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Posted to hdfs-issues@hadoop.apache.org by "Ravi Prakash (JIRA)" <ji...@apache.org> on 2017/06/22 17:47:00 UTC
[jira] [Assigned] (HDFS-12011) Add a new load balancing volume
choosing policy
[ https://issues.apache.org/jira/browse/HDFS-12011?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ravi Prakash reassigned HDFS-12011:
-----------------------------------
Assignee: chencan
> Add a new load balancing volume choosing policy
> ------------------------------------------------
>
> Key: HDFS-12011
> URL: https://issues.apache.org/jira/browse/HDFS-12011
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: chencan
> Assignee: chencan
> Attachments: HADOOP-12011.patch
>
>
> There are two types of volume choosing policies when choose a volume inner a datanode to write in a datablock : RoundRobinVolumeChoosingPolicy and AvailableSpaceVolumeChoosingPolicy.This two policies do not take into account the fsvolume's load. We can add a new load balancing volume choosing policy, using existing reference in FsVolumeImpl.
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