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https://issues.apache.org/jira/browse/HDFS-9129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mingliang Liu updated HDFS-9129:
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Attachment: HDFS-9129.003.patch
In v3 patch, the {{Namesystem}} will not leave *STARTUP* to *OFF* state.
Instead, it asks the {{BlockManager}} every time when its
{{isInStartupSafeMode}} is called. This way, we are able to simplify
{{Namesystem}}'s state machine by delegating all *STARTUP* safe mode logic,
which includes leaving safe mode, to {{BlockManager}}, and to
{{BlockManagerSafeMode}}.
V3 patch is for Jenkins. Please hold on before reviewing it.
> Move the safemode block count into BlockManager
> -----------------------------------------------
>
> Key: HDFS-9129
> URL: https://issues.apache.org/jira/browse/HDFS-9129
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Haohui Mai
> Assignee: Mingliang Liu
> Attachments: HDFS-9129.000.patch, HDFS-9129.001.patch,
> HDFS-9129.002.patch, HDFS-9129.003.patch
>
>
> The {{SafeMode}} needs to track whether there are enough blocks so that the
> NN can get out of the safemode. These fields can moved to the
> {{BlockManager}} class.
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