Different attributes for Managed-Executor-Services in EAP 7

Issue

What are different attributes available on managed executor service?
How to configure managed executor service?
When the queue is that full why are not more threads created?
How to monitor current queue-size?
Do you have a hint how to find optimal setting between max thread numbers and max queue size? Do you have a hint how to find optimal setting between max thread numbers and max queue size?
What effect has the attribute "long-running-tasks"? Up from which duration a task should be considered as long-running?

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