Elias Levy created FLINK-10617: ---------------------------------- Summary: Restoring job fails because of slot allocation timeout Key: FLINK-10617 URL: https://issues.apache.org/jira/browse/FLINK-10617 Project: Flink Issue Type: Bug Components: ResourceManager, TaskManager Affects Versions: 1.6.1 Reporter: Elias Levy
The following may be related to FLINK-9932, but I am unsure. If you believe it is, go ahead and close this issue and a duplicate. While trying to test local state recovery on a job with large state, the job failed to be restored because slot allocation timed out. The job is running on a standalone cluster with 12 nodes and 96 task slots (8 per node). The job has parallelism of 96, so it consumes all of the slots, and has ~200 GB of state in RocksDB. To test local state recovery I decided to kill one of the TMs. The TM immediately restarted and re-registered with the JM. I confirmed the JM showed 96 registered task slots. {noformat} 21:35:44,616 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Resolved ResourceManager address, beginning registration 21:35:44,616 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Registration at ResourceManager attempt 1 (timeout=100ms) 21:35:44,640 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Successful registration at resource manager akka.tcp://flink@172.31.18.172:6123/user/resourcemanager under registration id 302988dea6afbd613bb2f96429b65d18. 21:36:49,667 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Receive slot request AllocationID{4274d96a59d370305520876f5b84fb9f} for job 87c61e8ee64cdbd50f191d39610eb58f from resource manager with leader id 8e06aa64d5f8961809da38fe7f224cc1. 21:36:49,667 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Allocated slot for AllocationID{4274d96a59d370305520876f5b84fb9f}. 21:36:49,667 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Add job 87c61e8ee64cdbd50f191d39610eb58f for job leader monitoring. 21:36:49,668 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Starting ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,671 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Try to register at job manager akka.tcp://flink@172.31.18.172:6123/user/jobmanager_3 with leader id f85f6f9b-7713-4be3-a8f0-8443d91e5e6d. 21:36:49,681 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Receive slot request AllocationID{3a64e2c8c5b22adbcfd3ffcd2b49e7f9} for job 87c61e8ee64cdbd50f191d39610eb58f from resource manager with leader id 8e06aa64d5f8961809da38fe7f224cc1. 21:36:49,681 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Allocated slot for AllocationID{3a64e2c8c5b22adbcfd3ffcd2b49e7f9}. 21:36:49,681 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Add job 87c61e8ee64cdbd50f191d39610eb58f for job leader monitoring. 21:36:49,681 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Stopping ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,681 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Starting ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,683 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Try to register at job manager akka.tcp://flink@172.31.18.172:6123/user/jobmanager_3 with leader id f85f6f9b-7713-4be3-a8f0-8443d91e5e6d. 21:36:49,687 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Resolved JobManager address, beginning registration 21:36:49,687 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Resolved JobManager address, beginning registration 21:36:49,687 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Receive slot request AllocationID{740caf20a5f7f767864122dc9a7444d9} for job 87c61e8ee64cdbd50f191d39610eb58f from resource manager with leader id 8e06aa64d5f8961809da38fe7f224cc1. 21:36:49,688 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Registration at JobManager attempt 1 (timeout=100ms) 21:36:49,688 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Allocated slot for AllocationID{740caf20a5f7f767864122dc9a7444d9}. 21:36:49,688 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Add job 87c61e8ee64cdbd50f191d39610eb58f for job leader monitoring. 21:36:49,688 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Stopping ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,688 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Starting ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,689 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Receive slot request AllocationID{2ca95a9b9ccbd23d235b338d9aff7e56} for job 87c61e8ee64cdbd50f191d39610eb58f from resource manager with leader id 8e06aa64d5f8961809da38fe7f224cc1. 21:36:49,689 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Allocated slot for AllocationID{2ca95a9b9ccbd23d235b338d9aff7e56}. 21:36:49,689 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Add job 87c61e8ee64cdbd50f191d39610eb58f for job leader monitoring. 21:36:49,689 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Stopping ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,689 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Starting ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,694 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Receive slot request AllocationID{0521fab5d106362671db3b18031685a7} for job 87c61e8ee64cdbd50f191d39610eb58f from resource manager with leader id 8e06aa64d5f8961809da38fe7f224cc1. 21:36:49,694 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Allocated slot for AllocationID{0521fab5d106362671db3b18031685a7}. 21:36:49,694 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Try to register at job manager akka.tcp://flink@172.31.18.172:6123/user/jobmanager_3 with leader id f85f6f9b-7713-4be3-a8f0-8443d91e5e6d. 21:36:49,694 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Add job 87c61e8ee64cdbd50f191d39610eb58f for job leader monitoring. 21:36:49,694 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Stopping ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,695 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Starting ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,696 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Receive slot request AllocationID{f88e958c2c13a27f6ebaca68892c6554} for job 87c61e8ee64cdbd50f191d39610eb58f from resource manager with leader id 8e06aa64d5f8961809da38fe7f224cc1. 