Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/3574#discussion_r21473307
--- Diff: core/src/main/scala/org/apache/spark/storage/BlockManager.scala
---
@@ -1010,7 +1010,10 @@ private[spark] class BlockManager(
info.synchronized {
// required ? As of now, this will be invoked only for blocks
which are ready
// But in case this changes in future, adding for consistency sake.
- if (!info.waitForReady()) {
+ if (blockInfo.get(blockId).isEmpty) {
+ logWarning(s"Block $blockId was already dropped.")
+ return None
+ } else if(!info.waitForReady()) {
--- End diff --
Minor style nit: this needs a space after the `if` and before the open
paren: `if (!info...`.
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