Hey All, If I recall correctly, many months ago Sudheesh discovered that we were having instability in RPC connections in some situations due to bugs in the epoll implementation that are fixed in a later version of Netty (~4.0.31?). At the time, we shelved switching Netty because it also changed the memory caching behavior (same thread to all thread) which seemed like a high risk change. I thought that as part of this we decided the safest change was to disable epoll RPC in our distribution. However, reviewing drill-env, it doesn't look like we do this. See here [1].
Thoughts? [1] https://github.com/apache/drill/blob/master/distribution/src/resources/drill-env.sh#L19 -- Jacques Nadeau CTO and Co-Founder, Dremio
