Weiwei Yang created HDFS-12078:
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Summary: Add time unit to the description of property
dfs.namenode.stale.datanode.interval in hdfs-default.xml
Key: HDFS-12078
URL: https://issues.apache.org/jira/browse/HDFS-12078
Project: Hadoop HDFS
Issue Type: Improvement
Components: hdfs
Reporter: Weiwei Yang
Assignee: Weiwei Yang
Priority: Trivial
The description of property {{dfs.namenode.stale.datanode.interva}} in
hdfs-default.xml doesn't mention about the time unit, we should add that to
avoid confusing users.
I have reviewed all properties in hdfs-default.xml, this is the only one
property causes such confusion, user should be able to easily figure out the
appropriate time unit for properties by either
* Specified by property name, e.g dfs.namenode.full.block.report.lease.length.ms
* Specified by property value with time unit suffix, e.g
dfs.blockreport.initialDelay=0s
* Explained by description of the property, e.g
dfs.namenode.safemode.extension=3000, description: Determines extension of safe
mode in milliseconds ...
change to the property name and value will be an incompatible change, to
minimize the impact, propose to simply add the time unit in the description.
And this should be only one property needs the fix in hdfs-default.xml.
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