Check_MK Werk 8219: Avoid possible dead lock in core when many RRD creations take place

ID: 8219 Title: Avoid possible dead lock in core when many RRD creations take place Component: cmc Level: 1 Class: Bug fix Version: 1.2.7i1 This fix addresses a possible situtation where many RRD creation commands are issued at the same time as the RRD creation helper sends back error or diagnostic messages. In rare situations that could have lead to the core waiting for the helper and vice versa. This has been fix (though only rarely happening at all).