Shubham Chopra created SPARK-15354:
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             Summary: Topology aware block replication strategies
                 Key: SPARK-15354
                 URL: https://issues.apache.org/jira/browse/SPARK-15354
             Project: Spark
          Issue Type: Sub-task
          Components: Mesos, Spark Core, YARN
            Reporter: Shubham Chopra


Implementations of strategies for resilient block replication for different 
resource managers that replicate the 3-replica strategy used by HDFS, where the 
first replica is on an executor, the second replica within the same rack as the 
executor and a third replica on a different rack. 
The implementation involves providing two pluggable classes, one running in the 
driver that provides topology information for every host at cluster start and 
the second prioritizing a list of peer BlockManagerIds. 




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