我正在尝试在Kubernetes集群（Azure AKS）中部署Flink作业。刚启动后，作业群集将中止，但任务管理器运行正常。
成功创建docker映像，没有任何异常。我可以运行docker映像，也可以通过SSH到docker映像。
我已遵循以下链接中提到的步骤：
https://github.com/apache/flink/tree/release-1.9/flink-container/kubernetes
在创建映像时，我提供了Job jar，并将其复制到映像中的“ / opt / artifacts”上。但是仍然无法理解为什么在Job Cluster pod日志中低于异常。
Caused by: org.apache.flink.util.FlinkException: Failed to find job JAR on class path. Please provide the job class name explicitly.
我是Kubernetes的新手，请给我一些调试此问题的线索。
请在下面找到完整的日志：
A。 flink-job-cluster Pod日志
develk@ACIDLAELKV01:~/cntx_eng$ kubectl logs flink-job-cluster-kszwf
Starting the job-cluster
Starting standalonejob as a console application on host flink-job-cluster-kszwf.
2019-12-12 10:37:17,170 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - --------------------------------------------------------------------------------
2019-12-12 10:37:17,172 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Starting StandaloneJobClusterEntryPoint (Version: 1.8.0, Rev:4caec0d, Date:03.04.2019 @ 13:25:54 PDT)
2019-12-12 10:37:17,172 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - OS current user: flink
2019-12-12 10:37:17,173 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Current Hadoop/Kerberos user: <no hadoop dependency found>
2019-12-12 10:37:17,173 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - JVM: OpenJDK 64-Bit Server VM - IcedTea - 1.8/25.212-b04
2019-12-12 10:37:17,173 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Maximum heap size: 989 MiBytes
2019-12-12 10:37:17,173 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - JAVA_HOME: /usr/lib/jvm/java-1.8-openjdk/jre
2019-12-12 10:37:17,174 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - No Hadoop Dependency available
2019-12-12 10:37:17,174 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - JVM Options:
2019-12-12 10:37:17,174 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - -Xms1024m
2019-12-12 10:37:17,174 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - -Xmx1024m
2019-12-12 10:37:17,174 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - -Dlog4j.configuration=file:/opt/flink-1.8.0/conf/log4j-console.properties
2019-12-12 10:37:17,175 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - -Dlogback.configurationFile=file:/opt/flink-1.8.0/conf/logback-console.xml
2019-12-12 10:37:17,175 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Program Arguments:
2019-12-12 10:37:17,175 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - --configDir
2019-12-12 10:37:17,175 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - /opt/flink-1.8.0/conf
2019-12-12 10:37:17,175 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - -Djobmanager.rpc.address=flink-job-cluster
2019-12-12 10:37:17,175 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - -Dparallelism.default=1
2019-12-12 10:37:17,176 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - -Dblob.server.port=6124
2019-12-12 10:37:17,176 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - -Dqueryable-state.server.ports=6125
2019-12-12 10:37:17,176 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Classpath: /opt/flink-1.8.0/lib/log4j-1.2.17.jar:/opt/flink-1.8.0/lib/slf4j-log4j12-1.7.15.jar:/opt/flink-1.8.0/lib/flink-dist_2.11-1.8.0.jar:::
2019-12-12 10:37:17,176 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - --------------------------------------------------------------------------------
2019-12-12 10:37:17,178 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Registered UNIX signal handlers for [TERM, HUP, INT]
2019-12-12 10:37:17,306 INFO org.apache.flink.configuration.GlobalConfiguration - Loading configuration property: jobmanager.rpc.address, localhost
2019-12-12 10:37:17,306 INFO org.apache.flink.configuration.GlobalConfiguration - Loading configuration property: jobmanager.rpc.port, 6123
2019-12-12 10:37:17,307 INFO org.apache.flink.configuration.GlobalConfiguration - Loading configuration property: jobmanager.heap.size, 1024m
2019-12-12 10:37:17,307 INFO org.apache.flink.configuration.GlobalConfiguration - Loading configuration property: taskmanager.heap.size, 1024m
2019-12-12 10:37:17,307 INFO org.apache.flink.configuration.GlobalConfiguration - Loading configuration property: taskmanager.numberOfTaskSlots, 1
2019-12-12 10:37:17,307 INFO org.apache.flink.configuration.GlobalConfiguration - Loading configuration property: parallelism.default, 1
2019-12-12 10:37:17,336 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Starting StandaloneJobClusterEntryPoint.
