From 32868f31f88aebd580ab9329dc51a30c26af7a74 Mon Sep 17 00:00:00 2001 From: Tathagata Das Date: Thu, 8 May 2014 22:34:08 -0700 Subject: [PATCH] Converted bang to ask to avoid scary warning when a block is removed Removing a block through the blockmanager gave a scary warning messages in the driver. ``` 2014-05-08 20:16:19,172 WARN BlockManagerMasterActor: Got unknown message: true 2014-05-08 20:16:19,172 WARN BlockManagerMasterActor: Got unknown message: true 2014-05-08 20:16:19,172 WARN BlockManagerMasterActor: Got unknown message: true ``` This is because the [BlockManagerSlaveActor](https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/storage/BlockManagerSlaveActor.scala#L44) would send back an acknowledgement ("true"). But the BlockManagerMasterActor would have sent the RemoveBlock message as a send, not as ask(), so would reject the receiver "true" as a unknown message. @pwendell Author: Tathagata Das Closes #708 from tdas/bm-fix and squashes the following commits: ed4ef15 [Tathagata Das] Converted bang to ask to avoid scary warning when a block is removed. --- .../org/apache/spark/storage/BlockManagerMasterActor.scala | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/core/src/main/scala/org/apache/spark/storage/BlockManagerMasterActor.scala b/core/src/main/scala/org/apache/spark/storage/BlockManagerMasterActor.scala index 98fa0df6ec289..6aed322eeb185 100644 --- a/core/src/main/scala/org/apache/spark/storage/BlockManagerMasterActor.scala +++ b/core/src/main/scala/org/apache/spark/storage/BlockManagerMasterActor.scala @@ -250,7 +250,7 @@ class BlockManagerMasterActor(val isLocal: Boolean, conf: SparkConf, listenerBus // Remove the block from the slave's BlockManager. // Doesn't actually wait for a confirmation and the message might get lost. // If message loss becomes frequent, we should add retry logic here. - blockManager.get.slaveActor ! RemoveBlock(blockId) + blockManager.get.slaveActor.ask(RemoveBlock(blockId))(akkaTimeout) } } }