Unable to deregister service if multiple nodes available

[frankiedrake]

We have consul with multiple nodes in our environment.
I'm using spring-cloud-starter-consul-discovery do register my app instances as a services. And I faced a problem when deregistering services. I'm getting an error:

Unknown service {"<service-name>" {}}

I tried to repeat the same request with a curl and got the same error.
Command I execute:

curl -v -X PUT -H 'X-Consul-Token: ***' https://consul-host/v1/agent/service/deregister/<service-name>

What I noticed is that repeating the request multiple times results in success service deregistration.
I guess that what happens is some round-robin behavior, and each time the request is falling in a different node.
I don't know if this is an expected behavior, but maybe it's possible to find some workaround for this issue.
What I need is to deregister my service automatically when stopping/rebooting the application.

[jkirschner-hashicorp]

Hi @frankiedrake ,

My apologies for the delayed response. I'm unfamiliar with the spring-cloud-consul Github project. It may make sense to post there to understand why service deregistrations through spring-cloud-consul aren't working.

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However, I can speak to why the curl command you issued may not have worked: you may have used a service name rather than a service id in the call. The deregister endpoint requires a service id.

This is a very easy mistake to make. We should make it easier to avoid, or detect/fix, this mistake. I'm tracking such improvements in #10861.