After starting Ditto services, pods toggle from "OK" to "Liveness probe failed" or "Readiness probe failed"

Question

I managed to get Ditto up and running on minikube, following the instructions provided in the README.txt file. I had to do some minor adjustments to the .yaml files (see Deployment of Ditto and MongoDB using kubectl fails because of unsupported version "extensions/v1beta1").

Now that the Ditto services have been started, the pods toggle from status "OK" to the following errors:

pod connectivity: Liveness probe failed: Get "http://172.17.0.6:8558/alive": context deadline exceeded (Client.Timeout exceeded while awaiting headers)

pod gateway: Readiness probe failed: Get "http://172.17.0.9:8558/ready": context deadline exceeded (Client.Timeout exceeded while awaiting headers)

pod things: Readiness probe failed: Get "http://172.17.0.5:8558/ready": context deadline exceeded (Client.Timeout exceeded while awaiting headers)
Back-off restarting failed container

pod things-search: Readiness probe failed: Get "http://172.17.0.8:8558/ready": context deadline exceeded (Client.Timeout exceeded while awaiting headers)
Back-off restarting failed container

pod policies: Readiness probe failed: Get "http://172.17.0.7:8558/ready": context deadline exceeded (Client.Timeout exceeded while awaiting headers)
Back-off restarting failed container

pod concierge: Readiness probe failed: Get "http://172.17.0.4:8558/ready": context deadline exceeded (Client.Timeout exceeded while awaiting headers)

Even when all pods have the status "OK", I can't send POST requests without getting Error 502 (Bad Gateway).

Any help for solving this problem is highly appreciated.

Thank you in advance.

Answer 1

Maybe this is caused by a resource issue for your Minikube VM. How many CPUs and Memory does the VM have? Maybe you can you scale up resources and try again?

Answer 2

I had several Problems with Ditto running in docker till I changed the CPU usage in docker from 4 to 8.

Docker Settings

Since I am using a 4Core/8Thread I wonder if a setting of 4 does lead to the usage of 2 cores (on an old mac). Which seems to be too few for Ditto.

Thomas