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From "Eli Collins (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-3149) The client should blacklist failed local/remote network interface pairs
Date Sun, 25 Mar 2012 21:16:27 GMT
The client should blacklist failed local/remote network interface pairs
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                 Key: HDFS-3149
                 URL: https://issues.apache.org/jira/browse/HDFS-3149
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: hdfs client
            Reporter: Eli Collins
            Assignee: Eli Collins


If a client or worker can not connect to a given remote address, eg due to network or interface
failure, then it should blacklist the local/remote interface pair. Only the pair is blacklisted
in case the remote interface is routable via another local interface. The pair is black listed
for a configurable period of time and another local/remote interface pair is tried. For full
fault tolerance, the host interfaces need to be connected to different switches.

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