Enabling Only Services That are Required

If some IBM® Cognos® Analytics services are not required in your environment, you can disable them to improve the performance of other services.

For example, to dedicate a computer to running and distributing reports, you can disable the presentation service on an Application Tier Components computer. When you disable the presentation service, the performance of the Application Tier Components will improve.

Note:

The Presentation service must remain enabled on at least one computer in your IBM Cognos Analytics environment.
If you want to use Query Studio, you must enable the Presentation service.
If you want to use Analysis Studio, you must enable the Report service.
If some IBM Cognos Analytics components are not installed on a computer, you should disable the services associated with the missing components. Otherwise the IBM Cognos Analytics components will randomly fail.

IBM Cognos services

After you install and configure IBM Cognos Analytics, one dispatcher is available on each computer by default. Each dispatcher has a set of associated services, listed in the following table.

Table 1. IBM Cognos services
Service	Purpose
Agent service	Runs agents. If the conditions for an agent are met when the agent runs, the agent service asks the monitor service to run the tasks.
Batch report service	Manages background requests to run reports and provides output on behalf of the monitor service.
Content Manager cache service	Enhances the overall system performance and Content Manager scalability by caching frequent query results in each dispatcher.
Content Manager service	Performs object manipulation functions in the content store, such as add, query, update, delete, move, and copy Performs content store management functions, such as import and export
Delivery service	Sends emails to an external SMTP server on behalf of other services, such as the report service, job service, or agent service
Event management service	Creates, schedules, and manages event objects that represent reports, jobs, agents, content store maintenance, and deployment imports and exports.
Graphics service	Produces graphics on behalf of the Report service. Graphics can be generated in 4 different formats: Raster, Vector, Microsoft Excel XML or PDF.
Human task service	Enables the creation and management of human tasks. A human task such as report approval can be assigned to individuals or groups on an ad hoc basis or by any of the other services.
Job service	Runs jobs by signaling the monitor service to run job steps in the background. Steps include reports, other jobs, import, exports, and so on.
Log service	Records log messages generated by the dispatcher and other services. The log service can be configured to record log information in a file, a database, a remote log server, Windows Event Viewer, or a UNIX system log. The log information can then be analyzed by customers or by Cognos Software Services, including: security events system and application error information selected diagnostic information
Metadata service	Provides support for data lineage information displayed in Cognos Viewer, Reporting, Query Studio, and Analysis Studio. Lineage information includes information such as data source and calculation expressions.
Migration service	Manages the migration from IBM Cognos Series 7 to IBM Cognos Analytics.
Mobile service	Manages activities related to IBM Cognos Analytics Reports client: Transforms reports and analyses for mobile consumption. Compresses report and analysis content for fast distribution over-the-air to the mobile devices and access from those devices. Pushes report and analysis content to the mobile devices. Facilitates incoming and outgoing report-related and analysis-related requests between the mobile device and the environment to search, browse, or run reports. Synchronizes the mobile content store on the server with the mobile database on the mobile device. Translates Simple Object Access Protocol (SOAP) messages into wireless-friendly messages. Communicates with the mobile device.
Monitor service	Manages the monitoring and execution of tasks that are scheduled, submitted for execution at a later time, or run as a background task Assigns a target service to handle a scheduled task. For example, the monitor service may ask the batch report service to run a report, the job service to run a job, or the agent service to run an agent. Creates history objects within the content manager and manages failover and recovery for executing entries
PowerPlay® service	Manages requests to run PowerPlay reports.
Presentation service	Transforms generic XML responses from another service into output format, such as HTML or PDF Provides display, navigation, and administration capabilities
Query service	Manages Dynamic Query requests and returns the result to the requesting batch or report service.
Relational metadata service	Used by Framework Manager and CubeDesigner to import metadata from relational databases. It may also be used by Dynamic Query Analyzer at runtime.
Report data service	Manages the transfer of report data between IBM Cognos Analytics and applications that consume the data, such as IBM Cognos for Microsoft Office and IBM Cognos Analytics Reports.
Report service	Manages interactive requests to run reports and provides output for a user.
Repository service	Manages requests to retrieve archived report output from an archive repository or object store.