Couchbase JVM client threading issues

[mico.piira]

Hello, here is a very similar question that I asked earlier Java SDK V 3.0 threading/scheduler question - #2 by david.nault

I received a good response discussing this topic on that thread by david.nault:

@david.nault

By default, the downstream operators are executed in the Netty Event Loop thread for the socket connected to the Couchbase Server node. If you had more than one Couchbase Server node, and the documents you were fetching lived on different nodes, you might see different threads being used.

If your processing is expensive and you have more CPUs than Couchbase nodes, it might make sense to distribute the work among all CPUs. You can do this by applying the publishOn operator to the get result. This specifies the scheduler to use for executing all downstream operators.