2019-12-12 10:37:17,336 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Install default filesystem.
2019-12-12 10:37:17,343 INFO org.apache.flink.core.fs.FileSystem - Hadoop is not in the classpath/dependencies. The extended set of supported File Systems via Hadoop is not available.
2019-12-12 10:37:17,352 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Install security context.
2019-12-12 10:37:17,362 INFO org.apache.flink.runtime.security.modules.HadoopModuleFactory - Cannot create Hadoop Security Module because Hadoop cannot be found in the Classpath.
2019-12-12 10:37:17,381 INFO org.apache.flink.runtime.security.SecurityUtils - Cannot install HadoopSecurityContext because Hadoop cannot be found in the Classpath.
2019-12-12 10:37:17,382 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Initializing cluster services.
2019-12-12 10:37:17,638 INFO org.apache.flink.runtime.rpc.akka.AkkaRpcServiceUtils - Trying to start actor system at flink-job-cluster:6123
2019-12-12 10:37:18,163 INFO akka.event.slf4j.Slf4jLogger - Slf4jLogger started
2019-12-12 10:37:18,237 INFO akka.remote.Remoting - Starting remoting
2019-12-12 10:37:18,366 INFO akka.remote.Remoting - Remoting started; listening on addresses :[akka.tcp://flink@flink-job-cluster:6123]
2019-12-12 10:37:18,375 INFO org.apache.flink.runtime.rpc.akka.AkkaRpcServiceUtils - Actor system started at akka.tcp://flink@flink-job-cluster:6123
2019-12-12 10:37:18,398 INFO org.apache.flink.configuration.Configuration - Config uses fallback configuration key 'jobmanager.rpc.address' instead of key 'rest.address'
2019-12-12 10:37:18,407 INFO org.apache.flink.runtime.blob.BlobServer - Created BLOB server storage directory /tmp/blobStore-63338044-67c1-4872-a3d9-c94563b3a7c3
2019-12-12 10:37:18,412 INFO org.apache.flink.runtime.blob.BlobServer - Started BLOB server at 0.0.0.0:6124 - max concurrent requests: 50 - max backlog: 1000
2019-12-12 10:37:18,428 INFO org.apache.flink.runtime.metrics.MetricRegistryImpl - No metrics reporter configured, no metrics will be exposed/reported.
2019-12-12 10:37:18,430 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Trying to start actor system at flink-job-cluster:0
2019-12-12 10:37:18,464 INFO akka.event.slf4j.Slf4jLogger - Slf4jLogger started
2019-12-12 10:37:18,472 INFO akka.remote.Remoting - Starting remoting
2019-12-12 10:37:18,480 INFO akka.remote.Remoting - Remoting started; listening on addresses :[akka.tcp://flink-metrics@flink-job-cluster:33529]
2019-12-12 10:37:18,482 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Actor system started at akka.tcp://flink-metrics@flink-job-cluster:33529
2019-12-12 10:37:18,490 INFO org.apache.flink.runtime.blob.TransientBlobCache - Created BLOB cache storage directory /tmp/blobStore-ba64dcdb-5095-41fc-9c98-0f1528d95c40
2019-12-12 10:37:18,514 INFO org.apache.flink.configuration.Configuration - Config uses fallback configuration key 'jobmanager.rpc.address' instead of key 'rest.address'
2019-12-12 10:37:18,515 WARN org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint - Upload directory /tmp/flink-web-f6be0c2d-5099-4bd6-bc72-a0ae1fc6448e/flink-web-upload does not exist, or has been deleted externally. Previously uploaded files are no longer available.
2019-12-12 10:37:18,516 INFO org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint - Created directory /tmp/flink-web-f6be0c2d-5099-4bd6-bc72-a0ae1fc6448e/flink-web-upload for file uploads.
2019-12-12 10:37:18,603 INFO org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint - Starting rest endpoint.
