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https://issues.apache.org/jira/browse/FLINK-15394?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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watters.wang closed FLINK-15394.
--------------------------------
Resolution: Not A Problem
> in yarn mode, jobmanager fails to start in case of rest.port conflict.
> ----------------------------------------------------------------------
>
> Key: FLINK-15394
> URL: https://issues.apache.org/jira/browse/FLINK-15394
> Project: Flink
> Issue Type: Bug
> Components: Runtime / REST
> Affects Versions: 1.9.0
> Environment: a small yarn cluster with three node.
> Reporter: watters.wang
> Priority: Major
>
> In flink 1.9, if rest.port is set in flink.yaml, jobmanager will start
> failed in case of rest.port conflict in small cluster.
> in 1.7, that's ok .
>
> {code:java}
> //代码占位符
> org.apache.flink.runtime.entrypoint.ClusterEntrypointException: Failed to
> initialize the cluster entrypoint YarnJobClusterEntrypoint.
> at
> org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:182)
> at
> org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runClusterEntrypoint(ClusterEntrypoint.java:501)
> at
> org.apache.flink.yarn.entrypoint.YarnJobClusterEntrypoint.main(YarnJobClusterEntrypoint.java:102)
> 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:210)
> at
> org.apache.flink.runtime.entrypoint.ClusterEntrypoint.lambda$startCluster$0(ClusterEntrypoint.java:164)
> 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.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
> at
> org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:163)
> ... 2 more
> Caused by: java.net.BindException: Could not start rest endpoint on any port
> in port range 8081
> at
> org.apache.flink.runtime.rest.RestServerEndpoint.start(RestServerEndpoint.java:219)
> at
> org.apache.flink.runtime.entrypoint.component.AbstractDispatcherResourceManagerComponentFactory.create(AbstractDispatcherResourceManagerComponentFactory.java:161)
> ... 9 more
> {code}
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