Exception handling in HBase is broken over client server connections
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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
Fix For: 0.14.0, 0.15.0
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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