viirya commented on a change in pull request #25856: [SPARK-29182][Core] Cache
preferred locations of checkpointed RDD
URL: https://github.com/apache/spark/pull/25856#discussion_r326927216
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File path: core/src/main/scala/org/apache/spark/internal/config/package.scala
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@@ -783,6 +783,13 @@ package object config {
.booleanConf
.createWithDefault(false)
+ private[spark] val CACHE_CHECKPOINT_PREFERRED_LOCS =
+ ConfigBuilder("spark.rdd.checkpoint.cachePreferredLocs")
+ .internal()
+ .doc("Whether to cache preferred locations of checkpointed RDD.")
+ .booleanConf
+ .createWithDefault(false)
Review comment:
I can not think of possible side-effect for now. To be conservative, we can
have false as default.
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