XComp edited a comment on pull request #15945:
URL: https://github.com/apache/flink/pull/15945#issuecomment-844846086


   We had this problem come up in another thread of @Airblader : The failure 
that might have also caused the issue in FLINK-22688 is that the Task gets 
scheduled but the TaskManager does not confirm the slot allocation due to 
network issues or the TaskManager becoming unavailable. We run into a slot 
request timeout triggering a `NoResourceAvailableException` for the job. The 
`TaskManagerLocation` was not set in that case, yet. 
   
   The corresponding stacktrace looks like that:
   ```
   2021-05-20 07:26:01,797 INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - Source: 
TableSourceScan(table=[[vvp, default, X]], fields=[id, ts]) -> 
WatermarkAssigner(rowtime=[ts], watermark=[ts]) -> Calc(select=[id, ts, 1 AS 
EXPR$2]) -> NotNullEnforcer(fields=[EXPR$2]) -> Sink: Collect table sink (1/1) 
(9021f1bcfe25206761e553828b063614) switched from SCHEDULED to FAILED on 
[unassigned resource].
   java.util.concurrent.CompletionException: 
org.apache.flink.runtime.jobmanager.scheduler.NoResourceAvailableException: 
Could not acquire the minimum required resources.
           at 
java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
 ~[?:1.8.0_292]
           at 
java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
 ~[?:1.8.0_292]
           at 
java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:607) 
~[?:1.8.0_292]
           at 
java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:591)
 ~[?:1.8.0_292]
           at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) 
~[?:1.8.0_292]
           at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
 ~[?:1.8.0_292]
           at 
org.apache.flink.runtime.jobmaster.slotpool.DeclarativeSlotPoolBridge$PendingRequest.failRequest(DeclarativeSlotPoolBridge.java:532)
 ~[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
org.apache.flink.runtime.jobmaster.slotpool.DeclarativeSlotPoolBridge.cancelPendingRequests(DeclarativeSlotPoolBridge.java:128)
 ~[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
org.apache.flink.runtime.jobmaster.slotpool.DeclarativeSlotPoolBridge.failPendingRequests(DeclarativeSlotPoolBridge.java:360)
 ~[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
org.apache.flink.runtime.jobmaster.slotpool.DeclarativeSlotPoolBridge.notifyNotEnoughResourcesAvailable(DeclarativeSlotPoolBridge.java:351)
 ~[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
org.apache.flink.runtime.jobmaster.JobMaster.notifyNotEnoughResourcesAvailable(JobMaster.java:816)
 ~[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
~[?:1.8.0_292]
           at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
~[?:1.8.0_292]
           at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 ~[?:1.8.0_292]
           at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_292]
           at 
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:301)
 ~[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:212)
 ~[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:77)
 ~[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:158)
 ~[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at scala.PartialFunction.applyOrElse(PartialFunction.scala:123) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at scala.PartialFunction.applyOrElse$(PartialFunction.scala:122) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at akka.actor.Actor.aroundReceive(Actor.scala:517) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at akka.actor.Actor.aroundReceive$(Actor.scala:515) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:225) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at akka.actor.ActorCell.receiveMessage(ActorCell.scala:592) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at akka.actor.ActorCell.invoke(ActorCell.scala:561) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at akka.dispatch.Mailbox.run(Mailbox.scala:225) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at akka.dispatch.Mailbox.exec(Mailbox.scala:235) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           at 
akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) 
[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
   Caused by: 
org.apache.flink.runtime.jobmanager.scheduler.NoResourceAvailableException: 
Could not acquire the minimum required resources.
           at 
org.apache.flink.runtime.jobmaster.slotpool.DeclarativeSlotPoolBridge.failPendingRequests(DeclarativeSlotPoolBridge.java:356)
 ~[flink-dist_2.12-1.13.0-stream1-SNAPSHOT.jar:1.13.0-stream1-SNAPSHOT]
           ... 30 more
   ```


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