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https://issues.apache.org/jira/browse/HADOOP-5015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Suresh Srinivas updated HADOOP-5015:
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Attachment: blkmanager.patch
As a first step towards separating out block management functionality from
FSNamesystem.java, I have introduced a new class BlockManager.java. This new
class is to be only used by {{FSNamesystem}}, using the synchronization as it
exists today. To make code review simpler, I have also retained the structure
of the code moved from FSNamesystem.java as it is in BlockManager.java. After
this change, we could have more iterations to organize the code better with in
BlockManager.java.
> Seprate block/replica management code from FSNamesystem
> -------------------------------------------------------
>
> Key: HADOOP-5015
> URL: https://issues.apache.org/jira/browse/HADOOP-5015
> Project: Hadoop Core
> Issue Type: Improvement
> Components: dfs
> Reporter: Hairong Kuang
> Fix For: 0.21.0
>
> Attachments: blkmanager.patch
>
>
> Currently FSNamesystem contains a big amount of code that manages blocks and
> replicas. The code scatters in FSNamesystem and it is hard to read and
> maintain. It would be nice to move the code to a separate class called, for
> example, BlockManager.
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