presto-main/src/main/java/io/prestosql/execution/RemoteTaskFactory.java/RemoteTaskFactory/createRemoteTask
class RemoteTaskFactory:    RemoteTask createRemoteTask(
            Session session,
            TaskId taskId,
            InternalNode node,
            PlanFragment fragment,
            Multimap<PlanNodeId, Split> initialSplits,
            OptionalInt totalPartitions,
            OutputBuffers outputBuffers,
            PartitionedSplitCountTracker partitionedSplitCountTracker,
            boolean summarizeTaskInfo);