Github user caneGuy commented on a diff in the pull request:
https://github.com/apache/spark/pull/20667#discussion_r171121778
--- Diff: core/src/main/scala/org/apache/spark/storage/BlockManagerId.scala
---
@@ -132,10 +133,15 @@ private[spark] object BlockManagerId {
getCachedBlockManagerId(obj)
}
- val blockManagerIdCache = new ConcurrentHashMap[BlockManagerId,
BlockManagerId]()
+ val blockManagerIdCache = CacheBuilder.newBuilder()
+ .maximumSize(500)
--- End diff --
Thanks @jiangxb1987 i have updated the comment
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