Checkmk Werk 13684: Agent Bakery: Minimize time locking the Checkmk configuration

ID: 13684 Title: Agent Bakery: Minimize time locking the Checkmk configuration Component: agents Level: 1 Class: Bug fix Version: 2.2.0i1 Previously, the agent bakery (or more precisely: The background job scheduling a call to the agent bakery) locked the Checkmk configuration for the entire baking time. This caused some other operations that need access to the configuration, like sending notifications or changing global settings, to fail with the following error message: C+: Couldn't lock the Checkmk configuration. Another process is running that holds this lock. In order for you to be able to perform the desired action, you have to wait until the other process has finished. Please try again later. C-: Instead of querying the Checkmk configuration multiple times, the agent bakery now gathers all needed configurations on startup while holding a lock, and releases it prior to invoking the more time consuming baking of agent packages.