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https://issues.apache.org/jira/browse/FLINK-9148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aljoscha Krettek updated FLINK-9148:
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Fix Version/s: 1.5.0
> when deploying flink on kubernetes, the taskmanager report
> "java.net.UnknownHostException: flink-jobmanager: Temporary failure in name
> resolution"
> --------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-9148
> URL: https://issues.apache.org/jira/browse/FLINK-9148
> Project: Flink
> Issue Type: Bug
> Components: Docker
> Affects Versions: 1.4.2
> Environment: kubernetes 1.9
> docker 1.4
> see
> :https://ci.apache.org/projects/flink/flink-docs-release-1.4/ops/deployment/kubernetes.html
> Reporter: You Chu
> Priority: Blocker
> Fix For: 1.5.0
>
>
> refer to
> https://ci.apache.org/projects/flink/flink-docs-release-1.4/ops/deployment/kubernetes.html:
> I deploy flink1.4 on kubernetes 1.9, the jobmanager container is ok, but the
> taskmanager contains failed with error:
> java.net.UnknownHostException: flink-jobmanager: Temporary failure in name
> resolution
> at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
> at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
> at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
> at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
> at java.net.InetAddress.getAllByName(InetAddress.java:1192)
> at java.net.InetAddress.getAllByName(InetAddress.java:1126)
> at java.net.InetAddress.getByName(InetAddress.java:1076)
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcServiceUtils.getRpcUrl(AkkaRpcServiceUtils.java:172)
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcServiceUtils.getRpcUrl(AkkaRpcServiceUtils.java:137)
> at
> org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createHighAvailabilityServices(HighAvailabilityServicesUtils.java:79)
> at
> org.apache.flink.runtime.taskmanager.TaskManager$.selectNetworkInterfaceAndRunTaskManager(TaskManager.scala:1681)
> at
> org.apache.flink.runtime.taskmanager.TaskManager$$anon$2.call(TaskManager.scala:1592)
> at
> org.apache.flink.runtime.taskmanager.TaskManager$$anon$2.call(TaskManager.scala:1590)
> at java.security.AccessController.doPrivileged(Native Method)
>
> I know that the the
> jobmanager-deployment.yaml
> taskmanager-deployment.yaml
> I know in flink docker image, it uses environment
> {{JOB_MANAGER_RPC_ADDRESS=flink-jobmanager to resolve jobmanager address.
> however in flink task container, it can't resolve the hostname
> flink-jobmanager.
> Can anyone help me to fix it? Should I need to setup a DNS to resolve?}}
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