[jira] [Updated] (HDFS-6846) NetworkTopology#sortByDistance should give nodes higher priority, which cache the block.

2017-01-06 Thread Junping Du (JIRA) 

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https://issues.apache.org/jira/browse/HDFS-6846?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Junping Du updated HDFS-6846:
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Target Version/s:   (was: 2.8.0)

> NetworkTopology#sortByDistance should give nodes higher priority, which cache 
> the block.
> 
>
> Key: HDFS-6846
> URL: https://issues.apache.org/jira/browse/HDFS-6846
> Project: Hadoop HDFS
>  Issue Type: Improvement
>  Components: namenode
>Affects Versions: 2.6.0
>Reporter: Yi Liu
>Assignee: Yi Liu
>
> Currently there are 3 weights:
> * local
> * same rack
> * off rack
> But if some nodes cache the block, then it's faster if client read block from 
> these nodes. So we should have some more weights as following:
> * local
> * cached & same rack
> * same rack
> * cached & off rack
> * off rack



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[jira] [Updated] (HDFS-6846) NetworkTopology#sortByDistance should give nodes higher priority, which cache the block.

2015-06-29 Thread Vinod Kumar Vavilapalli (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-6846?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vinod Kumar Vavilapalli updated HDFS-6846:
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Target Version/s: 2.8.0  (was: 2.6.0)

Moving features/enhancements out of previously closed releases into the next 
minor release 2.8.0.

 NetworkTopology#sortByDistance should give nodes higher priority, which cache 
 the block.
 

 Key: HDFS-6846
 URL: https://issues.apache.org/jira/browse/HDFS-6846
 Project: Hadoop HDFS
  Issue Type: Improvement
  Components: namenode
Affects Versions: 2.6.0
Reporter: Yi Liu
Assignee: Yi Liu

 Currently there are 3 weights:
 * local
 * same rack
 * off rack
 But if some nodes cache the block, then it's faster if client read block from 
 these nodes. So we should have some more weights as following:
 * local
 * cached  same rack
 * same rack
 * cached  off rack
 * off rack



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Auto-Re: [jira] [Updated] (HDFS-6846) NetworkTopology#sortByDistance should give nodes higher priority, which cache the block.

2015-06-29 Thread wsb 
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