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https://issues.apache.org/jira/browse/SPARK-36584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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胡振宇 updated SPARK-36584:
------------------------
Description:
When driver broadcast object, it will send the
[SparkListenerBlockUpdated|[https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/scheduler/SparkListener.scala#L228]|https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/scheduler/SparkListener.scala#L228]
event. [[ExecutorMonitor#onBlockUpdated||#onBlockUpdated]
[https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/scheduler/dynalloc/ExecutorMonitor.scala#L380]]
receives and handles the event, in this method, it calls
[ensureExecutorIsTracked|[https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/scheduler/dynalloc/ExecutorMonitor.scala#L489]]
to put driver in `executors` variable, but in my understanding,
`ExecutorMonitor` should only monitor Executor, not Driver. Moreover, adding a
`driver` to the `executors` will affect the calculation of
[[ExecutorAllocationManager#removeExecutors||#removeExecutors]
[https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/ExecutorAllocationManager.scala#L552]|https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/ExecutorAllocationManager.scala#L552],
and the driver will occupy the count of `executors`
was:
When driver broadcast object, it will send the
[SparkListenerBlockUpdated](https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/scheduler/SparkListener.scala#L228)
event.
[ExecutorMonitor#onBlockUpdated](https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/scheduler/dynalloc/ExecutorMonitor.scala#L380)
receives and handles the event, in this method, it calls
[ensureExecutorIsTracked](https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/scheduler/dynalloc/ExecutorMonitor.scala#L489)
to put driver in `executors` variable, but in my understanding,
`ExecutorMonitor` should only monitor Executor, not Driver. Moreover, adding a
`driver` to the `executors` will affect the calculation of
[ExecutorAllocationManager#removeExecutors](https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/ExecutorAllocationManager.scala#L552),
and the driver will occupy the count of `executors`
> ExecutorMonitor#onBlockUpdated will receive event from driver
> -------------------------------------------------------------
>
> Key: SPARK-36584
> URL: https://issues.apache.org/jira/browse/SPARK-36584
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.1.2
> Environment: Spark 3.1.2
> Reporter: 胡振宇
> Priority: Major
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> When driver broadcast object, it will send the
> [SparkListenerBlockUpdated|[https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/scheduler/SparkListener.scala#L228]|https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/scheduler/SparkListener.scala#L228]
> event. [[ExecutorMonitor#onBlockUpdated||#onBlockUpdated]
> [https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/scheduler/dynalloc/ExecutorMonitor.scala#L380]]
> receives and handles the event, in this method, it calls
> [ensureExecutorIsTracked|[https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/scheduler/dynalloc/ExecutorMonitor.scala#L489]]
> to put driver in `executors` variable, but in my understanding,
> `ExecutorMonitor` should only monitor Executor, not Driver. Moreover, adding
> a `driver` to the `executors` will affect the calculation of
> [[ExecutorAllocationManager#removeExecutors||#removeExecutors]
> [https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/ExecutorAllocationManager.scala#L552]|https://github.com/apache/spark/blob/df0ec56723f0b47c3629055fa7a8c63bb4285147/core/src/main/scala/org/apache/spark/ExecutorAllocationManager.scala#L552],
> and the driver will occupy the count of `executors`
>
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