21:36:49,696 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Allocated slot for AllocationID{f88e958c2c13a27f6ebaca68892c6554}. 21:36:49,696 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Add job 87c61e8ee64cdbd50f191d39610eb58f for job leader monitoring. 21:36:49,696 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Stopping ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,696 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Starting ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,698 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Receive slot request AllocationID{229f7519d895335cff7b577364d3f034} for job 87c61e8ee64cdbd50f191d39610eb58f from resource manager with leader id 8e06aa64d5f8961809da38fe7f224cc1. 21:36:49,698 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Allocated slot for AllocationID{229f7519d895335cff7b577364d3f034}. 21:36:49,698 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Add job 87c61e8ee64cdbd50f191d39610eb58f for job leader monitoring. 21:36:49,698 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Stopping ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,698 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Starting ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,699 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Resolved JobManager address, beginning registration 21:36:49,699 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Receive slot request AllocationID{98341da2fd62db5e0a775dd9196a522e} for job 87c61e8ee64cdbd50f191d39610eb58f from resource manager with leader id 8e06aa64d5f8961809da38fe7f224cc1. 21:36:49,700 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Allocated slot for AllocationID{98341da2fd62db5e0a775dd9196a522e}. 21:36:49,700 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Add job 87c61e8ee64cdbd50f191d39610eb58f for job leader monitoring. 21:36:49,700 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Stopping ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,700 INFO org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService - Starting ZooKeeperLeaderRetrievalService /leader/87c61e8ee64cdbd50f191d39610eb58f/job_manager_lock. 21:36:49,703 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Try to register at job manager akka.tcp://flink@172.31.18.172:6123/user/jobmanager_3 with leader id f85f6f9b-7713-4be3-a8f0-8443d91e5e6d. 21:36:49,706 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Resolved JobManager address, beginning registration 21:36:49,706 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Registration at JobManager attempt 1 (timeout=100ms) 21:36:49,708 INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Successful registration at job manager akka.tcp://flink@172.31.18.172:6123/user/jobmanager_3 for job 87c61e8ee64cdbd50f191d39610eb58f. 21:36:49,709 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Establish JobManager connection for job 87c61e8ee64cdbd50f191d39610eb58f. 21:36:49,712 INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Offer reserved slots to the leader of job 87c61e8ee64cdbd50f191d39610eb58f. 21:36:49,713 INFO org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Activate slot AllocationID{229f7519d895335cff7b577364d3f034}. 21:36:49,713 INFO org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Activate slot AllocationID{98341da2fd62db5e0a775dd9196a522e}. 21:36:49,713 INFO org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Activate slot AllocationID{f88e958c2c13a27f6ebaca68892c6554}. 21:36:49,713 INFO org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Activate slot AllocationID{0521fab5d106362671db3b18031685a7}. 21:36:49,713 INFO org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Activate slot AllocationID{4274d96a59d370305520876f5b84fb9f}. 21:36:49,713 INFO org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Activate slot AllocationID{3a64e2c8c5b22adbcfd3ffcd2b49e7f9}. 21:36:49,713 INFO org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Activate slot AllocationID{2ca95a9b9ccbd23d235b338d9aff7e56}. 21:36:49,713 INFO org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Activate slot AllocationID{740caf20a5f7f767864122dc9a7444d9}. {noformat} Alas, the job failed to restore, timing out. JM logs show it requests 8 slots, but that some timeout, causing the restore to fail: {noformat} 21:36:49,716 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Requesting new slot [SlotRequestId{4e63f5ba519d83764a2e06611285d930}] and profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} from resource manager. 21:36:49,716 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Requesting new slot [SlotRequestId{7fa61d06d579e3ac55456b46e7f6333e}] and profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} from resource manager. 21:36:49,716 INFO org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Request slot with profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} for job 87c61e8ee64cdbd50f191d39610eb58f with allocation id AllocationID{f5b48cd43ba142fe90f73acc7e69ae76}. 21:36:49,716 INFO org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Request slot with profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} for job 87c61e8ee64cdbd50f191d39610eb58f with allocation id AllocationID{a12f5de011daeb570b9afacf7d3241ab}. 21:36:49,716 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Requesting new slot [SlotRequestId{a7197d88984291a7b89beda98ae351d4}] and profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} from resource manager. 21:36:49,717 INFO org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Request slot with profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} for job 87c61e8ee64cdbd50f191d39610eb58f with allocation id AllocationID{352b4ea7d7bfe4f4910f5c40c96d1684}. 21:36:49,717 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Requesting new slot [SlotRequestId{c88a96628d5a13e5ee14371f62f45866}] and profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} from resource manager. 