Add components
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 componentMandatory 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 componentsCAUTIONWithout 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
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
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
ADBM
ADBM server
Can be installed on the same host with ADB Control server
CAUTIONDo 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
Starting with ADCM 2.2.0, you can use another mapping mode — by hosts. To do this, switch on the Hosts mode toggle and map components to hosts by clicking Add components for each host sequentially.
