Stephen Chu created HDFS-5468:
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Summary: CacheAdmin help command does not recognize commands
Key: HDFS-5468
URL: https://issues.apache.org/jira/browse/HDFS-5468
Project: Hadoop HDFS
Issue Type: Bug
Components: tools
Affects Versions: 3.0.0, 2.3.0
Reporter: Stephen Chu
Priority: Minor
Currently, the hdfs cacheadmin -help command will not recognize correct command
inputs:
{code}
[hdfs@hdfs-cache ~]# hdfs cacheadmin -help listPools
Sorry, I don't know the command 'listPools'.
Valid command names are:
-addDirective, -removeDirective, -removeDirectives, -listDirectives, -addPool,
-modifyPool, -removePool, -listPools, -help
[hdfs@hdfs-cache ~]# hdfs cacheadmin -help -listPools
Sorry, I don't know the command 'listPools'.
Valid command names are:
-addDirective, -removeDirective, -removeDirectives, -listDirectives, -addPool,
-modifyPool, -removePool, -listPools, -help
{code}
In the code, we strip the input command of leading hyphens, but then compare it
to the command names, which are all prefixed by a hyphen.
Also, cacheadmin -removeDirectives requires specifying a path with -path but
-path is not shown in the usage. We should fix this as well.
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