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From "Jean-Daniel Cryans (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5415) FSTableDescriptors should handle random folders in hbase.root.dir better
Date Thu, 23 Feb 2012 22:53:49 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5415?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jean-Daniel Cryans updated HBASE-5415:
--------------------------------------

    Attachment: HBASE-5415.patch

This patch handles it by just printing a WARN, the side effect is that this method doesn't
throw TableExistsException anymore (which didn't make sense anyway) so I cleaned up a bunch
of code.
                
> FSTableDescriptors should handle random folders in hbase.root.dir better
> ------------------------------------------------------------------------
>
>                 Key: HBASE-5415
>                 URL: https://issues.apache.org/jira/browse/HBASE-5415
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.92.0
>            Reporter: Jean-Daniel Cryans
>            Priority: Critical
>             Fix For: 0.92.1, 0.94.0
>
>         Attachments: HBASE-5415.patch
>
>
> I faked an upgrade on a test cluster using our dev data so I had to distcp the data between
the two clusters, but after starting up and doing the migration and whatnot the web UI didn't
show any table. The reason was in the master's log:
> {quote}
> org.apache.hadoop.hbase.TableExistsException: No descriptor for _distcp_logs_e0ehek
>         at org.apache.hadoop.hbase.util.FSTableDescriptors.get(FSTableDescriptors.java:164)
>         at org.apache.hadoop.hbase.util.FSTableDescriptors.getAll(FSTableDescriptors.java:182)
>         at org.apache.hadoop.hbase.master.HMaster.getHTableDescriptors(HMaster.java:1554)
>         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)
>         at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:364)
>         at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1326)
> {quote}
> I don't think we need to show a full stack (just a WARN maybe), this shouldn't kill the
request (still see tables in the web UI), and why is that a TableExistsException?

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