+1 To what Robert said. You have a couple options here:
* use ForkJoinPool, which scales much more gracefully under load.
* If your RPC logic is pretty simple, and does not block (like, ever),
you can use directExecutor() on the server builder and run RPCs inline.
This avoids the need
If you get multiple requests that are external, and all of these take 200ms,
you are going to be blocked… if the requests are IO bound, then 4 is too small
for the pool, and by increasing the pool size if other requests arrive that are
not external they can be handled
> On Nov 27, 2018, at
