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From "Jim Kellerman (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1589) Exception handling in HBase is broken over client server connections
Date Thu, 12 Jul 2007 22:38:05 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jim Kellerman updated HADOOP-1589:
----------------------------------

    Status: Open  (was: Patch Available)

> Exception handling in HBase is broken over client server connections
> --------------------------------------------------------------------
>
>                 Key: HADOOP-1589
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1589
>             Project: Hadoop
>          Issue Type: Bug
>          Components: contrib/hbase
>    Affects Versions: 0.14.0, 0.15.0
>            Reporter: Jim Kellerman
>            Assignee: Jim Kellerman
>             Fix For: 0.14.0, 0.15.0
>
>         Attachments: patch.txt, patch.txt
>
>
> When an exception is thrown in a server process, the Hadoop Server class passes the exception
class name and error message across the wire to the Hadoop Client. The Hadoop Client then
throws a RemoteException with the class name and error message as part of its payload. Thus
an interface like:
>   public HRegionInfo getRegionInfo(final Text regionName) throws NotServingRegionException;
> actually throws a RemoteException on the client with org.apache.hadoop.hbase.NotServingRegionException
as the class name and the remote message as the message.
> Anywhere in the HBase code where we try to catch NotServingRegionException will thus
never see it if it came across an RPC.

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