3. Scheduling and Load Balancing of Requests Using CTM

This chapter describes the scheduling and load balancing of requests.

A business system needs to be reliable, able to maintain stable processing in the event of a local failure, and responsive to varying business processing demands, as required. To fulfill these requirements, the application server performs processing such as OLTP-based request scheduling and load balancing with clustered servers.

Note that the functionality described in this chapter can be used with only the products that include Component Transaction Monitor (CTM). For details about products compatible with this functionality, see 2.2.1 Mapping between products and the component software in the manual uCosminexus Application Server Overview.

Organization of this chapter

3.1 Topics covered by this chapter

3.2 Overview of request scheduling using CTM

3.3 Process configuration for using CTM

3.4 Flow-volume control of requests

3.5 Controlling priority of requests

3.6 Dynamically changing the number of concurrent executions of requests

3.7 Locking and controlling requests

3.8 Load balancing of requests

3.9 Monitoring and retaining request queues

3.10 Connection with the TPBroker/OTM client by using the gateway functionality in CTM