Till Rohrmann created FLINK-5699:
------------------------------------
Summary: Cancel with savepoint fails with a NPE if savepoint
target directory not set
Key: FLINK-5699
URL: https://issues.apache.org/jira/browse/FLINK-5699
Project: Flink
Issue Type: Bug
Components: State Backends, Checkpointing
Affects Versions: 1.3.0
Reporter: Till Rohrmann
Priority: Minor
When canceling a job with savepoint where one has not configured a savepoint
directory, then the command fails with the following exception
{code}
java.lang.Exception: Canceling the job with ID 663f9769f0f3565b8ebc2acf0091431a
failed.
at org.apache.flink.client.CliFrontend.cancel(CliFrontend.java:633)
at
org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:1082)
at org.apache.flink.client.CliFrontend$2.call(CliFrontend.java:1123)
at org.apache.flink.client.CliFrontend$2.call(CliFrontend.java:1120)
at
org.apache.flink.runtime.security.HadoopSecurityContext$1.run(HadoopSecurityContext.java:43)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
at
org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:40)
at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1120)
Caused by: java.lang.Exception: Failed to cancel job
663f9769f0f3565b8ebc2acf0091431a with savepoint.
at
org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1.applyOrElse(JobManager.scala:634)
at
scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
at
scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
at
scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
at
org.apache.flink.runtime.LeaderSessionMessageFilter$$anonfun$receive$1.applyOrElse(LeaderSessionMessageFilter.scala:36)
at
scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
at
scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
at
scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
at
org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:33)
at
org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:28)
at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:118)
at
org.apache.flink.runtime.LogMessages$$anon$1.applyOrElse(LogMessages.scala:28)
at akka.actor.Actor$class.aroundReceive(Actor.scala:467)
at
org.apache.flink.runtime.jobmanager.JobManager.aroundReceive(JobManager.scala:118)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
at akka.actor.ActorCell.invoke(ActorCell.scala:487)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238)
at akka.dispatch.Mailbox.run(Mailbox.scala:220)
at
akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at
scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at
scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at
scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.lang.NullPointerException: Savepoint target directory
at
org.apache.flink.util.Preconditions.checkNotNull(Preconditions.java:75)
at
org.apache.flink.runtime.checkpoint.CheckpointCoordinator.triggerSavepoint(CheckpointCoordinator.java:296)
at
org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1.applyOrElse(JobManager.scala:598)
... 22 more
{code}
I think we could return a more meaningful exception then the NPE to the user.
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