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You open the PSI agent configuration dialog from a workflow configuration: you can right-click the agent icon and select Configuration..., or double-click the agent icon.

The PSI agent configuration dialog contains three tabs: the SLU list, Connection and Advanced properties tabs.

Warning
titleDeprecation

From 8.1.9 and 8.2, Netty version 4 is supported for the PSI Agent. Netty version 3 will be deprecated in a future version of .

SLU list Tab

The SLU list tab is displayed by default when you open a PSI agent configuration dialog.


 
The PSI agent configuration dialog - SLU list tab

In the SLU list tab, use the Add button to add the SLU (Service Logic Unit) Host (or IP address) and corresponding Server Ports. The PSI requests are equally distributed by round robin to all the PSI SLU servers added.

Connection Tab

In the Connection tab, you configure the heartbeat messages which are sent between and the Payment Server to keep the session active when there is no other message activity from .

The PSI agent configuration dialog - Connection tab


FieldDescription
Transport version

Select Netty4 to use Netty version 4 for the PSI Agent. Default is Netty3. It is recommended to use version 4.

Note
titleNote!

will be completely upgraded to Netty version 4 within a few releases, starting with the PSI Agent in 8.1.9. Netty version 3 can be used as fallback for a period of time. Netty version 3 will be deprecated in a future version of .

To mix Netty versions within the same execution context is not supported. Furthermore, you cannot run several execution contexts with different versions of Netty communicating with one another. Since only the PSI Agent supports Netty4 this means that you cannot use Netty4 if the PSI Agent is intended to communicate with for example Workflow Bridge, since Workflow Bridge still only supports Netty3.


Heartbeat interval (s)

Specifies the interval period in seconds for sending heartbeat messages. The default value is 60, the maximum value is 1800.

Request timeout (ms)

Specifies the timeout period for responses from a SLU.

Request retries

Specifies the number of SLUs to which a request is attempted to be sent on a timeout. Entering a value of 1 means you an attempt is made to send a request to 2 SLUs.

Advanced properties Tab

You can modify properties in the Advanced properties tab.

The PSI configuration agent dialog - Advanced properties tab

One example of properties that can be configured in the Advanced properties tab is reconnectInterval, which specifies the time interval after which the agent will try to reconnect.

Below are listed properties that are deprecated after Netty version 3:

  • localInterface
  • suppressDuplicateEvents
  • useForwardingQueue
  • forwardingQueueTimeout
  • forwardingQueueSize
  • direct-deliver
Note
titleNote!
For existing or imported workflows the Properties list is not reloaded to reflect if any properties have been deprecated.

See the text in the Properties field for further information about the properties.