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Posted to common-dev@hadoop.apache.org by "Robert Chansler (JIRA)" <ji...@apache.org> on 2008/03/25 04:03:25 UTC
[jira] Updated: (HADOOP-2444) NameNnode 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 ]
Robert Chansler updated HADOOP-2444:
------------------------------------
Fix Version/s: (was: 0.17.0)
> NameNnode 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 Core
> 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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