My project uses Camunda 7 + Spring Boot 3.x to manage the workflows. We recently ran into a transaction issue where we had a retry-serializable exception during a concurrent bpmn validator execution. Typically, Camunda should/would be able to handle concurrent executions. We don’t have any configs set in the code. It’s just an out-of-the-box Spring Boot with Camunda 7.
I may be missing some generic config (may be Camunda config/ data source config). Any help would be deeply appreciated.
Hello @Balachandran ,
we dropped support for cockroach db in 7.21: Support Announcements | docs.camunda.org
Is there a reason why you need to use it?
Jonathan
Hey @jonathan.lukas ,
I didn’t realize that Cockroach DB doesn’t have support anymore!.
But cockroach DB is our org preferred RDBMS and we’ve onboarded the same with camunda and we are in prod already.
Is there any way to help me out here?
I am getting retry serializable error for all the concurrent executions.
I see this issue reported in the past in the Camunda forum. If you have any documents/solutions handy, it would help us a lot 
.
Regards,
Bala
Hello @Balachandran ,
unfortunately not. Maybe the migration to a “real transactional” database like postgresql would help here.
Jonathan