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Posted to hdfs-issues@hadoop.apache.org by "Andrew Wang (JIRA)" <ji...@apache.org> on 2016/01/12 20:43:39 UTC

[jira] [Commented] (HDFS-9635) Add one more volume choosing policy with considering volume IO load

    [ https://issues.apache.org/jira/browse/HDFS-9635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15094628#comment-15094628 ] 

Andrew Wang commented on HDFS-9635:
-----------------------------------

Hi [~zhangyongxyz] this seems pretty similar to HDFS-8538, are you interested in picking that up? Basically adding writer-awareness to the available space policy.

> Add one more volume choosing policy with considering volume IO load
> -------------------------------------------------------------------
>
>                 Key: HDFS-9635
>                 URL: https://issues.apache.org/jira/browse/HDFS-9635
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>            Reporter: Yong Zhang
>            Assignee: Yong Zhang
>
> We have RoundRobinVolumeChoosingPolicy and AvailableSpaceVolumeChoosingPolicy, but both not consider volume IO load.
> This jira will add a Add one more volume choosing policy base on how many xceiver count on volume.



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