Todd Lipcon created HADOOP-8608:
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Summary: Add Configuration API for parsing time durations
Key: HADOOP-8608
URL: https://issues.apache.org/jira/browse/HADOOP-8608
Project: Hadoop Common
Issue Type: Improvement
Components: conf
Affects Versions: 3.0.0
Reporter: Todd Lipcon
Hadoop has a lot of configurations which specify durations or intervals of
time. Unfortunately these different configurations have little consistency in
units - eg some are in milliseconds, some in seconds, and some in minutes. This
makes it difficult for users to configure, since they have to always refer back
to docs to remember the unit for each property.
The proposed solution is to add an API like {{Configuration.getTimeDuration}}
which allows the user to specify the units with a prefix. For example, "10ms",
"10s", "10m", "10h", or even "10d". For backwards-compatibility, if the user
does not specify a unit, the API can specify the default unit, and warn the
user that they should specify an explicit unit instead.
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