Thanks for your answer.
I have another question, I noticed that there is a Arangodb Server Option:
The notes below says that "The amount of time (in seconds) the Coordinator waits for an index to be created before giving up."
Does this "giving up" mean that if the index is not successfully created after the time limit, then the index will stop being created?
In addition, "Effective on Coordinators only", what exactly is the function of the Coordinators here? Or what exactly is this role responsible for during index creation?
Thanks