2019-12-12 10:37:18,872 WARN org.apache.flink.runtime.webmonitor.WebMonitorUtils - Log file environment variable 'log.file' is not set.
2019-12-12 10:37:18,872 WARN org.apache.flink.runtime.webmonitor.WebMonitorUtils - JobManager log files are unavailable in the web dashboard. Log file location not found in environment variable 'log.file' or configuration key 'Key: 'web.log.path' , default: null (fallback keys: [{key=jobmanager.web.log.path, isDeprecated=true}])'.
2019-12-12 10:37:19,115 INFO org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint - Rest endpoint listening at flink-job-cluster:8081
2019-12-12 10:37:19,116 INFO org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint - http://flink-job-cluster:8081 was granted leadership with leaderSessionID=00000000-0000-0000-0000-000000000000
2019-12-12 10:37:19,116 INFO org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint - Web frontend listening at http://flink-job-cluster:8081.
2019-12-12 10:37:19,239 INFO org.apache.flink.runtime.rpc.akka.AkkaRpcService - Starting RPC endpoint for org.apache.flink.runtime.resourcemanager.StandaloneResourceManager at akka://flink/user/resourcemanager .
2019-12-12 10:37:19,262 INFO org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever - Scanning class path for job JAR
2019-12-12 10:37:19,270 INFO org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint - Shutting down rest endpoint.
2019-12-12 10:37:19,295 INFO org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint - Removing cache directory /tmp/flink-web-f6be0c2d-5099-4bd6-bc72-a0ae1fc6448e/flink-web-ui
2019-12-12 10:37:19,299 INFO org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint - http://flink-job-cluster:8081 lost leadership
2019-12-12 10:37:19,299 INFO org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint - Shut down complete.
2019-12-12 10:37:19,302 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Shutting StandaloneJobClusterEntryPoint down with application status FAILED. Diagnostics org.apache.flink.util.FlinkException: Could not create the DispatcherResourceManagerComponent.
at org.apache.flink.runtime.entrypoint.component.AbstractDispatcherResourceManagerComponentFactory.create(AbstractDispatcherResourceManagerComponentFactory.java:257)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runCluster(ClusterEntrypoint.java:224)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.lambda$startCluster$0(ClusterEntrypoint.java:172)
at org.apache.flink.runtime.security.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:171)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runClusterEntrypoint(ClusterEntrypoint.java:535)
at org.apache.flink.container.entrypoint.StandaloneJobClusterEntryPoint.main(StandaloneJobClusterEntryPoint.java:105)
Caused by: org.apache.flink.util.FlinkException: Failed to find job JAR on class path. Please provide the job class name explicitly.
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.getJobClassNameOrScanClassPath(ClassPathJobGraphRetriever.java:131)
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.createPackagedProgram(ClassPathJobGraphRetriever.java:114)
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.retrieveJobGraph(ClassPathJobGraphRetriever.java:96)
at org.apache.flink.runtime.dispatcher.JobDispatcherFactory.createDispatcher(JobDispatcherFactory.java:62)
at org.apache.flink.runtime.dispatcher.JobDispatcherFactory.createDispatcher(JobDispatcherFactory.java:41)
at org.apache.flink.runtime.entrypoint.component.AbstractDispatcherResourceManagerComponentFactory.create(AbstractDispatcherResourceManagerComponentFactory.java:184)
... 6 more
Caused by: java.util.NoSuchElementException: No JAR with manifest attribute for entry class
at org.apache.flink.container.entrypoint.JarManifestParser.findOnlyEntryClass(JarManifestParser.java:80)
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.scanClassPathForJobJar(ClassPathJobGraphRetriever.java:137)
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.getJobClassNameOrScanClassPath(ClassPathJobGraphRetriever.java:129)
... 11 more
.
2019-12-12 10:37:19,305 INFO org.apache.flink.runtime.blob.BlobServer - Stopped BLOB server at 0.0.0.0:6124
2019-12-12 10:37:19,305 INFO org.apache.flink.runtime.blob.TransientBlobCache - Shutting down BLOB cache
2019-12-12 10:37:19,315 INFO org.apache.flink.runtime.rpc.akka.AkkaRpcService - Stopping Akka RPC service.
