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https://issues.apache.org/jira/browse/HDFS-14750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17528060#comment-17528060
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Felix N commented on HDFS-14750:
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Tried my hands at it since there seems to be no updates for this ticket.
The rough idea is to utilize the metrics added by HDFS-16296 and HDFS-16302,
spawn a background thread that resizes the semaphores periodically based on the
traffic to the namespaces (determined from the metrics).
> RBF: Improved isolation for downstream name nodes. {Dynamic}
> ------------------------------------------------------------
>
> Key: HDFS-14750
> URL: https://issues.apache.org/jira/browse/HDFS-14750
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: CR Hota
> Assignee: CR Hota
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> This Jira tracks the work around dynamic allocation of resources in routers
> for downstream hdfs clusters.
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