Increasing the number of concurrent transfers for the Connect:Direct bridge
To increase the number of concurrent transfers that the Connect:Direct® bridge agent can process, you must change three agent properties. You must also increase the maximum number of connections that the Connect:Direct node accepts.
The maximum number of concurrent transfers that a Connect:Direct bridge agent can process depends on the values of certain agent properties. The maxSourceTransfers and maxDestinationTransfers agent properties have a default value of five transfers for a Connect:Direct bridge agent. This default value is lower than the default of 25 transfers for other types of agent. A Connect:Direct bridge, where the agent is configured with the default values of maxSourceTransfers and maxDestinationTransfers, can process a maximum of 10 transfers at any one time: five transfers where the agent is the source, and five transfers where the agent is the destination.
These default values ensure that the Connect:Direct bridge agent does not exceed the maximum number of API connections to the Connect:Direct node. A Connect:Direct bridge agent with the default configuration uses a maximum of 10 API connections to the Connect:Direct node. The maximum number of connections accepted by a Connect:Direct node on UNIX is controlled by the api.max.connects Connect:Direct parameter. For a Connect:Direct node on Windows, the equivalent parameter is max.api.connects.
- maxSourceTransfers
- Set this property to a value that is larger than 5, but smaller than or equal to 25. If you choose a value that is larger than 25, the agent might run out of memory unless you increase the amount of memory that is available to the JVM used by the agent.
- maxDestinationTransfers
- Set this property to a value that is larger than 5, but smaller than or equal to 25. If you choose a value that is larger than 25, the agent might run out of memory unless you increase the amount of memory that is available to the JVM used by the agent.
- ioThreadPoolSize
- The default value of ioThreadPoolSize is
10. This property restricts the number of Connect:Direct node API connections
for transfers where the Connect:Direct bridge
agent is the source agent. These transfers are from Connect:Direct to IBM® MQ Managed File Transfer. Use the following guidance
to set the value of this property:
- If the value of maxSourceTransfers is smaller than the value of maxDestinationTransfers, set ioThreadPoolSize to double the value of maxSourceTransfers or 10, whichever is the larger
- If the value of maxSourceTransfers is larger than the value of maxDestinationTransfers, set ioThreadPoolSize to the sum of maxSourceTransfers and maxDestinationTransfers
- api.max.connects (if the node in your Connect:Direct bridge is on UNIX)
- Set this parameter to a value larger than the sum of maxSourceTransfers and maxDestinationTransfers. The default value of the api.max.connects parameter is 16. For more information about how to set this parameter, see the Connect:Direct documentation.
- max.api.connects (if the node in your Connect:Direct bridge is on Windows)
- Set this parameter to a value larger than the sum of maxSourceTransfers and maxDestinationTransfers. The default value of the max.api.connects parameter is 10. For more information about how to set this parameter, see the Connect:Direct documentation.