Wei Yan created YARN-1290:
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Summary: Let continuous scheduling achieve more balanced task
assignment
Key: YARN-1290
URL: https://issues.apache.org/jira/browse/YARN-1290
Project: Hadoop YARN
Issue Type: Improvement
Reporter: Wei Yan
Assignee: Wei Yan
Currently, in continuous scheduling (YARN-1010), in each round, the thread
iterates over pre-ordered nodes and assigns tasks. This mechanism may overload
the first several nodes, while the latter nodes have no tasks.
We should sort all nodes according to available resource. In each round, always
assign tasks to nodes with larger capacity, which can balance the load
distribution among all nodes.
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