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From "Amir Langer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5732) Separate memory space between BM and NN
Date Tue, 04 Feb 2014 14:44:10 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amir Langer updated HDFS-5732:
------------------------------

    Attachment: 0002-Separation-of-BM-from-NN-Step-2-Separate-memory-spac.patch

incremental patch after patch 0001 of sub task 1 (HDFS-5731)

> Separate memory space between BM and NN
> ---------------------------------------
>
>                 Key: HDFS-5732
>                 URL: https://issues.apache.org/jira/browse/HDFS-5732
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Amir Langer
>         Attachments: 0002-Separation-of-BM-from-NN-Step-2-Separate-memory-spac.patch
>
>
> Change created APIs to not rely on the same instance being shared in both BM and NN.
Use immutable objects / keep state in sync.
> BM and NN will still exist in the same VM work on a new BM service as an independent
process is deferred to later tasks.
> Also, a one to one relation between BM and NN is assumed. 
> This task should maintain backward compatibility.



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