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SLEE Reporting "No available call instances" or "SleeException: No more calls" or "SleeException: No more events" (Doc ID 1204644.1)

Last updated on JANUARY 26, 2021

Applies to:

Oracle Communications Network Charging and Control - Version 2.2.0 to 4.3.0 [Release 2.2 to 4.3]
Information in this document applies to any platform.

Symptoms

This article aims to explain about some possible causes that can lead Service Logic Execution Environment (SLEE) reporting about:
- "No available call instances"
- or "SleeException: No more calls"
- or "SleeException: No more events".
However, those causes may not be related with each others. Instead, those causes are documented to make identification easier.

 

1. SLEE running out of events to handle incoming requests via a SLEE interface or requests generated by a SLEE application, such as slee_acs sending a profile update request or update statistics

 

Example error messages found in the /var/adm/messages would include:

 

Cause

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In this Document
Symptoms
 1. SLEE running out of events to handle incoming requests via a SLEE interface or requests generated by a SLEE application, such as slee_acs sending a profile update request or update statistics
 2. Though the SLEE resource utilization is increasing, the Call Attempt Per Second (CAPS) rate shows normal condition (no traffic spike)
 3.Call Initiation (CI) Node Causes Event Leak After Receiving Empty TCAP-END
Changes
Cause
 Cause 1 - The most common cause for this problem is the events size is not properly defined for the SLEE
 Cause 2 - Known BUG on Messaging Manager software v4.0.3.2 (or older version).
 Cause 3 - Call Initiation (CI) Node Causes Event Leak After Receiving Empty TCAP-END
Solution
 Solution 1 - To correct the issue, review the number of events allocated to the SLEE, and consider increasing
 Solution 2 - Known BUG on Messaging Manager
 Solution 3 - Call Initiation (CI) Node Causes Event Leak After Receiving Empty TCAP-END
References


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