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https://issues.apache.org/jira/browse/HDFS-2934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13205271#comment-13205271
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Todd Lipcon commented on HDFS-2934:
-----------------------------------
The shared edits dir, for example, might be {{/filer/clusters/foo/}} for one
federated nameservice but {{/filer/clusters/bar/}} for another.
> HA: Allow configs to be scoped to all NNs in the nameservice
> ------------------------------------------------------------
>
> Key: HDFS-2934
> URL: https://issues.apache.org/jira/browse/HDFS-2934
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, name-node
> Affects Versions: HA branch (HDFS-1623)
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
>
> Currently, for namenode-specific keys in HA, one must configure them as
> keyfoo.nameserviceid.namenodeid. However, in many cases all of the NNs in a
> nameservice would share the same value. So we should allow the configuration
> of "keyfoo.nameserviceid" to apply to all NNs. The resolution path for these
> keys would then be:
> keyfoo.nameserviceid.nnid
> keyfoo.nameserviceid (if above not set)
> keyfoo (if neither of above set)
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