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Thread: Rack2 and datanode failed

  1. #1
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    Rack2 and datanode failed

    Please explain what to do if rack 2 and datanode fails in HDFS?

  2. #2
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    Quote Originally Posted by rohan View Post
    Please explain what to do if rack 2 and datanode fails in HDFS?
    If both rack2 and datanode present in rack 1 fails then there is no chance of getting data from it. In order to avoid such situations, we need to replicate that data more number of times instead of replicating only thrice. This can be done by changing the value in replication factor which is set to 3 by default.

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