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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5208) Only clear network location cache on specific nodes if invalid NetworkTopology happens
Date Wed, 25 Sep 2013 00:34:02 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Junping Du updated HDFS-5208:
-----------------------------

    Attachment: HDFS-5208-v2.patch
    
> 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, HDFS-5208-v2.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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