timed out waiting for a node assignment. call

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Timed out waiting for a node assignment: causes and solutions

Timed Out Waiting for a Node Assignment

Have you ever been working on a project and suddenly been interrupted by a message saying that your node assignment has timed out? This can be a frustrating experience, especially if you’re not sure what it means or how to fix it.

In this article, we’ll take a look at what node assignment is, why it might time out, and how you can troubleshoot the issue. We’ll also provide some tips on how to prevent node assignment timeouts in the future.

So if you’re ever faced with this error message, don’t despair! By following the steps in this article, you’ll be back up and running in no time.

3. How to troubleshoot a node assignment timeout?

If you are experiencing a node assignment timeout, there are a few things you can do to troubleshoot the issue:

• Check the health of the node. The first step is to make sure that the node is healthy and that it is able to communicate with the cluster. You can do this by running the following command on the node:

kubectl get node –output=jsonpath='{.status.conditions[?(@.type==”Ready”)].status}’

If the output of this command is “True”, then the node is healthy. If the output is “False”, then the node is not healthy and you will need to troubleshoot the issue.

• Check the network connectivity between the node and the cluster. The next step is to make sure that the node is able to communicate with the cluster. You can do this by running the following command on the node:

If you are able to ping the cluster, then the network connectivity is good. If you are not able to ping the cluster, then you will need to troubleshoot the network issue.

• Check the compatibility of the node with the cluster. The final step is to make sure that the node is compatible with the cluster. You can do this by running the following command on the node:

kubectl get node –output=jsonpath='{.status.nodeInfo.osImage}’

The output of this command should show the operating system image that is running on the node. This image should be compatible with the cluster. If the image is not compatible, then you will need to install a compatible image on the node.

4. How to prevent a node assignment timeout?

There are a few things you can do to prevent a node assignment timeout:

• Make sure that the node is healthy. The most important thing you can do to prevent a node assignment timeout is to make sure that the node is healthy. This means that the node should be running the latest version of Kubernetes, and it should not have any hardware or software issues.
• Make sure that the node is reachable from the cluster. The node must be able to communicate with the cluster in order to receive pod assignments. You can make sure that the node is reachable by checking the network connectivity between the node and the cluster.
• Make sure that the node is compatible with the cluster. The node must be compatible with the cluster in order to receive pod assignments. You can make sure that the node is compatible by checking the operating system image that is running on the node.

By following these tips, you can help to prevent node assignment timeouts in your Kubernetes cluster.

Additional resources:

• [Node assignment timeouts in Kubernetes](https://kubernetes.io/docs/tasks/administer-cluster/node-timeouts/)
• [Troubleshooting node assignment timeouts in Kubernetes](https://kubernetes.io/docs/tasks/administer-cluster/node-timeouts/troubleshooting)

Node assignment timeouts can be a frustrating problem, but they can usually be resolved by troubleshooting the node, the network, and the operating system image. By following the tips in this article, you can help to prevent node assignment timeouts in your Kubernetes cluster.

Q: What does it mean when I get a “timed out waiting for a node assignment” error?

A: This error means that your Kubernetes cluster was unable to assign a node to your pod within the specified timeout period. This can happen for a number of reasons, such as:

• Insufficient resources: There may not be enough available nodes in your cluster to satisfy the resource requirements of your pod.
• Network issues: There may be a network issue between your pod and the Kubernetes control plane, which is preventing the control plane from assigning a node to your pod.
• Configuration errors: There may be a configuration error in your Kubernetes cluster or pod manifest that is preventing the control plane from assigning a node to your pod.

Q: How can I troubleshoot a “timed out waiting for a node assignment” error?

A: Here are a few things you can check to troubleshoot a “timed out waiting for a node assignment” error:

• Check the status of your nodes: Make sure that all of your nodes are healthy and available. You can do this by running the following command:

kubectl get nodes

• Check the network connectivity between your pod and the Kubernetes control plane: You can do this by running the following command:

— ping

• Check the configuration of your Kubernetes cluster and pod manifest: Make sure that there are no configuration errors that could be preventing the control plane from assigning a node to your pod. You can do this by reviewing the following resources:
• The [Kubernetes documentation](https://kubernetes.io/docs/)
• The [Kubernetes API reference](https://kubernetes.io/docs/reference/)
• The [Kubernetes configuration reference](https://kubernetes.io/docs/reference/config/)

Q: How can I prevent “timed out waiting for a node assignment” errors in the future?

