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https://issues.apache.org/jira/browse/HDFS-13295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16403125#comment-16403125
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Bharat Viswanadham commented on HDFS-13295:
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Hi [~nfraison.criteo]
One question I have from the description, have you faced this issue on the
cluster?
Because when loading from edit logs, in blockInfo object storage will not be
set, this will be set when block reports are received.
So, I think we will not hit the issue.
Let me know if i am missing something here?
> Namenode doesn't leave safemode if dfs.namenode.safemode.replication.min set
> < dfs.namenode.replication.min
> -----------------------------------------------------------------------------------------------------------
>
> Key: HDFS-13295
> URL: https://issues.apache.org/jira/browse/HDFS-13295
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Environment: CDH 5.11 with HDFS-8716 backported.
> dfs.namenode.replication.min=2
> dfs.namenode.safemode.replication.min=1
>
> Reporter: Nicolas Fraison
> Assignee: Nicolas Fraison
> Priority: Major
> Attachments: HDFS-13295.patch
>
>
> When we set dfs.namenode.safemode.replication.min <
> dfs.namenode.replication.min from HDFS-8716 patch the number of replica for
> which it will increase the safe block count
> must be equal to dfs.namenode.safemode.replication.min in
> `FSNamesystem.incrementSafeBlockCount`
> When reading modification from edits, the replica number for new blocks is
> set at min(numNodes,
> dfs.namenode.replication.min) in BlockManager.completeBlock which is greater
> than dfs.namenode.safemode.replication.min.
> Due to that safe block count never reach number of available blocks and
> namenode doesn't leave automatically the safemode
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