Hi, I am using flink version 1.7.2 , I am trying to use S3 like object storage EMC ECS( https://www.emc.com/techpubs/ecs/ecs_s3_supported_features-1.htm) .
I am using the flink-s3-fs-hadoop-1.7.2.jar file as a dependency for s3 filesystem and I have placed it under the lib folder and is available to flink in its class path. My flink-conf.yaml looks like this : s3.endpoint: SU73ECSG1P1d.***.COM:9021 s3.access-key: vdna_np_user security.ssl.rest.enabled: false web.timeout: 10000 s3.secret-key: J*** And my code for statebackend is like this : env.setStateBackend(new FsStateBackend("s3://aip_featuretoolkit/checkpoints/")) I have a bucket called aip_featuretoolkit in my s3 instance. I can connect to s3 form s3 command line utilities. However I cannot checkpoint with this configuration in flink. I get the following error message Exception in thread "main" org.apache.flink.runtime.client.JobExecutionException: Could not retrieve JobResult. at org.apache.flink.runtime.minicluster.MiniCluster.executeJobBlocking(MiniCluster.java:643) at org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:123) at org.apache.flink.streaming.api.scala.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.scala:654) at com.visa.flink.job.DruidStreamJob$.runJob(DruidStreamJob.scala:62) at com.visa.flink.cli.CliFlinkDruid.run(CliFlinkDruid.scala:19) at com.visa.flink.cli.Main$.main(Main.scala:22) at com.visa.flink.cli.Main.main(Main.scala) Caused by: org.apache.flink.runtime.client.JobSubmissionException: Failed to submit job. at org.apache.flink.runtime.dispatcher.Dispatcher.lambda$submitJob$2(Dispatcher.java:267) at java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:870) at java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:852) at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) at java.util.concurrent.CompletableFuture.postFire(CompletableFuture.java:561) at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:739) at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442) at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:332) at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:158) at org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:70) at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.onReceive(AkkaRpcActor.java:142) at org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.onReceive(FencedAkkaRpcActor.java:40) at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:165) at akka.actor.Actor$class.aroundReceive(Actor.scala:502) at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:95) at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526) at akka.actor.ActorCell.invoke(ActorCell.scala:495) at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257) at akka.dispatch.Mailbox.run(Mailbox.scala:224) at akka.dispatch.Mailbox.exec(Mailbox.scala:234) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) Caused by: java.lang.RuntimeException: org.apache.flink.runtime.client.JobExecutionException: Could not set up JobManager at org.apache.flink.util.function.CheckedSupplier.lambda$unchecked$0(CheckedSupplier.java:36) at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590) at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:39) at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:415) ... 4 more Caused by: org.apache.flink.runtime.client.JobExecutionException: Could not set up JobManager at org.apache.flink.runtime.jobmaster.JobManagerRunner.<init>(JobManagerRunner.java:176) at org.apache.flink.runtime.dispatcher.Dispatcher$DefaultJobManagerRunnerFactory.createJobManagerRunner(Dispatcher.java:1058) at org.apache.flink.runtime.dispatcher.Dispatcher.lambda$createJobManagerRunner$5(Dispatcher.java:308) at org.apache.flink.util.function.CheckedSupplier.lambda$unchecked$0(CheckedSupplier.java:34) ... 7 more Caused by: java.lang.RuntimeException: Failed to start checkpoint ID counter: null uri host. This can be caused by unencoded / in the password string at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.<init>(CheckpointCoordinator.java:255) at org.apache.flink.runtime.executiongraph.ExecutionGraph.enableCheckpointing(ExecutionGraph.java:498) at org.apache.flink.runtime.executiongraph.ExecutionGraphBuilder.buildGraph(ExecutionGraphBuilder.java:345) at org.apache.flink.runtime.executiongraph.ExecutionGraphBuilder.buildGraph(ExecutionGraphBuilder.java:100) at org.apache.flink.runtime.jobmaster.JobMaster.createExecutionGraph(JobMaster.java:1166) at org.apache.flink.runtime.jobmaster.JobMaster.createAndRestoreExecutionGraph(JobMaster.java:1146) at org.apache.flink.runtime.jobmaster.JobMaster.<init>(JobMaster.java:296) at org.apache.flink.runtime.jobmaster.JobManagerRunner.<init>(JobManagerRunner.java:157) ... 10 more Caused by: java.io.IOException: null uri host. This can be caused by unencoded / in the password string at org.apache.flink.fs.s3.common.AbstractS3FileSystemFactory.create(AbstractS3FileSystemFactory.java:159) at org.apache.flink.core.fs.FileSystem.getUnguardedFileSystem(FileSystem.java:395) at org.apache.flink.core.fs.FileSystem.get(FileSystem.java:318) at org.apache.flink.core.fs.Path.getFileSystem(Path.java:298) at org.apache.flink.runtime.state.filesystem.FsCheckpointStorage.<init>(FsCheckpointStorage.java:58) at org.apache.flink.runtime.state.filesystem.FsStateBackend.createCheckpointStorage(FsStateBackend.java:444) at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.<init>(CheckpointCoordinator.java:249) ... 17 more Caused by: java.lang.NullPointerException: null uri host. This can be caused by unencoded / in the password string at java.util.Objects.requireNonNull(Objects.java:228) at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.fs.s3native.S3xLoginHelper.buildFSURI(S3xLoginHelper.java:69) at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.fs.s3a.S3AFileSystem.setUri(S3AFileSystem.java:467) at org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.fs.s3a.S3AFileSystem.initialize(S3AFileSystem.java:234) at org.apache.flink.fs.s3.common.AbstractS3FileSystemFactory.create(AbstractS3FileSystemFactory.java:124) ... 23 more It seems like the way I setup the state backed causes this exception ie. env.setStateBackend(new FsStateBackend("s3://aip_featuretoolkit/checkpoints/")) How can I resolve this issue, are S3 like object stores supported by 1.7.2 ? Thanks, Vishwas