Improve error message for 0 datanode case
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Key: HADOOP-1068
URL: https://issues.apache.org/jira/browse/HADOOP-1068
Project: Hadoop
Issue Type: Improvement
Components: dfs
Affects Versions: 0.12.0
Reporter: Owen O'Malley
Assigned To: dhruba borthakur
Fix For: 0.13.0
A user got the error message:
org.apache.hadoop.ipc.RemoteException: java.io.IOException: failed to create
file /user/root/rand-input/part000000 on client localhost.localdomain
because target-length is 0, below MIN_REPLICATION (1)
A better error message for 0 targets would be something like:
The cluster has no datanodes for creating file /user/root/rand-input/part000000.
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