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Enis Soztutar commented on HBASE-9510: -------------------------------------- bq. what do you think of having the PB api throw the NotFound exception for getNS() but MasterServices.getNS() return null? I prefer the rpc to be thin wrappers around MasterServices. Adding the specific exception logic there, seems adding business logic just for the RPC. > Namespace operations should throw clean exceptions > -------------------------------------------------- > > Key: HBASE-9510 > URL: https://issues.apache.org/jira/browse/HBASE-9510 > Project: HBase > Issue Type: Bug > Components: master > Reporter: Enis Soztutar > Assignee: Enis Soztutar > Fix For: 0.98.0, 0.96.0 > > Attachments: hbase-9510_v1.patch, hbase-9510_v2.patch, > hbase-9510_v3.patch > > > Some of the namespace operations does not throw clean exceptions mimicking > table exceptions (TableNotFoundException, etc). > For example: > {code} > hbase(main):007:0> describe_namespace 'non_existing_namespace' > ERROR: java.io.IOException > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2117) > at > org.apache.hadoop.hbase.ipc.RpcServer$CallRunner.run(RpcServer.java:1816) > at > org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.consumerLoop(SimpleRpcScheduler.java:165) > at > org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.access$0(SimpleRpcScheduler.java:161) > at > org.apache.hadoop.hbase.ipc.SimpleRpcScheduler$1.run(SimpleRpcScheduler.java:113) > at java.lang.Thread.run(Thread.java:680) > Caused by: java.lang.NullPointerException > at > org.apache.hadoop.hbase.protobuf.ProtobufUtil.toProtoNamespaceDescriptor(ProtobufUtil.java:2138) > at > org.apache.hadoop.hbase.master.HMaster.getNamespaceDescriptor(HMaster.java:3029) > at > org.apache.hadoop.hbase.protobuf.generated.MasterAdminProtos$MasterAdminService$2.callBlockingMethod(MasterAdminProtos.java:32904) > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2079) > ... 5 more > {code} > We can clean up the exceptions thrown from ns commands. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira