Steve Loughran created HDFS-4134:
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Summary: hadoop namenode & namenode entry points should return -1
exit code on bad arguments
Key: HDFS-4134
URL: https://issues.apache.org/jira/browse/HDFS-4134
Project: Hadoop HDFS
Issue Type: Bug
Components: name-node
Affects Versions: 1.0.4
Reporter: Steve Loughran
Priority: Minor
When you go {{hadoop namenode start}} (or some other bad argument to the
namenode), a usage message is generated -but the script returns 0.
This stops it being a robust command to invoke from other scripts -and is
inconsistent with the JT & TT entry points, that do return -1 on a usage message
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