Encountered an error during the login to the application when customer upgrade the APM Websphere agent version to 2023.8

Products

• CA Application Performance Management (APM / Wily / Introscope)

Issue/Introduction

Customer  did not have the app login issue with the older APM agent version 20.3 and 20.6.  One of their apps started to have issue with agent version 21.4.

Customer is  using the DX APM 2023.8.1.6 noredefnoretrans version of Agent.jar .

 Customer found the following errors logged by<name> server when having the app login failure:

ERROR

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> IBMCicsGateway.flow(): An error occurred while invoking the ECI connection: CTG9631E Error occurred during interaction with CICS: ECI_ERR_INVALID_CALL_TYPE

 >The following error was returned from the <hostname> server:xxxxxx: IBMCicsGateway.flow(): An error occurred while invoking the ECI connection: CTG9631E Error occurred during interaction with CICS: ECI_ERR_INVALID_CALL_TYPE PF07-2063: Please contact system administrator for more information.

> Either the session, request or response objects are null in the authenticator.

>Error creating <name>session [timestamp] <name> I   com.ibm.ws.webcontainer.srt.SRTServletRequest@xxxx [timestampT] 000000e6 IBMCicsGatewa E   PF07-2125: IBMCicsGateway.flow(): An error occurred while invoking the ECI connection: CTG9631E Error occurred during interaction with CICS: ECI_ERR_INVALID_CALL_TYPE PF07-2063

 

 

Environment

 DX APM 2023.8.1.6 noredefnoretrans version of Agent.jar .

Resolution

Troubleshooting done to identify the issue as below

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 >The app login failure was not reproduced with just auto probe enabled, but all .pbl/.pbd excluded in agent profile and all bundles excluded in extension profile.

 >The app login failure was not reproduced with auto probe enabled and all default .pbl/.pbd included in agent profile, but all bundles still excluded in extension profile.

 >The app login failure was reproduced with auto probe  enabled, all default .pbl/.pbd included in agent profile, and CTG extension bundle added in extension profile.

 

Solution provided:

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And after reviewing all the logs and configuration setting  we found  the ctg extension is getting clash with their application . So we remove  it  from the apps\wily\releases\2023.8-noredef\extensions file and re-started the application .  Post that application is working fine no login error  and metrics are reporting fine.