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Posted to common-dev@hadoop.apache.org by "Sanjay Radia (JIRA)" <ji...@apache.org> on 2007/12/17 22:45:43 UTC

[jira] Updated: (HADOOP-2444) Name shoud give the Datanodes a parameter that specifies the backoff time for initial block reports

     [ https://issues.apache.org/jira/browse/HADOOP-2444?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sanjay Radia updated HADOOP-2444:
---------------------------------

    Issue Type: Sub-task  (was: Improvement)
        Parent: HADOOP-2448

> Name shoud give the Datanodes a parameter that specifies the backoff time for initial block reports
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-2444
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2444
>             Project: Hadoop
>          Issue Type: Sub-task
>          Components: dfs
>            Reporter: Sanjay Radia
>
> HADOOP-2326 adds a random backoff for the initial block reports.  This however is static config parameter.
> It would be useful to have the NN tell the DN how much to backoff (i.e. rather than a single configuration parameter for the backoff). This would allow the system to adjust automatically to cluster size - smaller clusters will startup faster than larger clusters.

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