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https://issues.apache.org/jira/browse/SPARK-23796?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-23796.
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Resolution: Incomplete
> There's no API to change state RDD's name
> -----------------------------------------
>
> Key: SPARK-23796
> URL: https://issues.apache.org/jira/browse/SPARK-23796
> Project: Spark
> Issue Type: Question
> Components: Spark Core
> Affects Versions: 2.3.0
> Reporter: István Gansperger
> Priority: Minor
> Labels: bulk-closed
>
> I use a few {{mapWithState}} stream oparations in my application and at some
> point it became a minor inconvenience that I could not figure out how to set
> the state RDDs name or serialization level. Searching around didn't really
> help and I have not come across any issues regarding this (pardon my
> inability to find it if there's one). It could be useful to see how much
> memory each state uses if the user has multiple such transformations.
> I have used some ugly reflection based code to be able to set the name of the
> state RDD and also the serialization level. I understand that the latter may
> be intentionally limited, but I haven't come across any issues caused by this
> apart from slightly degraded performance in exchange for a bit less memory
> usage. Are these limitations in place intentionally or is it just an
> oversight? Having some extra methods for these on {{StateSpec}} could be
> useful in my opinion.
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