Flink CDC提交flink任务到yarn， 偶而报错，什么原因？
Flink CDC提交flink任务到yarn， 偶而报错
Retrying connect to server: 0.0.0.0/0.0.0.0:8030. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2023-11-16 15:44:47,612 flink-akka.actor.default-dispatcher-5 INFO org.apache.hadoop.ipc.Client [] - Retrying connect to server: 0.0.0.0/0.0.0.0:8030. Already tried 1 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2023-11-16 15:44:48,612 flink-akka.actor.default-dispatcher-5 INFO org.apache.hadoop.ipc.Client [] - Retrying connect to server: 0.0.0.0/0.0.0.0:8030. Already tried 2 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2023-11-16 15:44:49,613 flink-akka.actor.default-dispatcher-5 INFO org.apache.hadoop.ipc.Client [] - Retrying connect to server: 0.0.0.0/0.0.0.0:8030. Already tried 3 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2023-11-16 15:44:50,614 flink-akka.actor.default-dispatcher-5 INFO org.apache.hadoop.ipc.Client [] - Retrying connect to server: 0.0.0.0/0.0.0.0:8030. Already tried 4 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2023-11-16 15:44:51,615 flink-akka.actor.default-dispatcher-5 INFO org.apache.hadoop.ipc.Client [] - Retrying connect to server: 0.0.0.0/0.0.0.0:8030. Already tried 5 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2023-11-16 15:44:52,615 flink-akka.actor.default-dispatcher-5 INFO org.apache.hadoop.ipc.Client [] - Retrying connect to server: 0.0.0.0/0.0.0.0:8030. Already tried 6 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2023-11-16 15:44:53,616 flink-akka.actor.default-dispatcher-5 INFO org.apache.hadoop.ipc.Client [] - Retrying connect to server: 0.0.0.0/0.0.0.0:8030. Already tried 7 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2023-11-16 15:44:54,617 flink-akka.actor.default-dispatcher-5 INFO org.apache.hadoop.ipc.Client [] - Retrying connect to server: 0.0.0.0/0.0.0.0:8030. Already tried 8 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2023-11-16 15:44:55,617 flink-akka.actor.default-dispatcher-5 INFO org.apache.hadoop.ipc.Client [] - Retrying connect to server: 0.0.0.0/0.0.0.0:8030. Already tried 9 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2023-11-16 15:44:56,620 flink-akka.actor.default-dispatcher-5 INFO org.apache.hadoop.ipc.Client [] - Retrying connect to server: 0.0.0.0/0.0.0.0:8030. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2023-11-16 15:44:57,621 flink-akka.actor.default-dispatcher-5 INFO org.apache.hadoop.ipc.Client [] - Retrying connect to server: 0.0.0.0/0.0.0.0:8030. Already tried 1 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)？
写回答
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面对过去，不要迷离；面对未来，不必彷徨；活在今天，你只要把自己完全展示给别人看。这个错误是因为客户端试图连接ResourceManager失败，但ResourceManager的地址是0.0.0.0/0.0.0.0:8030。这通常表明网络有问题或 ResourceManager 不在线。
要解决这个问题，请确保 ResourceManager 在线并且可以通过正确的主机名或IP地址访问它。您还可以检查客户端和 ResourceManager 是否在同一个子网内，并且网络配置正确。
如果您在YARN集群上部署了Kubernetes插件，请确保 ResourceManager 的配置正确，并且 ResourceManager 服务器是可见的。例如，您可以使用 kubectl get pods 来检查 ResourceManager pod 的状态，确认其处于运行状态。2023-11-29 14:01:55赞同 展开评论 打赏 -
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