If the metainfo.xml of a Service has this field, the command 'Run Service Check' will appear in the Action list of the Service. In the metainfo.xml of Service, the commandScript field is used to configure the service check script entry. The value of the Name tag is the service name/comment name of the service where the dependent component is located The Service tag is the service name set in the metainfo of other services The configuration in Service depends on other services:

ConfigFiles: component configuration files.

commandScript is a script for component life cycle callback.

cardinality is the number of nodes, which can be 1, 1+, or the value range 1-2.

category is the role of the component, supporting Master, Slave, and Client.

Write multiple components under components.

QuickLinksConfigurations: Specify the json configuration information for quick links. Let’s talk aboutĬommandScript: Specify the execution script of the service check. Ĭomponents: Configure service component information. Beijing Huayu Information Technology Co., Ltd. Metainfo.xml: Configure all information of the service.

Package: Store resource files, script files, and template files. Quicklinks: Store quick link configuration files. The variables defined here can be set or modified on the installation page, and can be referenced by other services. There are three folders and two files on the first level.Ĭonfiguration: Edit the configuration file. Take data quality inspection as an example:

The unexpanded ones are: monitoring program resources, server status, etc. The purpose of this custom service development is as follows: it can be found in the ambari market, can be deployed, can be installed correctly, started and stopped, can be modified through the page to take effect after restarting the service configuration, custom detection alarm information, service inspection, log viewing Download, one-click delete service occupation resources, inter-service dependencies, and automatically obtain the configuration of dependent services.

Ambari quicklinks