In ADCM a service means a software that performs some function. Examples of services for ADPG clusters: ADPG, Chrony, etc. The steps for adding services to a cluster are listed below:
From the CLUSTERS tab switch to the cluster configuring. To do this, click the row that contains the added cluster or click the icon in the Config column. Both methods open the cluster menu.Switching to cluster configuring
Open the Services tab in the cluster menu and click Add services.Switching to services adding
In the opened dialog, select the services that should be added to the cluster, and click Add.
The brief description of available services is listed below.
Services that can be added to the ADPG cluster Service Mandatory Purpose
A core service corresponding to the object-relational DBMS PostgreSQL
A time service. Provides time synchronization for the cluster hosts, that is necessary for the cluster to work correctly. If the time service is already configured on the hosts, there is no need to install ChronyCAUTIONCurrently, it is impossible to delete from a cluster the service that has already been added to it. Be careful while adding services.
As a result, the added services are displayed at the Services tab.The result of successful adding services to a cluster
NOTEYou can also add services later. The process of adding new services to already running cluster does not differ from installing a service from scratch.