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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-9421) Provide better error message when dropping non-existent namespace
Date Wed, 04 Sep 2013 15:01:57 GMT

     [ https://issues.apache.org/jira/browse/HBASE-9421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ted Yu updated HBASE-9421:
--------------------------

    Fix Version/s:     (was: 0.96.0)
                   0.98.0
     Hadoop Flags: Reviewed

Integrated to trunk.

Thanks for the review, Anoop.
                
> 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
>            Assignee: Ted Yu
>            Priority: Minor
>             Fix For: 0.98.0
>
>         Attachments: 9421-v1.txt
>
>
> 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}

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