Add components

Daria Barysheva

In ADCM a component means a part of a service that should be deployed on one or several cluster hosts. For example, ADB service consists of such components as ADB Master, ADB Segment, ADB Standby, etc.

IMPORTANT

Initially, there are no components on any of cluster hosts. You should map components to hosts manually.

The steps for adding components to hosts are listed below:

Select a cluster on the Clusters page. To do this, click a cluster name in the Name column.

Select a cluster
Open the Mapping tab on the cluster page.

Switch to mapping service components

In the window that opens, map components to hosts. To assign hosts for each component, click Add hosts and select hosts in the pop-up window.

Select hosts for a component

Mandatory components

Each service can have mandatory and optional components. Mandatory components are highlighted in red. The ADCM UI also displays how many mandatory components should be installed.

Mandatory components

CAUTION

Without assigning a necessary number of hosts to mandatory components, the component mapping cannot be saved.

The typical scheme of mapping components in ADB clusters is described in the table below. It is based on the Enterprise Edition of ADB.

Example of mapping ADB components to hosts
Host	Service	Component	Notes
Master host	ADB	ADB Master	Should be installed only on one Master host
Master host	Chrony	NTP Master	Should be installed only on one Master host
Secondary Master Host (Standby)	ADB	ADB Standby	Should be installed on the Standby Master host
Secondary Master Host (Standby)	Chrony	NTP Secondary	Can be installed optionally on the Standby Master host
Segment host (1..N)	ADB	ADB Segment	Should be installed on one or more Segment hosts
	Chrony	NTP Slave	Can be installed optionally on one or more Segment hosts
	PXF	PXF	Should be installed on one or more Segment hosts and, optionally, on the Master host
ADB Control/ADBM host	ADB Control	ADB Control server	It is recommended to use a separate host for this component
ADB Control/ADBM host	ADBM	ADBM server	Can be installed on the same host with ADB Control server

CAUTION

Do not install ADB Control server or ADBM server on the same host with the ADB Master or ADB Segment components. This feature is reserved for informational purposes only. Use a separate host for these components.

After component distribution is completed, click Save.

Save mapping of components
To open an alternative mapping view (by hosts), select the Hosts view tab.

View mapping by hosts

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