RRS batch adapter

 

The transaction management and recoverable resource manager services (RRS) adapter:

• Uses z/OS RRS for commit control.

• Supports simultaneous connections to multiple WebSphere MQ subsystems running on a single z/OS instance from a single task.

• Provides z/OS-wide coordinated commitment control (using z/OS RRS) for recoverable resources accessed through z/OS RRS compliant recoverable managers for:

  • Applications that connect to WebSphere MQ using the RRS batch adapter.

  • DB2-stored procedures executing in a DB2-stored procedures address space that is managed by a workload manager (WLM) on z/OS.

• Supports the ability to switch a WebSphere MQ batch thread between TCBs.

WebSphere MQ for z/OS provides two RRS batch adapters:

CSQBRSTB

This adapter requires you to change any MQCMIT and MQBACK statements in your WebSphere MQ application to SRRCMIT and SRRBACK respectively. (If you code MQCMIT or MQBACK in an application linked with CSQBRSTB, you receive MQRC_ENVIRONMENT_ERROR.)

CSQBRRSI

This adapter allows your WebSphere MQ application to use either MQCMIT and MQBACK or SRRCMIT and SRRBACK.

CSQBRSTB and CSQBRRSI are shipped with linkage attributes AMODE(31) RMODE(ANY). If your application loads either stub below the 16 MB line, first relink the stub with RMODE(24).

• Migration
  

 

Parent topic:

The WebSphere MQ for z/OS interface with the application environment

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