Throttling

Description

Throttling is a feature designed to reject incoming requests in a process model if the work in the process model exceeds the specified configurations.

There are two types of Throttling offered:

1. Throttling Timer Setting
2. Throttling External Events

To configure throttling, select the process model, then on the configuration editor on the right side, select 'Throttling Timer Setting* or Throttling External Evens.

In the Dialog, click on the 'Throttling' tab.

Throttling Timer Settings

Throttling Timer Settings is Used to limit the number of processes that start with timer.

Throttling Timer settings contain 2 parameters:

1. Throttling limit: Contains 2 parameters.

   • Upper limit: When the number of active processes reaches this limit, we are in overflow-state.
   • Lower limit: When the number of active processes is below this limit, we are in normal mode.

2. Notification interval: Events from the same category and source will not be sent to receivers repeatedly. Instead, a new event will only be generated once the specified time span has passed. To receive a notification and the corresponding log file, set the notification interval to "Active." If you do not want to receive notifications, set it to "Inactive."

Throttling External Events

Throttling External Events is used to limit the number of processes that start with external events.

Throttling External events contains 3 parameters:

1. Throttling limit: Contains 2 parameters.

   • Upper limit: When the number of active processes reaches this limit, we are in overflow-state.
   • Lower limit: When the number of active processes is below this limit, we are in normal mode.

2. Notification interval: Events from the same category and source will not be sent to receivers repeatedly. Instead, a new event will only be generated once the specified time span has passed. To receive a notification and the corresponding log file, set the notification interval to "Active." If you do not want to receive notifications, set it to "Inactive."

3. Rating: Contains 3 parameters:

• Group

  • Group by source: The number of start events are counted as a group such as a caller IP Address.

  • No group: The number of start events are counted by each request.

• Number of Rating: Number of the process can be call in the specific duration

• Time unit: The rating duration can be selected by the following value: "Seconds", "Minutes", "Hours" and "Days".

External Event	Group by
AS2 Server	AS2 connection
Database Listener	Database connection
Email Listener	Email server connection
FTP Listener	FTP connection
File Listener	Filepath
Filename Listener	Filepath
HTTP File Streaming Server	Caller IP
HTTP Get Receiver	Caller IP
HTTP Post Receiver (General)	Caller IP
HTTP Post Receiver (Parameter)	Caller IP
LDP Listener	LDP channel
Message Queue Receiver	Message Queue Receiver channel
OFTP2 File Receiver	OFTP2 connection
OS process listener	Caller IP
Orchestra Parameter Receiver	Request IP
SAP RFC Receiver	SAP Server connection
TCP server	TCP connection
WebDAV Listener	Caller IP
Service provider	Caller IP
REST Service provider	Caller IP

⚠️ In rare cases, especially when the timer rate is very high, it is possible that more processes than the defined limit will be created. This can happen, since it may take some time between the timer event and the creation of a process instance. If only one process should be executed, please select bound process schedule with a limit of 1.