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PI BPL Error Message "NACK:69-Response timeout from trigger daemon for <BPL name>" when No Response Received from smsTrigDaemon within 10 Seconds (Doc ID 1297857.1)

Last updated on JANUARY 30, 2022

Applies to:

Oracle Communications Network Charging and Control - Version 4.3.0 and later
Information in this document applies to any platform.


If a PIprocess does not receive a response from the smsTrigDaemon process within 10 seconds, for a PI BPL command, then the PIprocess will time out the transaction and generate the following error message in the /IN/service_packages/PI/tmp/PImanager.log file.

BPL (Business Process Logic) functionality provides the ability to access the power of Advanced Control Services (ACS) functionality by using the PI (Provisioning Interface) to trigger a control plan (via smsTrigDaemon) on an SLC (Service Logic Controller) node (via xmlTcapInterface).

For further background reference reading on BPL please refer to the following documentation:

  • CCS Task Management User Guide
  • CCS Technical Guide
  • PI User and Technical Guide
  • SMS Technical Guide (re: smsTrigDaemon)

If you do not have the relevant documentation then see <note 1341844.1> - How to Download Oracle Communications Network Charging and Control (OCNCC/NCC) Documentation.

Below is a simple sequence diagram to better illustrate the logical flow that causes this NACK (Not Acknowledged) error message to be generated.


  •  the highlighted alternative section above shows both a successful and timed-out PI response sequence (3 and 4).
  • The PIprocess and smsTrigDaemon processes run on the SMS  (Service Management Server), with the xmlTcapInterface process(es) running on SLCs.




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In this Document
 1. BPL task fails on SLC
 2. Overly complex BPL task
 3.  Poor server performance
 4. Process debug turned on affecting server performance
 5. Network errors or poor latency

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