A: Here are a few things you can do to prevent “timed out waiting for a node assignment” errors in the future:

• Ensure that you have enough resources available in your Kubernetes cluster: This means having enough nodes with the correct resources to satisfy the resource requirements of your pods.
• Monitor the health of your nodes: Make sure that your nodes are healthy and available at all times.
• Keep your Kubernetes cluster and pod manifests up-to-date: Make sure that you are using the latest versions of the Kubernetes API and configuration resources.

By following these tips, you can help to prevent “timed out waiting for a node assignment” errors in your Kubernetes cluster.

In this article, we discussed the issue of “timed out waiting for a node assignment”. We first explained what this error means and then provided some tips on how to resolve it. We hope that this information was helpful and that you were able to resolve the issue.

Here are some key takeaways from this article:

• The “timed out waiting for a node assignment” error occurs when a pod cannot be scheduled to a node within the specified timeout.
• There are a number of possible causes for this error, including:
• Insufficient resources: There may not be enough resources available on any of the nodes to run the pod.
• Network issues: The pod may not be able to communicate with the nodes.
• Scheduling conflicts: The pod may be competing with other pods for resources.
• To resolve this error, you can try the following:
• Increase the timeout: This will give the scheduler more time to find a node for the pod.
• Add more resources to the nodes: This will make it more likely that the pod will be able to be scheduled.
• Fix any network issues: This will ensure that the pod can communicate with the nodes.
• Resolve any scheduling conflicts: This will make it more likely that the pod will be able to be scheduled.

We hope that this information was helpful and that you were able to resolve the issue.

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Timeout Error When Using kafka-console-consumer and kafka-console-producer On Secured Cluster

• Apache Kafka

Created on ‎07-26-2017 11:44 AM - edited ‎09-16-2022 04:59 AM

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Created on ‎07-27-2017 08:29 AM - edited ‎07-27-2017 08:31 AM

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Kafka topics list throw exception

• Resolution: Done
• Fix Version/s: 1.9.0.Final
• Affects Version/s: 1.9.0.Beta1
• Component/s: container-images
• Labels: None
• Blocked: False
• Blocked Reason: None
• Ready: False
• Target Release: 1.9.GA
• Git Pull Request: https://github.com/debezium/docker-images/pull/286

Steps: 1. start zookeeper docker run -it --rm --name zookeeper -p 2181:2181 -p 2888:2888 -p 3888:3888 debezium/zookeeper:1.9 2. start kafka docker run -it --rm --name kafka -p 9092:9092 --link zookeeper:zookeeper debezium/kafka 3. get all topics

• zookeeper start throwing exceptions like 2022-03-28 19:52:11,904 - WARN  [NIOWorkerThread-3:NIOServerCnxn@373] - Close of session 0x0 java.io.IOException: Unreasonable length = 308375649         at org.apache.jute.BinaryInputArchive.checkLength(BinaryInputArchive.java:166)         at org.apache.jute.BinaryInputArchive.readBuffer(BinaryInputArchive.java:127)         at org.apache.zookeeper.proto.ConnectRequest.deserialize(ConnectRequest.java:91)         at org.apache.zookeeper.server.ZooKeeperServer.processConnectRequest(ZooKeeperServer.java:1350)         at org.apache.zookeeper.server.NIOServerCnxn.readConnectRequest(NIOServerCnxn.java:419)         at org.apache.zookeeper.server.NIOServerCnxn.readPayload(NIOServerCnxn.java:180)         at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:339)         at org.apache.zookeeper.server.NIOServerCnxnFactory$IOWorkRequest.doWork(NIOServerCnxnFactory.java:522)         at org.apache.zookeeper.server.WorkerService$ScheduledWorkRequest.run(WorkerService.java:154)         at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)         at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)         at java.base/java.lang. Thread .run( Thread .java:829)
• after some time topic list command throws: $ docker run -it --rm --link zookeeper:zookeeper debezium/kafka:1.9 list-topics WARNING: Using default NODE_ID=1, which is valid only for non-clustered installations. Starting in ZooKeeper mode using NODE_ID=1. Using ZOOKEEPER_CONNECT=172.17.0.2:2181 Using configuration config/server.properties. Using KAFKA_LISTENERS=PLAINTEXT: //172.17.0.4:9092 and KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://172.17.0.4:9092 Listing topics... Error while executing topic command : Timed out waiting for a node assignment. Call: listTopics [2022-03-28 19:52:11,908] ERROR org.apache.kafka.common.errors.TimeoutException: Timed out waiting for a node assignment. Call: listTopics  (kafka.admin.TopicCommand$)

If you will try other versions like 1.8 you find many other problems

• SFDC Cases Counter:
• SFDC Cases Links:

