Hi,

Now our event store is almost complete and working quite well on top of 
OrientDB, thank you!

I'm wondering what the best setup/configuration is for our case.

Inserts:

   - We have a single thread inserting into the database from a message 
   queue
   - About 500 - 2000 event messages are inserted every second.
   - It batches the events messages and writes them in batches depending on 
   batch_size or time_box, what ever comes first.
   - Each event message creates multiple vertexes/edges
   
Queries

   - Queries are handled directly with the REST API or with exposing a 
   version of the Java SQL-API.
   - We need to be able to deal with a high number of concurrent queries 
   (most of them are quite simple)

The things I'm considering and need help with are:

   1. Should we ignore transactions and WAL because of the single threaded 
   inserts?
   2. What is the best way to make sure read-locking is not in the way for 
   queries?
   3. What configuration would you recommend?

Regards,
  -Stefán

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