21:36:49,717 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Requesting new slot [SlotRequestId{e81eb2b9ef6bf9b5a6f2299b69328b80}] and profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} from resource manager. 21:36:49,717 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Requesting new slot [SlotRequestId{dfa16526ccec6297ba6587d9fbd60993}] and profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} from resource manager. 21:36:49,717 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Requesting new slot [SlotRequestId{10ad63aceecbb72a709f57b3a6f13437}] and profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} from resource manager. 21:36:49,719 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Requesting new slot [SlotRequestId{8462b3a4890330f261ab41208e863d00}] and profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} from resource manager. 21:36:49,717 INFO org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Request slot with profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} for job 87c61e8ee64cdbd50f191d39610eb58f with allocation id AllocationID{eff7d3b200a6c225fb3c49ab5d5fc5b4}. 21:36:49,719 INFO org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Request slot with profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} for job 87c61e8ee64cdbd50f191d39610eb58f with allocation id AllocationID{54dea082f27a4c6848fd539292c78e83}. 21:36:49,719 INFO org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Request slot with profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} for job 87c61e8ee64cdbd50f191d39610eb58f with allocation id AllocationID{e69fb15ef711f56b7582f8e507f30af2}. 21:36:49,719 INFO org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Request slot with profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} for job 87c61e8ee64cdbd50f191d39610eb58f with allocation id AllocationID{8d2711dd73157f929263e08db873334f}. 21:36:49,719 INFO org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Request slot with profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} for job 87c61e8ee64cdbd50f191d39610eb58f with allocation id AllocationID{2480907777440beb3accbb559b060a3c}. 21:41:49,716 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Pending slot request [SlotRequestId{4e63f5ba519d83764a2e06611285d930}] timed out. 21:41:49,717 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Pending slot request [SlotRequestId{7fa61d06d579e3ac55456b46e7f6333e}] timed out. 21:41:49,717 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Pending slot request [SlotRequestId{a7197d88984291a7b89beda98ae351d4}] timed out. 21:41:49,719 INFO org.apache.flink.runtime.executiongraph.ExecutionGraph - Job Foo (87c61e8ee64cdbd50f191d39610eb58f) switched from state RUNNING to FAILING. Could not allocate all requires slots within timeout of 300000 ms. Slots required: 384, slots allocated: 369 org.apache.flink.runtime.executiongraph.ExecutionGraph.lambda$scheduleEager$3(ExecutionGraph.java:984) java.util.concurrent.CompletableFuture.uniExceptionally(Unknown Source) java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(Unknown Source) java.util.concurrent.CompletableFuture.postComplete(Unknown Source) java.util.concurrent.CompletableFuture.completeExceptionally(Unknown Source) org.apache.flink.runtime.concurrent.FutureUtils$ResultConjunctFuture.handleCompletedFuture(FutureUtils.java:534) java.util.concurrent.CompletableFuture.uniWhenComplete(Unknown Source) java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(Unknown Source) java.util.concurrent.CompletableFuture.postComplete(Unknown Source) java.util.concurrent.CompletableFuture.completeExceptionally(Unknown Source) org.apache.flink.runtime.concurrent.FutureUtils$1.onComplete(FutureUtils.java:770) akka.dispatch.OnComplete.internal(Future.scala:258) akka.dispatch.OnComplete.internal(Future.scala:256) akka.dispatch.japi$CallbackBridge.apply(Future.scala:186) akka.dispatch.japi$CallbackBridge.apply(Future.scala:183) scala.concurrent.impl.CallbackRunnable.run(Promise.scala:36) org.apache.flink.runtime.concurrent.Executors$DirectExecutionContext.execute(Executors.java:83) scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:44) scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:252) akka.pattern.PromiseActorRef.$bang(AskSupport.scala:534) akka.pattern.PipeToSupport$PipeableFuture$$anonfun$pipeTo$1.applyOrElse(PipeToSupport.scala:20) akka.pattern.PipeToSupport$PipeableFuture$$anonfun$pipeTo$1.applyOrElse(PipeToSupport.scala:18) scala.concurrent.Future$$anonfun$andThen$1.apply(Future.scala:436) scala.concurrent.Future$$anonfun$andThen$1.apply(Future.scala:435) scala.concurrent.impl.CallbackRunnable.run(Promise.scala:36) akka.dispatch.BatchingExecutor$AbstractBatch.processBatch(BatchingExecutor.scala:55) akka.dispatch.BatchingExecutor$BlockableBatch$$anonfun$run$1.apply$mcV$sp(BatchingExecutor.scala:91) akka.dispatch.BatchingExecutor$BlockableBatch$$anonfun$run$1.apply(BatchingExecutor.scala:91) akka.dispatch.BatchingExecutor$BlockableBatch$$anonfun$run$1.apply(BatchingExecutor.scala:91) scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:72) akka.dispatch.BatchingExecutor$BlockableBatch.run(BatchingExecutor.scala:90) akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:39) akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:415) scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) 21:41:49,726 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Pending slot request [SlotRequestId{c88a96628d5a13e5ee14371f62f45866}] timed out. 21:41:49,726 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Pending slot request [SlotRequestId{e81eb2b9ef6bf9b5a6f2299b69328b80}] timed out. 21:41:49,726 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Pending slot request [SlotRequestId{dfa16526ccec6297ba6587d9fbd60993}] timed out. 21:41:49,726 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Pending slot request [SlotRequestId{10ad63aceecbb72a709f57b3a6f13437}] timed out. 21:41:49,726 INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Pending slot request [SlotRequestId{8462b3a4890330f261ab41208e863d00}] timed out. {noformat} This repeats itself until the job is canceled. -- This message was sent by Atlassian JIRA (v7.6.3#76005)