DB migration from WSO2 bps to Camunda

Camunda 7 Topics Discussion & Questions
1

Hello guys,

We are currently using wso2 bps as our BPMN engine and we would like to migrate to Camunda as of now. Are there any kind of a migration documents and probably some hints on how to start doing that?

Thanks in advance

2

Hi @Alex_Malinovsky,

I found a quote on their webpage: “BPMN 2.0 Engine is powered by Activiti”,

So you can start to read here: https://blog.camunda.com/post/2016/10/migrate-from-activiti-to-camunda/ and here: https://blog.camunda.com/post/2016/10/camunda-engine-since-activiti-fork/.

Hope this helps, Ingo

3

Thanks for your answer. I tried that but I noticed that there are no scripts which update version in ACT_GE_PROPERTY table and my version 5.21.00.0 left unchanged so Camunda didn’t start with that version. Did I miss anything? I applied 3 scripts from the first link. Also when I manually change the version in that table I receive another issue:

Caused by: org.h2.jdbc.JdbcSQLException: Unique index or primary key violation: “PRIMARY KEY ON “””".PAGE_INDEX"; SQL statement:
ALTER TABLE PUBLIC.ACT_ID_MEMBERSHIP ADD CONSTRAINT PUBLIC.ACT_FK_MEMB_USER FOREIGN KEY(USER_ID_) REFERENCES PUBLIC.ACT_ID_USER(ID_) NOCHECK [23505-197]…

4

Ok, it looks like there were some issues with my h2 DB. After I tried it on Oracle copy - it worked fine. Also there is one flag which needs to be turned on in order to avoid issues with versions -

camunda.bpm:
database:
schema-update: true
Thanks.

5