attilapiros commented on a change in pull request #28708:
URL: https://github.com/apache/spark/pull/28708#discussion_r435374818
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File path: core/src/main/scala/org/apache/spark/MapOutputTracker.scala
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@@ -121,12 +121,28 @@ private class ShuffleStatus(numPartitions: Int) {
mapStatuses(mapIndex) = status
}
+ /**
+ * Update the map output location (e.g. during migration).
+ */
+ def updateMapOutput(mapId: Long, bmAddress: BlockManagerId): Unit =
withWriteLock {
+ val mapStatusOpt = mapStatuses.find(_.mapId == mapId)
+ mapStatusOpt match {
+ case Some(mapStatus) =>
+ logInfo("Updating map output for ${mapId} to ${bmAddress}")
+ mapStatus.updateLocation(bmAddress)
+ invalidateSerializedMapOutputStatusCache()
+ case None =>
+ logError("Asked to update map output ${mapId} for untracked map
status.")
Review comment:
```suggestion
logError(s"Asked to update map output ${mapId} for untracked map
status.")
```
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