Victsm commented on a change in pull request #30164:
URL: https://github.com/apache/spark/pull/30164#discussion_r524527610
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File path:
core/src/main/scala/org/apache/spark/storage/BlockManagerMasterEndpoint.scala
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@@ -657,6 +688,43 @@ class BlockManagerMasterEndpoint(
}
}
+ private def getShufflePushMergerLocations(
+ numMergersNeeded: Int,
+ hostsToFilter: Set[String]): Seq[BlockManagerId] = {
+ val blockManagersWithExecutors =
blockManagerIdByExecutor.groupBy(_._2.host)
+ .mapValues(_.head).values.map(_._2).toSet
+ val filteredBlockManagersWithExecutors = blockManagersWithExecutors
+ .filterNot(x => hostsToFilter.contains(x.host))
+ val filteredMergersWithExecutors = filteredBlockManagersWithExecutors.map(
+ x => BlockManagerId(x.executorId, x.host,
StorageUtils.externalShuffleServicePort(conf)))
Review comment:
Thanks for pointing this one out.
We currently use empty String for `executorId` part of a `BlockManagerId`
for shuffle push merger locations.
This part should conform to the convention.
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