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From "Wei Yan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-13237) [Documentation] RBF: Mount points across multiple subclusters
Date Thu, 05 Apr 2018 16:52:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-13237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16427238#comment-16427238
] 

Wei Yan commented on HDFS-13237:
--------------------------------

Sorry for the late. Some minors.
{quote}For deciding where to create a new file it uses the order parameter.
It currently supports the following methods:
{quote}
The first '.' should be ','? Also would be better to "a new file" --> "a new file/folder".
{quote}* RANDOM: Random subcluster. This is usually useful for reading workloads and balance
the load across. Folders are created in all subclusters.
{quote}
RANDOM can balance both READ and WRITE workload across subcusters, not just reading workload,
right?
{quote}the difference is that HASH would make all the files/folder within a folder
{quote}
Here "files/folder" should be "files/folders".
{quote}][-order HASH|LOCAL|RANDOM|HASH_ALL|SPACE|]]
{quote}
There is an extra '|' at the end.

> [Documentation] RBF: Mount points across multiple subclusters
> -------------------------------------------------------------
>
>                 Key: HDFS-13237
>                 URL: https://issues.apache.org/jira/browse/HDFS-13237
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Íñigo Goiri
>            Assignee: Íñigo Goiri
>            Priority: Minor
>         Attachments: HDFS-13237.000.patch, HDFS-13237.001.patch, HDFS-13237.002.patch
>
>
> Document the feature to spread mount points across multiple subclusters.



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