call AgentHealthServiceByName get error

[xurwxj]

status, services, err := client.Agent().AgentHealthServiceByName(serviceName)
	if err != nil {
		log.Errorf("failed to get service %s: %v", serviceName, err)
		return
	}

after parallel call 1000 times in a second between service a and b, will got following err:

ERROR: failed to get service a: invalid character 'Y' looking for beginning of value
ERROR: failed to get service b: invalid character 'Y' looking for beginning of value

service will resume after a while.

[jsosulska]

Hi @xurwxj ,

Thanks for posting, and welcome to the Consul repository :) Can you please provide some context as to what you are trying to do? What is the usecase for 1000 parallel calls in a second?

Please provide any additional details that may help us replicate this as well.

Happy Coding!

[jkirschner-hashicorp]

Hi @xurwxj,

We believe this happened because that API endpoint returns errors as a string rather than a JSON object. The API will try to unmarshall the error assuming it is JSON, but fails because it's an error string (not structured as a JSON object). The invalid character 'Y' looking for beginning of value message is likely the JSON unmarshall error.

That problem is being tracked in #10865. Recent progress has been made in PRs #11054 and #11158.

Therefore, I'm closing this issue as a duplicate.

Thanks!

[acpana]

#11158 didn't actually wrap these API paths so I think this issue is still valid.

I'm reopening this as I think we will be closing #10865