GitHub user jiangxb1987 opened a pull request: https://github.com/apache/spark/pull/18362
[SPARK-20832][Core] Standalone master should explicitly inform drivers of worker deaths and invalidate external shuffle service outputs ## What changes were proposed in this pull request? In standalone mode, master should explicitly inform each active driver of any worker deaths, so the invalid external shuffle service outputs on the lost host would be removed from the shuffle mapStatus, thus we can avoid future `FetchFailure`s. ## How was this patch tested? Manually tested by the following steps: 1. Start a standalone Spark cluster with one driver node and two worker nodes; 2. Run a Job with ShuffleMapStage, ensure the outputs distribute on each worker; 3. Run another Job to make all executors exit, but the workers are all alive; 4. Kill one of the workers; 5. Run rdd.collect(), before this change, we should see `FetchFailure`s and failed Stages, while after the change, the job should complete without failure. Before the change: ![image](https://user-images.githubusercontent.com/4784782/27335366-c251c3d6-55fe-11e7-99dd-d1fdcb429210.png) After the change: ![image](https://user-images.githubusercontent.com/4784782/27335393-d1c71640-55fe-11e7-89ed-bd760f1f39af.png) You can merge this pull request into a Git repository by running: $ git pull https://github.com/jiangxb1987/spark removeWorker Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/18362.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 #18362 ---- commit 6369af0792bb3439d061f5a9ac279c87d39b4d06 Author: Xingbo Jiang <xingbo.ji...@databricks.com> Date: 2017-06-19T14:04:52Z on WorkerRemoved, invalidate the outputs on the host from MapStatus. commit 825ade06bd47fd201ee90fa28b78b951049cf7a4 Author: Xingbo Jiang <xingbo.ji...@databricks.com> Date: 2017-06-19T14:27:56Z update commit fb72fb6ea8dc02753d8c699f985afc70d1ccd971 Author: Xingbo Jiang <xingbo.ji...@databricks.com> Date: 2017-06-20T10:16:50Z remove output from shuffle status ---- --- 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. --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org