Github user srinathshankar commented on a diff in the pull request:
https://github.com/apache/spark/pull/15036#discussion_r78257052
--- Diff: core/src/main/scala/org/apache/spark/storage/BlockManager.scala
---
@@ -1316,21 +1310,28 @@ private[spark] class BlockManager(
// The block has already been removed; do nothing.
logWarning(s"Asked to remove block $blockId, which does not exist")
case Some(info) =>
- // Removals are idempotent in disk store and memory store. At
worst, we get a warning.
- val removedFromMemory = memoryStore.remove(blockId)
- val removedFromDisk = diskStore.remove(blockId)
- if (!removedFromMemory && !removedFromDisk) {
- logWarning(s"Block $blockId could not be removed as it was not
found in either " +
- "the disk, memory, or external block store")
- }
- blockInfoManager.removeBlock(blockId)
- val removeBlockStatus = getCurrentBlockStatus(blockId, info)
- if (tellMaster && info.tellMaster) {
- reportBlockStatus(blockId, info, removeBlockStatus)
- }
- Option(TaskContext.get()).foreach { c =>
- c.taskMetrics().incUpdatedBlockStatuses(blockId ->
removeBlockStatus)
- }
+ removeBlockInternal(blockId, info, tellMaster)
+ }
+ }
+
+ /**
+ * Internal version of [[removeBlock()]] which assumes that the caller
already holds a write
+ * lock on the block.
+ */
+ private def removeBlockInternal(blockId: BlockId, info: BlockInfo,
tellMaster: Boolean): Unit = {
+ // Removals are idempotent in disk store and memory store. At worst,
we get a warning.
+ val removedFromMemory = memoryStore.remove(blockId)
+ val removedFromDisk = diskStore.remove(blockId)
+ if (!removedFromMemory && !removedFromDisk) {
+ logWarning(s"Block $blockId could not be removed as it was not found
in either " +
--- End diff --
Hmm, you're actually only removing from memory and disk, but the warning
mentions an external block store.
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