Gopal V created HIVE-21229:
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Summary: Tez: Provide a Node-Label split affinity provider
Key: HIVE-21229
URL: https://issues.apache.org/jira/browse/HIVE-21229
Project: Hive
Issue Type: Bug
Reporter: Gopal V
When the queue has node-labels, the delays involved in waiting for node
locality are a net-loss to the query.
Asking for locality in a node which is not available to the current queue is
slowing down YARN task allocations.
Also specifically, for the 3-replica HDFS case, picking the replica that
belongs within the node-label is more efficient than picking a non-available
node & falling back to rack_local instead.
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