wineternity opened a new pull request, #38702:
URL: https://github.com/apache/spark/pull/38702
### What changes were proposed in this pull request?
Ignore the SparkListenerTaskEnd with Reason "Resubmitted" to avoid memory
leak
### Why are the changes needed?
For a long running spark thriftserver, LiveExecutor will be accumulated in
the deadExecutors HashMap and cause message event queue processing slowly
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
New UT Added
Test in thriftserver env
### The way to reproduce
I try to reproduce it in spark shell, but it is a little bit handy
1. start spark-shell , set spark.dynamicAllocation.maxExecutors=2 for
convient
` bin/spark-shell --driver-java-options
"-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=8006"`
2. run a job with shuffle
`sc.parallelize(1 to 1000, 10).map { x => Thread.sleep(1000) ; (x % 3, x)
}.reduceByKey((a, b) => a + b).collect()`
3. After some ShuffleMapTask finished, kill one or two executor to let tasks
resubmitted
4. check by heap dump or debug
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