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Posted to hdfs-dev@hadoop.apache.org by "Juan Yu (JIRA)" <ji...@apache.org> on 2014/06/06 02:50:01 UTC

[jira] [Created] (HDFS-6493) Propose to change "dfs.namenode.startup.delay.block.deletion" to second instead of millisecond

Juan Yu created HDFS-6493:
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             Summary: Propose to change "dfs.namenode.startup.delay.block.deletion" to second instead of millisecond
                 Key: HDFS-6493
                 URL: https://issues.apache.org/jira/browse/HDFS-6493
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Juan Yu
            Assignee: Juan Yu
            Priority: Trivial


Based on the discussion in https://issues.apache.org/jira/browse/HDFS-6186, the delay will be at least 30 minutes or even hours. it's not very user friendly to use milliseconds when it's likely measured in hours.
I suggest to make the following change
1. change the unit of this config to second
2. rename the config key from "dfs.namenode.startup.delay.block.deletion.ms" to "dfs.namenode.startup.delay.block.deletion.sec"
3. add the default value to hdfs-default.xml, what's the reasonable value, 30 minutes, one hour?






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