Github user zhonghaihua commented on a diff in the pull request:
https://github.com/apache/spark/pull/10794#discussion_r57838823
--- Diff:
yarn/src/main/scala/org/apache/spark/deploy/yarn/YarnAllocator.scala ---
@@ -81,8 +82,20 @@ private[yarn] class YarnAllocator(
new ConcurrentHashMap[ContainerId, java.lang.Boolean])
@volatile private var numExecutorsRunning = 0
- // Used to generate a unique ID per executor
- private var executorIdCounter = 0
+
+ /**
+ * Used to generate a unique ID per executor
+ *
+ * Init `executorIdCounter`. when AM restart, `executorIdCounter` will
reset to 0. Then
+ * the id of new executor will start from 1, this will conflict with the
executor has
--- End diff --
I think we can clarify this in `SPARK-12864` issue. @andrewor14 What's your
opinion ?
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