Ngone51 commented on a change in pull request #31876:
URL: https://github.com/apache/spark/pull/31876#discussion_r617657336
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File path: core/src/main/scala/org/apache/spark/scheduler/MapStatus.scala
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@@ -52,8 +53,20 @@ private[spark] sealed trait MapStatus {
* partitionId of the task or taskContext.taskAttemptId is used.
*/
def mapId: Long
-}
+ protected def loadLocation(in: ObjectInput): Location = {
+ val conf = SparkEnv.get.conf
+ conf.get(config.SHUFFLE_LOCATION_PLUGIN_CLASS).map { locClass =>
+ val loc = Utils.loadExtensions(
+ classOf[Location],
+ Seq(locClass),
+ conf
+ ).head
+ loc.readExternal(in)
+ loc
Review comment:
I made a prototype at 66977e0. Does it look good to you? (If yes, I'd
like to optimize it further to unify the `locationCache` and
`blockManagerIdCache` if possible and reduce some duplicate code...)
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