holdenk commented on a change in pull request #29367:
URL: https://github.com/apache/spark/pull/29367#discussion_r466777024
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File path: core/src/main/scala/org/apache/spark/ExecutorAllocationClient.scala
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@@ -81,6 +82,43 @@ private[spark] trait ExecutorAllocationClient {
countFailures: Boolean,
force: Boolean = false): Seq[String]
+ /**
+ * Request that the cluster manager decommission the specified executors.
+ * Default implementation delegates to kill, scheduler must override
+ * if it supports graceful decommissioning.
+ *
+ * @param executors identifiers of executors & decom info.
+ * @param adjustTargetNumExecutors whether the target number of executors
will be adjusted down
+ * after these executors have been
decommissioned.
+ * @return the ids of the executors acknowledged by the cluster manager to
be removed.
+ */
+ def decommissionExecutors(
+ executors: Seq[(String, ExecutorDecommissionInfo)],
+ adjustTargetNumExecutors: Boolean): Seq[String] = {
+ killExecutors(executors.map(_._1),
+ adjustTargetNumExecutors,
+ countFailures = false)
+ }
+
+
+ /**
+ * Request that the cluster manager decommission the specified executor.
+ * Default implementation delegates to decommissionExecutors, scheduler can
override
+ * if it supports graceful decommissioning.
+ *
+ * @param executorId identifiers of executor to decommission
+ * @param decommissionInfo information about the decommission (reason, host
loss)
+ * @return whether the request is acknowledged by the cluster manager.
+ */
+ def decommissionExecutor(executorId: String,
Review comment:
I can see the argument for having this be final more clearly, thanks.
I'll mark it as final :)
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