[FLINK-8943] Jobs will not recover if DFS is temporarily unavailable

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.4.2, 1.5.0, 1.6.0
• Fix Version/s: 1.5.0
• Component/s: Runtime / Coordination
• Labels: flip6
• Assignee: Till Rohrmann
• Reporter: Gary Yao
• Created: 14/Mar/18 14:13
• Updated: 28/Mar/18 20:17
• Resolved: 28/Mar/18 20:17

Description

Description
Job graphs will be recovered only once from the DFS. If the DFS is unavailable at the recovery attempt, the jobs will simply be not running until the master is restarted again.

Steps to reproduce

1. Submit job on Flink Cluster with HDFS as HA storage dir.
2. Trigger job recovery by killing the master
3. Stop HDFS NameNode
4. Enable HDFS NameNode after job recovery is over
5. Verify that job is not running.

Expected behavior
The new master should fail fast and exit. The new master should re-attempt the recovery.

Stacktrace

2018-03-14 14:01:37,704 ERROR org.apache.flink.runtime.dispatcher.StandaloneDispatcher      - Could not recover the job graph for a41d50b6f3ac16a730dd12792a847c97.
org.apache.flink.util.FlinkException: Could not retrieve submitted JobGraph from state handle under /a41d50b6f3ac16a730dd12792a847c97. This indicates that the retrieved state handle is broken. Try cleaning the state handle store.
	at org.apache.flink.runtime.jobmanager.ZooKeeperSubmittedJobGraphStore.recoverJobGraph(ZooKeeperSubmittedJobGraphStore.java:192)
	at org.apache.flink.runtime.dispatcher.Dispatcher.lambda$recoverJobs$5(Dispatcher.java:557)
	at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:39)
	at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:415)
	at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
	at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
	at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
	at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.net.ConnectException: Call From ip-172-31-43-54/172.31.43.54 to ip-172-31-32-118.eu-central-1.compute.internal:9000 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:801)
	at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:732)
	at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1493)
	at org.apache.hadoop.ipc.Client.call(Client.java:1435)
	at org.apache.hadoop.ipc.Client.call(Client.java:1345)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:227)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:116)
	at com.sun.proxy.$Proxy10.getBlockLocations(Unknown Source)
	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getBlockLocations(ClientNamenodeProtocolTranslatorPB.java:259)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:409)
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:163)
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:155)
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:346)
	at com.sun.proxy.$Proxy11.getBlockLocations(Unknown Source)
	at org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:843)
	at org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:832)
	at org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:821)
	at org.apache.hadoop.hdfs.DFSInputStream.fetchLocatedBlocksAndGetLastBlockLength(DFSInputStream.java:325)
	at org.apache.hadoop.hdfs.DFSInputStream.openInfo(DFSInputStream.java:285)
	at org.apache.hadoop.hdfs.DFSInputStream.<init>(DFSInputStream.java:270)
	at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:1132)
	at org.apache.hadoop.hdfs.DistributedFileSystem$4.doCall(DistributedFileSystem.java:325)
	at org.apache.hadoop.hdfs.DistributedFileSystem$4.doCall(DistributedFileSystem.java:322)
	at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
	at org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:322)
	at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:787)
	at org.apache.flink.runtime.fs.hdfs.HadoopFileSystem.open(HadoopFileSystem.java:119)
	at org.apache.flink.runtime.fs.hdfs.HadoopFileSystem.open(HadoopFileSystem.java:36)
	at org.apache.flink.runtime.state.filesystem.FileStateHandle.openInputStream(FileStateHandle.java:68)
	at org.apache.flink.runtime.state.RetrievableStreamStateHandle.openInputStream(RetrievableStreamStateHandle.java:64)
	at org.apache.flink.runtime.state.RetrievableStreamStateHandle.retrieveState(RetrievableStreamStateHandle.java:57)
	at org.apache.flink.runtime.jobmanager.ZooKeeperSubmittedJobGraphStore.recoverJobGraph(ZooKeeperSubmittedJobGraphStore.java:186)
	... 7 more
Caused by: java.net.ConnectException: Connection refused
	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
	at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531)
	at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:685)
	at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:788)
	at org.apache.hadoop.ipc.Client$Connection.access$3500(Client.java:410)
	at org.apache.hadoop.ipc.Client.getConnection(Client.java:1550)
	at org.apache.hadoop.ipc.Client.call(Client.java:1381)
	... 40 more

Issue Links

• links to: GitHub Pull Request #5746