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Specifying maximum concurrent tasks for Domino Change Manager

There are three thread pools that control the number of concurrent tasks that the Domino® Change Manager can carry out. The combination of the number of concurrent plans and demands creates a pool from which all the demands of all the plans are run. How the size of these thread pools affects performance depends on the size of the server.

About this task

If necessary, you can limit the amount of CPU used by the Domino Change Manager. On very powerful machines, however, you may want to increase these numbers considerably. You typically want to increase the number of concurrent demands to change the total number of demands (across all executing plans) that can run simultaneously. This is the key variable that will affect performance. As a general guideline:

Increase the number of concurrent messages when you have many people drafting, preparing, and submitting many plans. If you have only a few plans, this is not necessary.
Increase the number of concurrent plans when you want many plans to execute at the same time.

You set these options in the Configuration Settings document for the domain. This Configuration Settings document applies the settings as the default settings for all servers and uses the * [All Servers] as the group or server name.

Procedure

1. From the Domino Administrator, click the Configuration tab, expand the Server section, and click Configurations.

2. Select the * [All Servers] Configuration Settings document, and click Add Configuration or Edit Configuration.

3. Click the Change Control tab, and complete these fields:

Table 1. Change Control tab

Field	Action
Domain Change Server	Choose the server that stores the Domino Change Control database (DOMCHANGE.NSF).
Database file name	Enter the name of the Domino Change Manager. The default name is DOMCHANGE.NSF in server/data directory. If the database is not in the default directory, enter a full path name.
Max. concurrent messages	Enter the maximum number of messages that can be executed at the same time. The default is 5. The recommended number is between 1 and 10.
Max. concurrent plans	Enter the maximum number of plans that can be executed at the same time. The default is 5. The recommended number is between 1 and 10.
Max. concurrent demands	Enter the maximum number of demands (for example, database moves) that can be simultaneously processed. The default is 40. This number should be equal to or larger than the Max. concurrent plans number.

4. Click Save & Close.

Related concepts
Domino Change Manager

Related tasks
Setting up Domino Change Manager

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