[jira] [Issue Comment Deleted] (HDFS-6133) Add a feature for replica pinning so that a pinned replica will not be moved by Balancer/Mover.

["Yongjun Zhang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-6133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yongjun Zhang updated HDFS-6133:
--------------------------------
    Comment: was deleted

(was: Hi [~zhaoyunjiong],

I found the release notes

{quote}
The replica pinning feature can be enabled/disabled by "dfs.datanode.block-pinning.enabled", where the default is false.
{quote}

 is not accurate about the config property name, I'm changing it to:

{quote}
The replica pinning feature can be enabled/disabled by client config property "dfs.client.pin-on-favored-node.enabled" whose default is false
{quote}

Thanks.
)

> Add a feature for replica pinning so that a pinned replica will not be moved by Balancer/Mover.
> -----------------------------------------------------------------------------------------------
>
>                 Key: HDFS-6133
>                 URL: https://issues.apache.org/jira/browse/HDFS-6133
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: balancer & mover, datanode
>            Reporter: zhaoyunjiong
>            Assignee: zhaoyunjiong
>             Fix For: 2.7.0
>
>         Attachments: HDFS-6133-1.patch, HDFS-6133-10.patch, HDFS-6133-11.patch, HDFS-6133-2.patch, HDFS-6133-3.patch, HDFS-6133-4.patch, HDFS-6133-5.patch, HDFS-6133-6.patch, HDFS-6133-7.patch, HDFS-6133-8.patch, HDFS-6133-9.patch, HDFS-6133.patch
>
>
> Currently, run Balancer will destroying Regionserver's data locality.
> If getBlocks could exclude blocks belongs to files which have specific path prefix, like "/hbase", then we can run Balancer without destroying Regionserver's data locality.



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