Hi, 看起来像是依赖冲突问题，报错信息看起来是classpath加载到了两个相同的jar, javax.ws.rs-api-2.1.1.jar 这个jar包是你集群需要的吗？ 可以把你场景说细点，比如这个问题如何复现，这样大家可以帮忙一起排查
祝好， Leonard Xu > 在 2020年7月20日，15:36，酷酷的浑蛋 <[email protected]> 写道： > > > > Flink1.11启动时报错： > java.lang.LinkageError: ClassCastException: attempting to > castjar:file:/data/rt/jar_version/sql/6.jar!/javax/ws/rs/ext/RuntimeDelegate.class > to > jar:file:/data/server/flink-1.11.0/lib/javax.ws.rs-api-2.1.1.jar!/javax/ws/rs/ext/RuntimeDelegate.class > at > javax.ws.rs.ext.RuntimeDelegate.findDelegate(RuntimeDelegate.java:125) > at javax.ws.rs.ext.RuntimeDelegate.getInstance(RuntimeDelegate.java:97) > at javax.ws.rs.core.MediaType.valueOf(MediaType.java:172) > at com.sun.jersey.core.header.MediaTypes.<clinit>(MediaTypes.java:65) > at > com.sun.jersey.core.spi.factory.MessageBodyFactory.initReaders(MessageBodyFactory.java:182) > at > com.sun.jersey.core.spi.factory.MessageBodyFactory.initReaders(MessageBodyFactory.java:175) > at > com.sun.jersey.core.spi.factory.MessageBodyFactory.init(MessageBodyFactory.java:162) > at com.sun.jersey.api.client.Client.init(Client.java:342) > at com.sun.jersey.api.client.Client.access$000(Client.java:118) > at com.sun.jersey.api.client.Client$1.f(Client.java:191) > at com.sun.jersey.api.client.Client$1.f(Client.java:187) > at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193) > at com.sun.jersey.api.client.Client.<init>(Client.java:187) > at com.sun.jersey.api.client.Client.<init>(Client.java:170) > at > org.apache.hadoop.yarn.client.api.impl.TimelineClientImpl.serviceInit(TimelineClientImpl.java:280) > at > org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) > at > org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceInit(YarnClientImpl.java:169) > at > org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) > at > org.apache.flink.yarn.YarnClusterClientFactory.getClusterDescriptor(YarnClusterClientFactory.java:76) > at > org.apache.flink.yarn.YarnClusterClientFactory.createClusterDescriptor(YarnClusterClientFactory.java:61) > at > org.apache.flink.yarn.YarnClusterClientFactory.createClusterDescriptor(YarnClusterClientFactory.java:43) > at > org.apache.flink.client.deployment.executors.AbstractJobClusterExecutor.execute(AbstractJobClusterExecutor.java:64) > at > org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.executeAsync(StreamExecutionEnvironment.java:1812) > at > org.apache.flink.client.program.StreamContextEnvironment.executeAsync(StreamContextEnvironment.java:128) > at > org.apache.flink.client.program.StreamContextEnvironment.execute(StreamContextEnvironment.java:76) > at > org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1699) > at com.missfresh.Main.main(Main.java:142) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at > org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:288) > at > org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:198) > at > org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:149) > at > org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:699) > at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:232) > at > org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:916) > at > org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:992) > 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:1754) > at > org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) > at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:992) > > > 我已经在lib下添加了javax.ws.rs-api-2.1.1.jar >
