Hi I am noticing that the RDDs that are persisted get cleaned up very quickly. This usually happens in a matter of a few minutes. I tried setting a value of 20 hours for the /spark.cleaner.ttl/ property and still get the same behavior. In my use-case, I have to persist about 20 RDDs each of size 10 GB. There is enough memory available (around 1 TB). The /spark.storage.memoryFraction/ property is set at 0.7. How does the cleanup work? Any help is appreciated.
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