Ted Yu created HBASE-9421: ----------------------------- Summary: Provide better error message when dropping non-existent namespace Key: HBASE-9421 URL: https://issues.apache.org/jira/browse/HBASE-9421 Project: HBase Issue Type: Bug Reporter: Ted Yu Priority: Minor
If a non-existent namespace is dropped, FileNotFoundException is thrown. There should be better error message like "namespace does not exist" {code} hbase(main):002:0> drop_namespace 'hi' ERROR: java.io.FileNotFoundException: File hdfs://h.com:8020/apps/hbase/data/data/hi does not exist. at org.apache.hadoop.hdfs.DistributedFileSystem.listStatusInternal(DistributedFileSystem.java:656) at org.apache.hadoop.hdfs.DistributedFileSystem.access$600(DistributedFileSystem.java:92) at org.apache.hadoop.hdfs.DistributedFileSystem$14.doCall(DistributedFileSystem.java:714) at org.apache.hadoop.hdfs.DistributedFileSystem$14.doCall(DistributedFileSystem.java:710) at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:78) at org.apache.hadoop.hdfs.DistributedFileSystem.listStatus(DistributedFileSystem.java:710) at org.apache.hadoop.fs.FileSystem.listStatus(FileSystem.java:1478) at org.apache.hadoop.fs.FileSystem.listStatus(FileSystem.java:1518) at org.apache.hadoop.hbase.util.FSUtils.getLocalTableDirs(FSUtils.java:1316) at org.apache.hadoop.hbase.util.FSTableDescriptors.getByNamespace(FSTableDescriptors.java:222) at org.apache.hadoop.hbase.master.HMaster.listTableDescriptorsByNamespace(HMaster.java:3121) at org.apache.hadoop.hbase.master.TableNamespaceManager.remove(TableNamespaceManager.java:158) at org.apache.hadoop.hbase.master.HMaster.deleteNamespace(HMaster.java:3106) at org.apache.hadoop.hbase.master.HMaster.deleteNamespace(HMaster.java:3000) at org.apache.hadoop.hbase.protobuf.generated.MasterAdminProtos$MasterAdminService$2.callBlockingMethod(MasterAdminProtos.java:32902) at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2147) at org.apache.hadoop.hbase.ipc.RpcServer$Handler.run(RpcServer.java:1854) Here is some help for this command: Drop the named namespace. The namespace must be empty. {code} -- 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