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Posted to common-dev@hadoop.apache.org by "Sanjay Radia (JIRA)" <ji...@apache.org> on 2007/12/17 20:54:43 UTC
[jira] Created: (HADOOP-2444) Name shoud give the Datanodes a
parameter that specifies the backoff time for initial block reports
Name shoud give the Datanodes a parameter that specifies the backoff time for initial block reports
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Key: HADOOP-2444
URL: https://issues.apache.org/jira/browse/HADOOP-2444
Project: Hadoop
Issue Type: Improvement
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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[jira] Updated: (HADOOP-2444) Name shoud give the Datanodes a
parameter that specifies the backoff time for initial block reports
Posted by "Sanjay Radia (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-2444?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sanjay Radia updated HADOOP-2444:
---------------------------------
Fix Version/s: 0.17.0
> 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
> Fix For: 0.17.0
>
>
> 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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[jira] Updated: (HADOOP-2444) Name shoud give the Datanodes a
parameter that specifies the backoff time for initial block reports
Posted by "Sanjay Radia (JIRA)" <ji...@apache.org>.
[ 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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[jira] Updated: (HADOOP-2444) NameNnode shoud give the Datanodes a
parameter that specifies the backoff time for initial block reports
Posted by "Sanjay Radia (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-2444?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sanjay Radia updated HADOOP-2444:
---------------------------------
Summary: NameNnode shoud give the Datanodes a parameter that specifies the backoff time for initial block reports (was: Name shoud give the Datanodes a parameter that specifies the backoff time for initial block reports)
> 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
> Issue Type: Sub-task
> Components: dfs
> Reporter: Sanjay Radia
> Fix For: 0.17.0
>
>
> 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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You can reply to this email to add a comment to the issue online.