[ https://issues.redhat.com/browse/WFLY-13632?page=com.atlassian.jira.plugi... ] Brian Stansberry commented on WFLY-13632: ----------------------------------------- [~mmusgrov] [~tomjenkinson]   There can be more than one /subsystem=transactions/commit-markable-resource=* resource and the CMResourceAdd handler will install an instance of CMResourceService for each. Those *install* calls will happen in series (e.g. during boot) from a single thread, and no other management op can come in and add resource another commit-markable-resource=* resource at the same time. But installing an MSC Service is not the same as starting the service – MSC invokes the start method on services concurrently using its thread pool. So you can definitely get concurrent calls to CMResourceService.start(StartContext).   -- This message was sent by Atlassian Jira (v7.13.8#713008)