2019-12-12 10:37:19,320 INFO akka.remote.RemoteActorRefProvider$RemotingTerminator - Shutting down remote daemon.
2019-12-12 10:37:19,321 INFO akka.remote.RemoteActorRefProvider$RemotingTerminator - Shutting down remote daemon.
2019-12-12 10:37:19,323 INFO akka.remote.RemoteActorRefProvider$RemotingTerminator - Remote daemon shut down; proceeding with flushing remote transports.
2019-12-12 10:37:19,325 INFO akka.remote.RemoteActorRefProvider$RemotingTerminator - Remote daemon shut down; proceeding with flushing remote transports.
2019-12-12 10:37:19,354 INFO akka.remote.RemoteActorRefProvider$RemotingTerminator - Remoting shut down.
2019-12-12 10:37:19,356 INFO akka.remote.RemoteActorRefProvider$RemotingTerminator - Remoting shut down.
2019-12-12 10:37:19,378 INFO org.apache.flink.runtime.rpc.akka.AkkaRpcService - Stopped Akka RPC service.
2019-12-12 10:37:19,382 ERROR org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Could not start cluster entrypoint StandaloneJobClusterEntryPoint.
org.apache.flink.runtime.entrypoint.ClusterEntrypointException: Failed to initialize the cluster entrypoint StandaloneJobClusterEntryPoint.
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:190)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runClusterEntrypoint(ClusterEntrypoint.java:535)
at org.apache.flink.container.entrypoint.StandaloneJobClusterEntryPoint.main(StandaloneJobClusterEntryPoint.java:105)
Caused by: org.apache.flink.util.FlinkException: Could not create the DispatcherResourceManagerComponent.
at org.apache.flink.runtime.entrypoint.component.AbstractDispatcherResourceManagerComponentFactory.create(AbstractDispatcherResourceManagerComponentFactory.java:257)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runCluster(ClusterEntrypoint.java:224)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.lambda$startCluster$0(ClusterEntrypoint.java:172)
at org.apache.flink.runtime.security.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:171)
... 2 more
Caused by: org.apache.flink.util.FlinkException: Failed to find job JAR on class path. Please provide the job class name explicitly.
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.getJobClassNameOrScanClassPath(ClassPathJobGraphRetriever.java:131)
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.createPackagedProgram(ClassPathJobGraphRetriever.java:114)
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.retrieveJobGraph(ClassPathJobGraphRetriever.java:96)
at org.apache.flink.runtime.dispatcher.JobDispatcherFactory.createDispatcher(JobDispatcherFactory.java:62)
at org.apache.flink.runtime.dispatcher.JobDispatcherFactory.createDispatcher(JobDispatcherFactory.java:41)
at org.apache.flink.runtime.entrypoint.component.AbstractDispatcherResourceManagerComponentFactory.create(AbstractDispatcherResourceManagerComponentFactory.java:184)
... 6 more
Caused by: java.util.NoSuchElementException: No JAR with manifest attribute for entry class
at org.apache.flink.container.entrypoint.JarManifestParser.findOnlyEntryClass(JarManifestParser.java:80)
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.scanClassPathForJobJar(ClassPathJobGraphRetriever.java:137)
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.getJobClassNameOrScanClassPath(ClassPathJobGraphRetriever.java:129)
... 11 more
develk@ACIDLAELKV01:~/cntx_eng$
现在，我已经在“ job-cluster-job.yaml.template”文件的参数部分中添加了Job类名称。
像下面这样：
args: ["job-cluster",
"--job-classname", "com.flink.wordCountSimple",
"-Djobmanager.rpc.address=flink-job-cluster",
但是在那之后，我得到了例外：
Caused by: org.apache.flink.util.FlinkException: Could not load the provided entrypoint class.
请参阅下面的详细日志。
2019-12-13 19:08:34,323 INFO org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint - Shut down complete.
