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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9847) HDFS configuration without time unit name should accept friendly time units
Date Thu, 25 Feb 2016 09:30:18 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15166981#comment-15166981
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Chris Douglas commented on HDFS-9847:
-------------------------------------

bq. Adding week and year in hadoop-common is wanting to support to more differnet units in
subclassing(HBase, Hive , etc)rather just HDFS.

Is {{21d}} not sufficiently clear? What {{TimeUnit}} provides seems sufficient.

bq. There are some places using timeSecondInterval variable in int type, so I define getIntTimeSeconds
in Configuration. It nedd not cast type from long to int each time.

Adding new methods to parameterize {{getTimeDuration}} is unnecessary. The caller should cast
the result if it's losing precision.

> HDFS configuration without time unit name should accept friendly time units
> ---------------------------------------------------------------------------
>
>                 Key: HDFS-9847
>                 URL: https://issues.apache.org/jira/browse/HDFS-9847
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: 2.7.1
>            Reporter: Lin Yiqun
>            Assignee: Lin Yiqun
>         Attachments: HDFS-9847.001.patch, HDFS-9847.002.patch, timeduration-w-y.patch
>
>
> In HDFS-9821, it talks about the issue of leting existing keys use friendly units e.g.
60s, 5m, 1d, 6w etc. But there are som configuration key names contain time unit name, like
{{dfs.blockreport.intervalMsec}}, so we can make some other configurations which without time
unit name to accept friendly time units. The time unit  {{seconds}} is frequently used in
hdfs. We can updating this configurations first.



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