ARD 3.5 upgrade - Keycloak error

Products

• CA Agile Requirements Designer

Issue/Introduction

In the process of manual upgrade to ARD 3.5, upgraded the Keycloak version from 21.x.x to 24.0.5. Now when starting the Keycloak, getting below error and it fails to start.

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2024-10-24 14:03:15,238 ERROR [org.infinispan.CLUSTER] (jgroups-7,<id>) ISPN000475: Error processing response for request 2 from <id>: java.io.IOException: Unknown type: 28

2024-10-24 14:06:34.456 ERROR [flow-storage,,] 64411 --- [onPool-worker-1] ardflowstorage.security.KeycloakClient   : Failed to get Flow Storage access token from Keycloak.

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Environment

ARD HUB - 3.5

KEYCLOAK - 24.0.5

Cause

This has been identified as a issue in Keycloak version 24.0.x where the infinispan component of Keycloak is reporting this error.

Resolution

In order to resolve this error, start the Keycloak service for ARD with below command.

./kc.sh start --cache=local

Additional Information

Keycloak github references:

- https://github.com/keycloak/keycloak/issues/28944

- https://github.com/keycloak/keycloak/issues/28955

- https://github.com/keycloak/keycloak/issues/28617