2019-12-13 19:08:34,329 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Shutting StandaloneJobClusterEntryPoint down with application status FAILED. Diagnostics org.apache.flink.util.FlinkException: Could not create the DispatcherResourceManagerComponent.
at org.apache.flink.runtime.entrypoint.component.AbstractDispatcherResourceManagerComponentFactory.create(AbstractDispatcherResourceManagerComponentFactory.java:257)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runCluster(ClusterEntrypoint.java:224)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.lambda$startCluster$0(ClusterEntrypoint.java:172)
at org.apache.flink.runtime.security.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:171)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runClusterEntrypoint(ClusterEntrypoint.java:535)
at org.apache.flink.container.entrypoint.StandaloneJobClusterEntryPoint.main(StandaloneJobClusterEntryPoint.java:105)
Caused by: org.apache.flink.util.FlinkException: Could not load the provided entrypoint class.
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.createPackagedProgram(ClassPathJobGraphRetriever.java:119)
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.retrieveJobGraph(ClassPathJobGraphRetriever.java:96)
at org.apache.flink.runtime.dispatcher.JobDispatcherFactory.createDispatcher(JobDispatcherFactory.java:62)
at org.apache.flink.runtime.dispatcher.JobDispatcherFactory.createDispatcher(JobDispatcherFactory.java:41)
at org.apache.flink.runtime.entrypoint.component.AbstractDispatcherResourceManagerComponentFactory.create(AbstractDispatcherResourceManagerComponentFactory.java:184)
... 6 more
Caused by: java.lang.ClassNotFoundException: com.flink.wordCountSimple
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.createPackagedProgram(ClassPathJobGraphRetriever.java:116)
... 10 more
.
2019-12-13 19:08:34,337 INFO org.apache.flink.runtime.blob.BlobServer - Stopped BLOB server at 0.0.0.0:6124
2019-12-13 19:08:34,338 INFO org.apache.flink.runtime.blob.TransientBlobCache - Shutting down BLOB cache
2019-12-13 19:08:34,364 INFO org.apache.flink.runtime.rpc.akka.AkkaRpcService - Stopping Akka RPC service.
2019-12-13 19:08:34,368 INFO akka.remote.RemoteActorRefProvider$RemotingTerminator - Shutting down remote daemon.
2019-12-13 19:08:34,372 INFO akka.remote.RemoteActorRefProvider$RemotingTerminator - Remote daemon shut down; proceeding with flushing remote transports.
2019-12-13 19:08:34,392 INFO akka.remote.RemoteActorRefProvider$RemotingTerminator - Shutting down remote daemon.
2019-12-13 19:08:34,392 INFO akka.remote.RemoteActorRefProvider$RemotingTerminator - Remote daemon shut down; proceeding with flushing remote transports.
2019-12-13 19:08:34,406 INFO akka.remote.RemoteActorRefProvider$RemotingTerminator - Remoting shut down.
2019-12-13 19:08:34,410 INFO akka.remote.RemoteActorRefProvider$RemotingTerminator - Remoting shut down.
2019-12-13 19:08:34,434 INFO org.apache.flink.runtime.rpc.akka.AkkaRpcService - Stopped Akka RPC service.
2019-12-13 19:08:34,443 ERROR org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Could not start cluster entrypoint StandaloneJobClusterEntryPoint.
org.apache.flink.runtime.entrypoint.ClusterEntrypointException: Failed to initialize the cluster entrypoint StandaloneJobClusterEntryPoint.
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:190)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runClusterEntrypoint(ClusterEntrypoint.java:535)
at org.apache.flink.container.entrypoint.StandaloneJobClusterEntryPoint.main(StandaloneJobClusterEntryPoint.java:105)
Caused by: org.apache.flink.util.FlinkException: Could not create the DispatcherResourceManagerComponent.
at org.apache.flink.runtime.entrypoint.component.AbstractDispatcherResourceManagerComponentFactory.create(AbstractDispatcherResourceManagerComponentFactory.java:257)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runCluster(ClusterEntrypoint.java:224)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.lambda$startCluster$0(ClusterEntrypoint.java:172)
at org.apache.flink.runtime.security.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30)
at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:171)
... 2 more
Caused by: org.apache.flink.util.FlinkException: Could not load the provided entrypoint class.
