Shixiong Zhu 7026ee23e0 [SPARK-17755][CORE] Use workerRef to send RegisterWorkerResponse to avoid the race condition ... ## What changes were proposed in this pull request? The root cause of this issue is that RegisterWorkerResponse and LaunchExecutor are sent via two different channels (TCP connections) and their order is not guaranteed. This PR changes the master and worker codes to use `workerRef` to send RegisterWorkerResponse, so that RegisterWorkerResponse and LaunchExecutor are sent via the same connection. Hence `LaunchExecutor` will always be after `RegisterWorkerResponse` and never be ignored. ## How was this patch tested? Jenkins Author: Shixiong Zhu <shixiong@databricks.com> Closes #16345 from zsxwing/SPARK-17755.		2016-12-25 23:48:14 -08:00
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src	[SPARK-17755][CORE] Use workerRef to send RegisterWorkerResponse to avoid the race condition	2016-12-25 23:48:14 -08:00
pom.xml	[SPARK-17807][CORE] split test-tags into test-JAR	2016-12-21 16:37:20 -08:00