WSO2 IS Kubernetes - Workflow doesn't work with 2 replicas of stateful sets

[yuniet87]

Description:
When there are 2 replicas of the IS Stateful Set, the workflow sometimes works and another doesn't. When the IS Stateful Set has a single replica it works perfectly until the Pod is restarted, when it restarts it stops working until you eliminate the Workflow Definition and add it again.
The error in all cases is the following:

Thanks in advance.

Affected Product Version: IS-5.10.0

OS, DB, other environment details and versions:

• Kubernetes: v1.18.2
• MySQL: 5.7.31

Steps to reproduce:

• Deploy the Kubernetes Helm Chart[1].
• Add the Workflow Definition and the Workflow Engagements. Test it.
• Scale the IS Stateful Set to 1 and add a new Workflow Definition and Workflow Engagements if the other one doesn't work. Test it.
• Then restart the pod or scale the IS Stateful Set to 0 and then to 1. Test it.

1. https://github.com/wso2/kubernetes-is/tree/master/advanced/is-pattern-1#helm-chart-for-a-clustered-deployment-of-wso2-identity-server

[yuniet87]

Moved to wso2/kubernetes-is#269