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https://issues.apache.org/jira/browse/HDFS-5208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du updated HDFS-5208:
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Attachment: HDFS-5208-v1.patch
Update the patch. Please note that the additional API added in
DNSToSwitchMapping is not just for invalid topology case, but we may also
provide API/CLI to refresh node's network topology for HDFS/YARN later to
handle the topology changes.
> Only clear network location cache on specific nodes if invalid
> NetworkTopology happens
> --------------------------------------------------------------------------------------
>
> Key: HDFS-5208
> URL: https://issues.apache.org/jira/browse/HDFS-5208
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Junping Du
> Assignee: Junping Du
> Attachments: HDFS-5208-v1.patch
>
>
> After HDFS-4521, once a DN is registered with invalid networktopology, all
> cached rack info in DNSToSwitchMapping will be cleared. We should only clear
> cache on specific nodes.
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