Handle status response with a Class during sevice readiness check

[tianleh]

Is your feature request related to a problem? Please describe

#604

A follow up of @dblock 's PR comment #1166 (comment)

Describe the solution you'd like

handle the json with Class

Describe alternatives you've considered

No response

Additional context

No response

[ohltyler]

@tianleh what about using the number_of_pending_tasks field to determine cluster readiness? For example, I've seen integ tests occasionally fail due to missing indices. It seems looks the cluster health reports as yellow (which right now means available to run the tests) but has a number_of_pending_tasks > 0 (see here), which is likely the culprit for these flaky failures

[tianleh]

@ohltyler Totally make sense! I am focusing on #1492 and #1372 and do not have resources to take this current issue in the near future. Feel free to address it if it is urgent.

[bbarani]

@ohltyler @tianleh Do you have any update on this issue?

[bbarani]

@ohltyler @tianleh @seraphjiang Do you have any update on this issue?

[rishabh6788]

@ohltyler It seems the cluster verification has been working fine for a while and we have tests to make sure the cluster is up before we start the tests.
Closing this issue. Feel free to open new issue if you are still seeing flaky errors due to cluster readiness.