Fei Hui created HDFS-14975:
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Summary: Add CR for SetECPolicyCommand usage
Key: HDFS-14975
URL: https://issues.apache.org/jira/browse/HDFS-14975
Project: Hadoop HDFS
Issue Type: Improvement
Affects Versions: 3.3.0
Reporter: Fei Hui
*bin/hdfs ec -help* output the following message
{quote}
[-listPolicies]
Get the list of all erasure coding policies.
[-addPolicies -policyFile <file>]
Add a list of user defined erasure coding policies.
<file> The path of the xml file which defines the EC policies to add
[-getPolicy -path <path>]
Get the erasure coding policy of a file/directory.
<path> The path of the file/directory for getting the erasure coding policy
[-removePolicy -policy <policy>]
Remove an user defined erasure coding policy.
<policy> The name of the erasure coding policy
[-setPolicy -path <path> [-policy <policy>] [-replicate]]
Set the erasure coding policy for a file/directory.
<path> The path of the file/directory to set the erasure coding policy
<policy> The name of the erasure coding policy
-replicate force 3x replication scheme on the directory
-replicate and -policy are optional arguments. They cannot been used at the
same time
[-unsetPolicy -path <path>]
Unset the erasure coding policy for a directory.
<path> The path of the directory from which the erasure coding policy will be
unset.
[-listCodecs]
Get the list of supported erasure coding codecs and coders.
A coder is an implementation of a codec. A codec can have different
implementations, thus different coders.
The coders for a codec are listed in a fall back order.
[-enablePolicy -policy <policy>]
Enable the erasure coding policy.
<policy> The name of the erasure coding policy
[-disablePolicy -policy <policy>]
Disable the erasure coding policy.
<policy> The name of the erasure coding policy
[-verifyClusterSetup [-policy <policy>...<policy>]]
Verify if the cluster setup can support all enabled erasure coding policies. If
optional parameter -policy is specified, verify if the cluster setup can
support the given policy.
{quote}
The output format is not so good to users
We should add CR between SetECPolicyCommand and UnsetECPolicyCommand like other
commands
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