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From "John Zhuge (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-10294) Balancer configures DN properties
Date Thu, 14 Apr 2016 23:57:25 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

John Zhuge updated HDFS-10294:
------------------------------
    Priority: Major  (was: Critical)

> Balancer configures DN properties
> ---------------------------------
>
>                 Key: HDFS-10294
>                 URL: https://issues.apache.org/jira/browse/HDFS-10294
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: balancer & mover
>    Affects Versions: 2.6.0
>            Reporter: John Zhuge
>            Assignee: John Zhuge
>
> Balancer configures the 2 balance-related properties (bandwidthPerSec and concurrentMoves)
using NN API {{get/setBalancerBandwidth}} and the new {{get/setBalancerConcurrentMoves}}.
> Details:
> * Upon the start of the balancer, set the DN properties.
> * Use NN API to query and set the 2 properties. There might be a slight delay for the
property changes to be propagated to all DNs.
> * The DN property changes will not survive restart.
> * Balancer gets the property values from command line or its config file.
> * No need to edit the config file on each DN or run {{hdfs dfsadmin -setBalancerBandwidth}}
to configure every DN in the cluster.



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