fix: command parsing and executing caused console dead lock #1565
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Motivation
Executing a lot of commands while e.g. services are starting (printing messages to the console) can lead to dead locks. This issue was probably introduced with the cloud 2.0 migration. Prior to cloud 2.0 the framework used to run suggestions on the caller thread. With cloud 2.0 a shared thread pool for suggestion, parsing and executing can be used. This then leads to dead locks.
Modification
Explicitly set the thread pool for parsing & executing only. Suggestions are processed on the caller thread (thus restoring cloud 1.0 behavior.
Result
No dead-locks of the console.