Always 1 Gremlin Worker Threads Active in DSE Graph

Question

In my DSE cluster I have these settings: threadPoolWorker = 32 and gremlinPool = 64

However, when I run any kind of gremlin query (heavy queries too), I always see from the Dashboard of the OpsCenter that at most only 1 per node Worker thread is active.

Is that normal?

Answer 1

Yes this is normal,.

You will generally never use more than one thread pool worker as

http://tinkerpop.apache.org/javadocs/3.2.3/full/org/apache/tinkerpop/gremlin/server/Settings.html#threadPoolWorker

You probably want to leave threadPoolWorker as the default value.

Answer 2

Why are you changing the defaults for threadPoolWorker and gremlinPool? Those are typically not adjusted.