First of all thanks for your reply.
Yes, I am able to increase IS resource and issue get temporarily resolved after increasing threads of Server Thread Pool but to get it permanent resolve I need to identify if this can be restrict by applying any fix or by setup any property on IS server.
Like when I search in tech community I found something related with same problem described below::
Article ID: PIE-33718
Fix ID: IS_9.7_Core_Fix2
Product Group: INTEGRATION
Product Version: 9.7
Platform Group: ALL
Date: 19. January 2015
Link to Document in Empower: https://empower.softwareag.com/sl24sec/SecuredServices/KCFullTextASP/viewing/view.asp?KEY=522651-13296981&DSN=ITRAC&DST=UPDATE
Integration Server creates additional session threads while executing triggers and displays a misleading expiration value.
When watt.server.trigger.reuseSession (for Broker/local triggers in Integration Server version 9.0 SP1 and earlier or webMethods messaging triggers in version 9.5 SP1 and later) or watt.server.jms.trigger.reuseSession (for JMS triggers) is set to false, Integration Server displays an additional session thread for the trigger. In addition, regardless of the values set for watt.server.trigger.reuseSession and watt.server.jms.trigger.reuseSession server configuration parameters, Integration Server Administrator displays the session on the Server > Statistics > Session screen with a Session Expires value of 9223372036854775807 and the session never expires.
This issue is resolved. When either the
watt.server.jms.trigger.reuseSession server configuration parameter is set to false, Integration Server no longer creates extra sessions for the respective trigger. For these sessions, Integration Server Administrator displays â€œupon service completionâ€? in the Session Expires column on the Server > Statistics > Sessions screen for trigger-related sessions. This indicates that the session will remain until the service executed by the trigger finishes. Once the service finishes, Integration Server removes the session.
When either the watt.server.trigger.reuseSession or watt.server.jms.trigger.reuseSession server configuration parameter is set to true, Integration Server shares one session for each execution of the trigger. In this case, Integration Server Administrator displays a value of “never” in the Session Expires column of the Server > Statistics > Sessions screen and the session does not expire.
But still I am not sure this can help me to resolve this problem.
Current Configuration of server which we are using::
Product webMethods Integration Server