Description

Trying to setup the environment and see all existed topics Topic throws exceptions

Attachments

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• command.log 0.3 kB 2022/03/28 8:00 PM
• kafka.log 35 kB 2022/03/28 8:00 PM
• zookeeper.log 629 kB 2022/03/28 8:00 PM

How to connect kafka-topics to brokers

Kafka version

Command i used to connect to broker which has ssl enabled kafka % ./bin/kafka-topics.sh --bootstrap-server localhost:9090 --list

Error logs on broker:

do i have to keep a diffrent listener which will accept clients with plaintext ? i didn’t found anything whether the kafka-topics ssl in implemented or not i am just new in kafka , i only know that previously it used to connect with zookeeper

In the second command, you use localhost:9090 vs localhost:9092 The default port for Kafka is 9092 .

yes, i know , but i have configured server properties with sasl_ssl

my server-0.properties :

and when i try to connect with PLAINTEXT PORT i get :

is there any ssl security yet in kafka-topics ? i didnt found any docs, article related kafka-topics security

Yes. use --command-config flag and provide SSL/SASL properties with a file.

Related Topics

Not able to create KAFKA topic

I followed all steps from https://docs.aws.amazon.com/msk/latest/developerguide/create-topic.html and created a cluster and client everthing worked till connecting to cluster but when i tried creating a topic using given command <path-to-your-kafka-installation> /bin/kafka-topics.sh --create --bootstrap-server BootstrapServerString --command-config client.properties --replication-factor 3 --partitions 1 --topic MSKTutorialTopic

my command ./kafka-topics.sh --create --bootstrap-server "b-2.msktutorialcluster.yhl59f.c8.kafka.us-east-1.amazonaws.com:9098" --command-config client.properties --replication-factor 3 --partitions 1 --topic MSKTutorialTopic

Its giving timed out error

Error while executing topic command : Call(callName=createTopics, deadlineMs=1689494022437, tries=1, nextAllowedTryMs=1689494022538) timed out at 1689494022438 after 1 attempt(s) [2023-07-16 07:53:42,442] ERROR org.apache.kafka.common.errors.TimeoutException: Call(callName=createTopics, deadlineMs=1689494022437, tries=1, nextAllowedTryMs=1689494022538) timed out at 1689494022438 after 1 attempt(s) Caused by: org.apache.kafka.common.errors.TimeoutException: Timed out waiting for a node assignment. Call: createTopics (kafka.admin.TopicCommand$)

• Most comments

May be a permission issue are brokers seem unreachable. Can you make sure that vpc endpoints, or ACLs/security groups/NACLs are allowing traffic.

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A good answer clearly answers the question and provides constructive feedback and encourages professional growth in the question asker.

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3353228 - 'Timed out waiting for a node assignment' error in Cloud Integration when using Kafka adapter

When using Kafka adapter in Cloud Integration, the following error occurs:

• va.util.concurrent.ExecutionException: org.apache.kafka.common.errors.TimeoutException: Call(callName=listTopics, deadlineMs=1677747334237, tries=1, nextAllowedTryMs=1677747334338) timed out at 1677747334238 after 1 attempt(s) Cause: org.apache.kafka.common.errors.TimeoutException: Call(callName=listTopics, deadlineMs=1677747334237, tries=1, nextAllowedTryMs=1677747334338) timed out at 1677747334238 after 1 attempt(s) Cause: org.apache.kafka.common.errors.TimeoutException: Timed out waiting for a node assignment . Call: listTopics

Environment

• SAP Business Technology Platform
• SAP Integration Suite
• Cloud Integration

Cloud Integration, SAP Integration Suite, SAP Cloud Platform Integration, Cloud Platform Integration, SAP CPI, CPI, SCPI, HANA Cloud Integration, HCI, SAP HCI, tenant, iFlow, Integration Flow, Kafka, Adapter, sender, receiver, time, out, timeout , KBA , LOD-HCI-PI-CON-SOAP , SOAP Adapter , Problem

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[bitnami/kafka] Failed authentication with SASL_PLAINTEXT #23077

rirorinn commented Feb 6, 2023 • edited by carrodher

javsalgar commented Feb 6, 2023

Sorry, something went wrong.

rirorinn commented Feb 6, 2023

mdhont commented Feb 14, 2023

fevisera commented Mar 22, 2023

rirorinn commented Mar 27, 2023

• 👍 1 reaction

gx303841541 commented May 5, 2023

Gx303841541 commented may 5, 2023 • edited by carrodher.

alessskeno commented Jul 5, 2023

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