at
org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:98)
at
org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:239)
at
org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:153)
at
org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:100)
at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:696)
at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:707)
at
org.apache.hadoop.hbase.master.TableNamespaceManager.list(TableNamespaceManager.java:185)
at
org.apache.hadoop.hbase.master.HMaster.listNamespaceDescriptors(HMaster.java:3149)
at
org.apache.hadoop.hbase.master.NamespaceJanitor.removeOrphans(NamespaceJanitor.java:102)
at
org.apache.hadoop.hbase.master.NamespaceJanitor.chore(NamespaceJanitor.java:86)
at org.apache.hadoop.hbase.Chore.run(Chore.java:80)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.hadoop.hbase.ipc.RemoteWithExtrasException:
org.apache.hadoop.hbase.NotServingRegionException: Region is not online:
640d4b4d9432f23f1638700217d34764
at
org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:2565)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:3927)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.scan(HRegionServer.java:3004)
at
org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:26847)
at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2156)
at
org.apache.hadoop.hbase.ipc.RpcServer$Handler.run(RpcServer.java:1861)
at org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1426)
at
org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1630)
at
org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1687)
at
org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$BlockingStub.scan(ClientProtos.java:27303)
at
org.apache.hadoop.hbase.client.ScannerCallable.openScanner(ScannerCallable.java:291)
... 15 more
{noformat}
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