Inside the Docker container an Adabas tool is checking, if a second instance is trying to access the Adabas container. A new file called "ADAHAM" is created to share information between different Docker container instances.

If an instance is already registered and uses the Adabas container, the second instance will wait for the release of the access. During the database creation process inside the container it might happen, that the process does not work correctly.

The Adabas use case and the Adabas administration use case work with the same concurrent check. But the Adabas administration of the second Docker container is not able to access the running Adabas information of the first Docker container.