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.createPackagedProgram(ClassPathJobGraphRetriever.java:119)
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.retrieveJobGraph(ClassPathJobGraphRetriever.java:96)
at org.apache.flink.runtime.dispatcher.JobDispatcherFactory.createDispatcher(JobDispatcherFactory.java:62)
at org.apache.flink.runtime.dispatcher.JobDispatcherFactory.createDispatcher(JobDispatcherFactory.java:41)
at org.apache.flink.runtime.entrypoint.component.AbstractDispatcherResourceManagerComponentFactory.create(AbstractDispatcherResourceManagerComponentFactory.java:184)
... 6 more
Caused by: java.lang.ClassNotFoundException: com.flink.wordCountSimple
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.apache.flink.container.entrypoint.ClassPathJobGraphRetriever.createPackagedProgram(ClassPathJobGraphRetriever.java:116)
... 10 more
答案 0 :(得分：0)
在https://github.com/alpinegizmo/flink-containers-example中有一个完整的可行示例在kubernetes上创建并运行flink作业集群。也许会有所帮助。另请参见https://www.youtube.com/watch?v=ceZtUDgh2TE。
答案 1 :(得分：0)
version: "2.1"
services:
jobmanager:
build:
context: ./
args:
JAR_FILE: flink-event-tracker-bundled-1.6.0.jar
image: test/flink-event-tracker
expose:
- "6123"
ports:
- "8081:8081"
- "6123:6123"
command: job-cluster --job-classname com.company.test.flink.pipelines.KafkaPipelineConsumer -Djobmanager.rpc.address=jobmanager --runner=FlinkRunner --streaming=true --checkpointingInterval=30000
environment:
- JOB_MANAGER_RPC_ADDRESS=jobmanager
- JOB_MANAGER=jobmanager
volumes:
- data-volume:/docker/volumes
taskmanager:
image: test/flink-event-tracker
expose:
- "6121"
- "6122"
depends_on:
- jobmanager
command: task-manager -Djobmanager.rpc.address=jobmanager
links:
- "jobmanager:jobmanager"
environment:
- JOB_MANAGER_RPC_ADDRESS=jobmanager
- JOB_MANAGER=jobmanager
volumes:
- data-volume:/docker/volumes
volumes:
data-volume:
driver: local
driver_opts:
o: bind
type: none
device: /Users/home/Development/docker/volumes/flink
Docker文件
FROM flink:1.9
ARG JAR_FILE=""
ENV APP_OPTS ""
ENV JAVA_OPTS ""
ENV JOB_MANAGER=""
# Build arg allows passing the version at runtime
ARG VERSION=unset-version
COPY flink-conf.yml $FLINK_HOME/conf/flink-conf.yaml
COPY target/$JAR_FILE $FLINK_HOME/lib/event-tracker.jar
COPY docker-cluster-entrypoint.sh /docker-cluster-entrypoint.sh
RUN apt-get update && apt-get install procps -y && apt-get install curl -y
RUN echo "root:root" | chpasswd
RUN chmod 777 /docker-cluster-entrypoint.sh
RUN chmod 777 $FLINK_HOME/lib/event-tracker.jar
ENTRYPOINT [ "bash","/docker-cluster-entrypoint.sh" ]
docker-cluster-entrypoint.sh
FLINK_HOME=${FLINK_HOME:-"/opt/flink/bin"}
JOB_CLUSTER="job-cluster"
TASK_MANAGER="task-manager"
CMD="$1"
shift;
if [ "${CMD}" = "--help" -o "${CMD}" = "-h" ]; then
echo "Usage: $(basename $0) (${JOB_CLUSTER}|${TASK_MANAGER})"
exit 0
elif [ "${CMD}" = "${JOB_CLUSTER}" -o "${CMD}" = "${TASK_MANAGER}" ]; then
echo "Starting the ${CMD}"
if [ "${CMD}" = "${TASK_MANAGER}" ]; then
exec $FLINK_HOME/bin/taskmanager.sh start-foreground "$@"
else
exec $FLINK_HOME/bin/standalone-job.sh start-foreground "$@"
fi
fi
mvn clean install
docker-compose -f docker-compose.local.yml up --scale taskmanager=2 > exceptionlog.log
docker-compose -f docker-compose.local.yml build
这是运行您的docker的整个conf。但是，如果要在kube中运行，只需将docker-compose文件转换为其相应的kube文件...其余可以保持不变..可能会帮助维护kube更好。
注意：-我们正在使用apache光束对作业进行编码