Sanne/hibernate-ogm — comment on commit 38e37d52a3679c484b9b234428bb915f0269836d
File: hibernate-ogm-core/src/main/java/org/hibernate/ogm/dialect/infinispan/InfinispanDialect.java line 87
By Sanne:

using FGAM you can lock what you need, you're in control. You're still able to acquire pessimistic locks; with _AtomicMap_ as you've learned the hard way, it acquires a plethora of locks which are not really wanted including write lock on reads.
DB doesn't acquire a write lock on a read right? unless it's SERIALIZABLE I mean