PCF 23.1.2 Max Limit Of 2 AppSessions Has Been Exceeded, Deleting Oldest Session (Doc ID 2951348.1)

Last updated on JUNE 02, 2023

Applies to:

Symptoms

In  PCF 23.1.2 version , one would observe that  Rx sessions being  getting deleted once it reached the configured limit (default max limit of 2) 

example symptom includes:  below issue during Voice Calls.

1) When Subscriber A is calling to Subscriber B --> Call is getting matured and running Fine.
2) But during A to B Ongoing Call, when Subscriber C is calling to Subscriber A. Call is getting dropped between subscriber A-B as well.

Conference call was not working and dropping the existing A to B call (A & B ongoing call. C party calling A party accept the call)

Log messages showing the issue:

{"instant":{"epochSecond":1684236531,"nanoOfSecond":148226194},"thread":"boundedElastic-1354","level":"INFO","loggerName":"ocpm.pcf.service.sm.domain.component.SmfManager","message":"Max limit of 2 appSessions has been exceeded, deleting oldest appSession AppSessionInfo{appSessionId='rx.xxxx01.ims.mnc015.mcc234.3gppnetwork.org;1727592241;80766;ppb5_xx@192.168.2.26;3', pccRules={0.0=class PccRule {\n flowInfos: null\n appId: null\n contVer: null\n pccRuleId: volte\n precedence: null\n afSigProtocol: null\n qosFlowUsage: null\n appReloc: null\n refQosData: null\n refTcData: null\n refChgData: null\n refUmData: null\n refCondData: null\n}}, eventsSubsData=class EventsSubscReqData {\n events: [class AfEventSubscription {\n event: FAILED_RESOURCES_ALLOCATION\n notifMethod: EVENT_DETECTION\n }]\n notifUri: http://occnp-2310-64a23-w9aff-occnp-diameter-connector:8000/smservicenotify/n usgThres: null\n reqAnis: null\n}, appSessionType=Rx, sessionTerminationInProgress=false, creationTimestamp=1684236452869, updateTimestamp=1684236452869}","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","threadId":52841,"threadPriority":5,"messageTimestamp":"2023-05-16T11:28:51.148+0000"}

Cause

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