hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8647) Abstract BlockManager's rack policy into BlockPlacementPolicy
Date Thu, 03 Dec 2015 00:59:11 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiao Chen updated HDFS-8647:
----------------------------
    Attachment:     (was: HDFS-8647-branch26.patch)

> Abstract BlockManager's rack policy into BlockPlacementPolicy
> -------------------------------------------------------------
>
>                 Key: HDFS-8647
>                 URL: https://issues.apache.org/jira/browse/HDFS-8647
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Ming Ma
>            Assignee: Brahma Reddy Battula
>             Fix For: 2.8.0
>
>         Attachments: HDFS-8647-001.patch, HDFS-8647-002.patch, HDFS-8647-003.patch, HDFS-8647-004.patch,
HDFS-8647-004.patch, HDFS-8647-005.patch, HDFS-8647-006.patch, HDFS-8647-007.patch, HDFS-8647-008.patch,
HDFS-8647-009.patch
>
>
> Sometimes we want to have namenode use alternative block placement policy such as upgrade
domains in HDFS-7541.
> BlockManager has built-in assumption about rack policy in functions such as useDelHint,
blockHasEnoughRacks. That means when we have new block placement policy, we need to modify
BlockManager to account for the new policy. Ideally BlockManager should ask BlockPlacementPolicy
object instead. That will allow us to provide new BlockPlacementPolicy without changing BlockManager.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message