Alexey Kuznetsov created IGNITE-3768:
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             Summary: SQL: implement collecting query metrics from map step to 
reduce step
                 Key: IGNITE-3768
                 URL: https://issues.apache.org/jira/browse/IGNITE-3768
             Project: Ignite
          Issue Type: Task
          Components: SQL
    Affects Versions: 1.6
            Reporter: Alexey Kuznetsov
             Fix For: 1.8


Ignite SQL engine use a mapreduce to execute query on cluster.

Some node map queries over cluster and after they are completed and reduced on 
initial node.

In current implementation we measure duration on initial node and on all nodes 
where two-step queries are executed, but only overall duration is returned.

We also need to return duration from all two-step queries.



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