I've read online; the issues about OrientDB
Were using ArangoDB for 10 months
I've personally submitted at least 3 bugs, and other issues during this period
The team is responsive, and they try their best to resolve the issues
But there are still some bugs that they delay fixing them
You should be reading the open issues to avoid these bugs
Some of them that I can remember:
1- Do Not use "global" object in Foxx Services! You can FU** the whole DBMS
2- You Can't Have different databases with the same collection names and document keys, it causes DATA LOSS (e.g. DB A and B, both have a collection named "users", in both collections; exists a document with key 12, this causes the problem)