is it necessary to restart the ambari server after we delete service

Question

hi allis it necessary to restart the ambari server after we delete ambari service by REST API ?I as asking because after we delete some service from the ambari by APIwe saw that service really Disappeared from ambari dartboard so I not sure if we need also to restart the ambari server to take affect?

jsensharma · Accepted Answer

@Michael BronsonAfter deleting a service from Ambari UI Or using Ambari API calls ... you do not need to restart Ambari Server.Additionally,  When you delete the service using Ambari UI then it internally makes the same API calls.

david_sanchez_p · Answer

Hello!DISCLAIMER: I don't have this knowledge, but want to add my two centsFirst, I don't think is really necessary. When you delete a service via UI, it automatically refresh and the service dissapears, therefore, by using the REST API, should trigger the same mechanism (if not, I feel is bad design).Second: Ambari Server is independent from HDP. What I mean is: Ambari is used for monitoring/installing/configuring/etc, but it doesnt affect on your cluster. You can power off you Ambari, and your cluster is going to work without problems, therefore, I think restarting or not, is transparent (besides triggering alarms and loading (a tiny bit the system on restart)). My question here is why do you need to use the REST api to delete a service. I mean, a service is normally a "once in a lifetime, besides updates". Why not use GUI, and simplify your life?

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