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https://issues.apache.org/jira/browse/HDFS-11422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15871115#comment-15871115
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Harsh J commented on HDFS-11422:
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Does the feature offered by {{dfs.namenode.name.dir.restore}} help, even
partially? For NNs with multiple directories, a reattempt of an earlier failed
directory gets tried at every checkpoint trigger. Its not purely time based
however.
We'd considered making it default to true (HDFS-3560), but that was not done.
If this fits, perhaps we can turn it on by default as the feature has existed
for a while now.
> Need a method to refresh the list of NN StorageDirectories after removal
> ------------------------------------------------------------------------
>
> Key: HDFS-11422
> URL: https://issues.apache.org/jira/browse/HDFS-11422
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 2.6.0
> Reporter: Attila Bukor
>
> If a NN storage directory is removed due to an error, the NameNode will fail
> to write the image even if the issue was intermittent. It would be good to
> have a way to make the NameNode try writing again after the issue is fixed -
> and maybe even try it automatically every certain amount of time
> (configurable).
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