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)

Symptoms

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.

Notes:

•  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.

Changes

Cause

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