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https://issues.apache.org/jira/browse/HADOOP-3486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sanjay Radia updated HADOOP-3486:
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Description:
HADOOP-2326 added a new config parameter for the initial block report that gets
sent after DataNode registration.
The default value for this parameter was 60 sec.
This Jira changes the default to 0 sec - the approriate default for 1 node or
small clusters (say less than 50 nodes)
This Jira also documents the config parameter in hadoop-defaults.xml
was:
HADOOP-2326 added a new config parameter for the initial block report that gets
sent after DataNode registration but this config parameter was not documented
in the Hadoop-defaults.xml
This Jira fixes that.
- conf/hadoop-defaults.xml uses a default value of 0 sec (as does the code)
Summary: Change default for initial block report to 0 sec and document
it in hadoop-defaults.xml (was: No config parameter for initial block report
detail sin Hadoop-defaults.xml)
> Change default for initial block report to 0 sec and document it in
> hadoop-defaults.xml
> ---------------------------------------------------------------------------------------
>
> Key: HADOOP-3486
> URL: https://issues.apache.org/jira/browse/HADOOP-3486
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Reporter: Sanjay Radia
> Assignee: Sanjay Radia
> Fix For: 0.18.0
>
> Attachments: hadoopDefaults4Delay.patch, hadoopDefaults4Delay2.patch
>
>
> HADOOP-2326 added a new config parameter for the initial block report that
> gets sent after DataNode registration.
> The default value for this parameter was 60 sec.
> This Jira changes the default to 0 sec - the approriate default for 1 node
> or small clusters (say less than 50 nodes)
> This Jira also documents the config parameter in hadoop-defaults.xml
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