holdenk commented on a change in pull request #29211:
URL: https://github.com/apache/spark/pull/29211#discussion_r463785696
##########
File path:
core/src/main/scala/org/apache/spark/storage/BlockManagerDecommissioner.scala
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@@ -327,4 +354,28 @@ private[storage] class BlockManagerDecommissioner(
}
logInfo("Stopped storage decommissioner")
}
+
+ /*
+ * Returns the last migration time and a boolean for if all blocks have
been migrated.
+ * If there are any tasks running since that time the boolean may be
incorrect.
+ */
+ private[storage] def lastMigrationInfo(): (Long, Boolean) = {
+ if (stopped || (stoppedRDD && stoppedShuffle)) {
+ (System.nanoTime(), true)
+ } else {
+ // Chose the min of the running times.
+ val lastMigrationTime = if (
+ conf.get(config.STORAGE_DECOMMISSION_SHUFFLE_BLOCKS_ENABLED) &&
+ conf.get(config.STORAGE_DECOMMISSION_RDD_BLOCKS_ENABLED)) {
+ Math.min(lastRDDMigrationTime, lastShuffleMigrationTime)
Review comment:
Ok I'm not sure how we'd implement this in the shutdown thread, maybe
that's why I'm concerned about the proposal. In your mind, information from the
block manager decommissioner would we expose to allow this logic to move to the
shutdown thread?
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