[SPARK-26728] Make rdd.unpersist blocking configurable - ASF JIRA

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Details

Type: Improvement
Status: Resolved
Priority: Major
Resolution: Won't Fix
Affects Version/s: 2.1.0, 2.4.0
Fix Version/s: None
Component/s: Spark Core
Labels:
None

Description

Currently, rdd.unpersist's blocking argument is set to true by default. However, in actual production cluster(especially large cluster), node lost or network issue can always happen.

Users always use rdd.unpersist as non-exceptional, so sometimes the blocking unpersist may cause user's job failure, and this happened many times in our cluster.

2018-05-16,13:28:33,489 WARN org.apache.spark.storage.BlockManagerMaster: Failed to remove RDD 15 - Failed to send RPC 7571440800577648876 to c3-hadoop-prc-st2325.bj/10.136.136.25:43474: java.nio.channels.ClosedChannelException
java.io.IOException: Failed to send RPC 7571440800577648876 to c3-hadoop-prc-st2325.bj/10.136.136.25:43474: java.nio.channels.ClosedChannelException
	at org.apache.spark.network.client.TransportClient$3.operationComplete(TransportClient.java:239)
	at org.apache.spark.network.client.TransportClient$3.operationComplete(TransportClient.java:226)
	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:567)
	at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:424)
	at io.netty.channel.AbstractChannel$AbstractUnsafe.safeSetFailure(AbstractChannel.java:801)
	at io.netty.channel.AbstractChannel$AbstractUnsafe.write(AbstractChannel.java:699)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.write(DefaultChannelPipeline.java:1122)
	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:633)
	at io.netty.channel.AbstractChannelHandlerContext.access$1900(AbstractChannelHandlerContext.java:32)
	at io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.write(AbstractChannelHandlerContext.java:908)
	at io.netty.channel.AbstractChannelHandlerContext$WriteAndFlushTask.write(AbstractChannelHandlerContext.java:960)
	at io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.run(AbstractChannelHandlerContext.java:893)
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:357)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.nio.channels.ClosedChannelException
2018-05-16,13:28:33,489 ERROR org.apache.spark.deploy.yarn.ApplicationMaster: User class threw exception: java.io.IOException: Failed to send RPC 7571440800577648876 to c3-hadoop-prc-st2325.bj/10.136.136.25:43474: java.nio.channels.ClosedChannelException
java.io.IOException: Failed to send RPC 7571440800577648876 to c3-hadoop-prc-st2325.bj/10.136.136.25:43474: java.nio.channels.ClosedChannelException
	at org.apache.spark.network.client.TransportClient$3.operationComplete(TransportClient.java:239)
	at org.apache.spark.network.client.TransportClient$3.operationComplete(TransportClient.java:226)
	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:567)
	at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:424)
	at io.netty.channel.AbstractChannel$AbstractUnsafe.safeSetFailure(AbstractChannel.java:801)
	at io.netty.channel.AbstractChannel$AbstractUnsafe.write(AbstractChannel.java:699)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.write(DefaultChannelPipeline.java:1122)
	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:633)
	at io.netty.channel.AbstractChannelHandlerContext.access$1900(AbstractChannelHandlerContext.java:32)
	at io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.write(AbstractChannelHandlerContext.java:908)
	at io.netty.channel.AbstractChannelHandlerContext$WriteAndFlushTask.write(AbstractChannelHandlerContext.java:960)
	at io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.run(AbstractChannelHandlerContext.java:893)
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:357)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.nio.channels.ClosedChannelException

I think we can make this blocking argument as a config, so that we can control the default value of it with gray scale systems.