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Posted to common-dev@hadoop.apache.org by "Doug Cutting (JIRA)" <ji...@apache.org> on 2007/01/18 21:07:30 UTC

[jira] Reopened: (HADOOP-803) Reducing memory consumption on Namenode : Part 1

     [ https://issues.apache.org/jira/browse/HADOOP-803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Doug Cutting reopened HADOOP-803:
---------------------------------


This was causing problems and has been reverted in HADOOP-898.

> Reducing memory consumption on Namenode : Part 1
> ------------------------------------------------
>
>                 Key: HADOOP-803
>                 URL: https://issues.apache.org/jira/browse/HADOOP-803
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>            Reporter: Raghu Angadi
>         Assigned To: Raghu Angadi
>             Fix For: 0.11.0
>
>         Attachments: block-refs-2.patch, block-refs-3.patch, block-refs-5.patch, HADOOP-803.patch
>
>
> There appears to be some places in Namenode that allow reducing memory consumption without intrusive code or feature changes. This bug is an initial attempt making those changes. Please include your thoughts as well. 
> One change I am planning to make : 
> Currently one copy of each block exists for each of the replicas and one copy for blockMap. I think they are all supposed to be same.

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