Add components

In ADCM a component means a part of a service that should be deployed on one or several cluster hosts.

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:

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

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

    Switch to mapping components to hosts
    Switch to mapping service components
  3. 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
    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
    Mandatory components
    CAUTION
    Without assigning a necessary number of hosts to mandatory components, the component mapping cannot be saved.

    The typical scheme of components distribution for ADQM clusters is described in the table below.

    ADQM components distribution
    Host Service Component Notes

    Any host

    ADQMDB

    Clickhouse Server

    One or more components should be installed

    All hosts with Clickhouse Server

    ADQMDB

    Clickhouse JDBC Bridge

    If you install this component (optionally), add it to all hosts in the cluster where the Clickhouse Server component is installed

    Any host

    Zookeeper

    Zookeeper Server

    One or more components should be installed. Total amount should be odd

    Any host

    Clickhousekeeper

    Clickhouse Keeper Server

    One or more components should be installed. Total amount should be odd

    Any host

    Chproxy

    Chproxy Proxy Server

    One or more components should be installed

  4. After component distribution is completed, click Save.

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

    View mapping by hosts
    View mapping by hosts
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