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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