Siyao Meng created HDDS-4849:
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Summary: Improve Ozone admin shell decommission and recommission
command user experience
Key: HDDS-4849
URL: https://issues.apache.org/jira/browse/HDDS-4849
Project: Apache Ozone
Issue Type: Sub-task
Components: Ozone CLI
Reporter: Siyao Meng
Assignee: Siyao Meng
1. Currently, entering `ozone admin datanode decommission` command alone
doesn't give any feedback.
w/ patch:
{code}
bash-4.2$ ozone admin datanode decommission
Incomplete command
Usage: ozone admin datanode decommission [-hV] [--scm=<scm>] [<hosts>...]
Decommission a datanode
[<hosts>...] List of fully qualified host names
-h, --help Show this help message and exit.
--scm=<scm> The destination scm (host:port)
-V, --version Print version information and exit.
{code}
2. When decommission command is executed successfully, it lacks feedback on the
client (it does log on the server side though).
w/ patch:
{code}
bash-4.2$ ozone admin datanode decommission 172.18.0.7 172.18.0.2
Started decommissioning datanodes:
172.18.0.7
172.18.0.2
{code}
3. Improve decommission failure message due to host/port resolution.
w/ patch:
{code}
bash-4.2$ ozone admin datanode decommission 172.18.0.71
Host 172.18.0.71 (172.18.0.71) is not running any datanodes registered with
SCM. Please check the host name.
bash-4.2$ ozone admin datanode decommission 172.18.0.7:9999
Host 172.18.0.7:9999 is running a datanode registered with SCM, but the port
number doesn't match. Please check the port number.
{code}
Same to recommission command counterparts.
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