GitHub user li-zhihui opened a pull request: https://github.com/apache/spark/pull/900
submit stage after (configured ratio of) executors have been registered Because creating TaskSetManager and registering executors are asynchronous, in most situation, early stages' tasks run without preferred locality. A simple solution is sleeping few seconds in application, so that executors have enough time to register. The PR add 2 configuration properties to make DAGScheduler submit stage after a few of executors have been registered. # submit stage only after successfully registered executors arrived the ratio, default value 0 spark.executor.registeredRatio = 0.8 # whatever registeredRatio is arrived, submit stage after the maxRegisteredWaitingTime(millisecond), default value 10000 spark.executor.maxRegisteredWaitingTime = 5000 You can merge this pull request into a Git repository by running: $ git pull https://github.com/li-zhihui/spark master Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/900.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #900 ---- commit a9ee1cb3efbcb58b59f66b4ddecb515609b51b86 Author: li-zhihui <zhihui...@intel.com> Date: 2014-05-28T05:35:13Z submit stage after (configured ratio of) executors have been registered ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---