Why disable registering shuffle with context cleaner

[zuston]

incubator-uniffle/spark-patches/spark-3.2.1_dynamic_allocation_support.patch

Lines 28 to 31 in f0fbdc4

	+ if (!_rdd.context.getConf.isRssEnable()) {
	+ _rdd.sparkContext.cleaner.foreach(_.registerShuffleForCleanup(this))
	+ _rdd.sparkContext.shuffleDriverComponents.registerShuffle(shuffleId)
	+ }

@jerqi @colinmjj @frankliee

If u have time, could u help describe more about this patch ? Thanks

[jerqi]

Uniffle don't have the capability of cleaning the shuffle of stage. We disable cleaning operation, just keep consistent between Uniffle and Spark.