Using the Time Out parameter
The Time Out parameter is used in conjunction with the RMI Timeout defined on as a JVM property on the IPA grid node. The RMI Timeout controls the maximum amount of time the RMI connection to any IBM WebSphere TX should be kept open. Therefore, you should set the RMI Timeout to the amount of time it takes your longest IBM WebSphere TX map to execute. Then you can use this Time Out value to specify the maximum execution time for a particular map. The Time Out value can be shorter than the broader RMI Timeout, if needed.
For example, if you have three maps that take 10, 20, and 30 minutes each to run, the JVM property on the IPA node should be 30 minutes or more, to accommodate the longest running map. Assuming you have three different IBM WebSphere TX connections for the three maps, one would have Time Out=10 minutes, the second would have Time Out=20 minutes, and the third would have Time Out=30 minutes.