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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9281) user_permission command encounters NullPointerException
Date Mon, 26 Aug 2013 18:09:55 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13750344#comment-13750344
] 

Nick Dimiduk commented on HBASE-9281:
-------------------------------------

{noformat}
-        table = (value.getTable != nil) ? org.apache.hadoop.hbase.util.Bytes::toStringBinary(value.getTable)
: ''
+        table = (value.getTable != nil) ? value.getTable.toString : ''
{noformat}

This should use {{value.getTable.getNameAsString}} instead of {{toString}} -- just in case
someone wants to make a more expressive toString later on.

Unrelated to your patch, all these {{!= nil}} checks should use the provided {{hasXXX}} interfaces
instead.
                
> user_permission command encounters NullPointerException
> -------------------------------------------------------
>
>                 Key: HBASE-9281
>                 URL: https://issues.apache.org/jira/browse/HBASE-9281
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.95.2
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>         Attachments: 9281.addendum, 9281-v1.txt
>
>
> As user hbase, user_permission command gave:
> {code}
> java.io.IOException: java.io.IOException
>   at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2185)
>   at org.apache.hadoop.hbase.ipc.RpcServer$Handler.run(RpcServer.java:1854)
> Caused by: java.lang.NullPointerException
>   at org.apache.hadoop.hbase.security.access.AccessControlLists.getUserTablePermissions(AccessControlLists.java:484)
>   at org.apache.hadoop.hbase.security.access.AccessController.getUserPermissions(AccessController.java:1341)
>   at org.apache.hadoop.hbase.protobuf.generated.AccessControlProtos$AccessControlService$1.getUserPermissions(AccessControlProtos.java:9949)
>   at org.apache.hadoop.hbase.protobuf.generated.AccessControlProtos$AccessControlService.callMethod(AccessControlProtos.java:10107)
>   at org.apache.hadoop.hbase.regionserver.HRegion.execService(HRegion.java:5121)
>   at org.apache.hadoop.hbase.regionserver.HRegionServer.execService(HRegionServer.java:3211)
>   at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:26851)
>   at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2147)
>   ... 1 more
>   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:106)
>   at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:95)
>   at org.apache.hadoop.hbase.protobuf.ProtobufUtil.getRemoteException(ProtobufUtil.java:235)
>   at org.apache.hadoop.hbase.protobuf.ProtobufUtil.execService(ProtobufUtil.java:1304)
>   at org.apache.hadoop.hbase.ipc.RegionCoprocessorRpcChannel$1.call(RegionCoprocessorRpcChannel.java:87)
>   at org.apache.hadoop.hbase.ipc.RegionCoprocessorRpcChannel$1.call(RegionCoprocessorRpcChannel.java:84)
>   at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:120)
>   at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:98)
>   at org.apache.hadoop.hbase.ipc.RegionCoprocessorRpcChannel.callExecService(RegionCoprocessorRpcChannel.java:90)
>   at org.apache.hadoop.hbase.ipc.CoprocessorRpcChannel.callBlockingMethod(CoprocessorRpcChannel.java:67)
>   at org.apache.hadoop.hbase.protobuf.generated.AccessControlProtos$AccessControlService$BlockingStub.getUserPermissions(AccessControlProtos.java:10304)
>   at org.apache.hadoop.hbase.protobuf.ProtobufUtil.getUserPermissions(ProtobufUtil.java:1974)
>   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>   at java.lang.reflect.Method.invoke(Method.java:597)
> ...
> Caused by: org.apache.hadoop.hbase.ipc.RemoteWithExtrasException(java.io.IOException):
java.io.IOException
>   at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2185)
>   at org.apache.hadoop.hbase.ipc.RpcServer$Handler.run(RpcServer.java:1854)
> Caused by: java.lang.NullPointerException
>   at org.apache.hadoop.hbase.security.access.AccessControlLists.getUserTablePermissions(AccessControlLists.java:484)
>   at org.apache.hadoop.hbase.security.access.AccessController.getUserPermissions(AccessController.java:1341)
>   at org.apache.hadoop.hbase.protobuf.generated.AccessControlProtos$AccessControlService$1.getUserPermissions(AccessControlProtos.java:9949)
>   at org.apache.hadoop.hbase.protobuf.generated.AccessControlProtos$AccessControlService.callMethod(AccessControlProtos.java:10107)
>   at org.apache.hadoop.hbase.regionserver.HRegion.execService(HRegion.java:5121)
>   at org.apache.hadoop.hbase.regionserver.HRegionServer.execService(HRegionServer.java:3211)
>   at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:26851)
>   at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2147)
>   ... 1 more
>   at org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1387)
>   at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1591)
>   at org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1648)
>   at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$BlockingStub.execService(ClientProtos.java:27327)
>   at org.apache.hadoop.hbase.protobuf.ProtobufUtil.execService(ProtobufUtil.java:1300)
>   ... 234 more
> {code}
> According to help for user_permission command:
> {code}
> For example:
>     hbase> user_permission
>     hbase> user_permission 'table1'
> {code}
> not specifying table name should be accepted.

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