Introduction to workload management

The installation of the IBM® InfoSphere® Information Server engine tier installs the InfoSphere DataStage® components, including executables and configuration files, that are required to use the workload management system on an engine system.

Using the workload management system on an engine system involves these components:

A server process called WLMServer, which provides information about the workload management queues to the IBM InfoSphere DataStage and QualityStage® Operations Console.
The Operations Console, which displays information about the workload management queues for each engine system.

Workload management queues

The workload management system uses a set of user-defined queues to control the starting of parallel and server jobs. When a job is started, it is submitted to a designated queue. The queue to which a job is submitted can be specified for that job, or it can be inherited from the project that contains the job, or it can be the default queue.

Workload management system policies

The workload management system uses a set of system policies to determine whether another job should be allowed to start processing. The workload management queues are used to determine which specific job is allowed to start processing.

Workload management predefined queues

A number of workload management queues are predefined, some of which are used by product modules in IBM InfoSphere Information Server. The following workload management queues are predefined:

Table 1. Predefined workload management queues
Queue name	Description
ISD	Used by InfoSphere Information Services Director
IA	Used by IBM InfoSphere Information Analyzer
DataClick	Used by IBM InfoSphere Data Click
LowPriorityJobs	Low priority queue
MediumPriorityJobs	Medium priority queue
HighPriorityJobs	High priority queue