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https://issues.apache.org/jira/browse/HDFS-6480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Haohui Mai updated HDFS-6480:
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Attachment: HDFS-6480.004.patch
> Move waitForReady() from FSDirectory to FSNamesystem
> ----------------------------------------------------
>
> Key: HDFS-6480
> URL: https://issues.apache.org/jira/browse/HDFS-6480
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Reporter: Haohui Mai
> Assignee: Haohui Mai
> Attachments: HDFS-6480.000.patch, HDFS-6480.001.patch,
> HDFS-6480.002.patch, HDFS-6480.003.patch, HDFS-6480.004.patch
>
>
> Currently FSDirectory implements a barrier in {{waitForReady()}} /
> {{setReady()}} so that it only serve requests once the FSImage is fully
> loaded.
> As a part of the effort to evolve {{FSDirectory}} to a class which focuses on
> implementing the data structure of the namespace, this jira proposes to move
> the barrier one level higher to {{FSNamesystem}}.
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