Github user sudheeshkatkam commented on the issue:
https://github.com/apache/drill/pull/925
Nice catch @weijietong
Looks like the Netty thread, that is failing all outstanding requests to a
certain endpoint, is itself trying to send a message (cancel fragment) to that
endpoint. Any ideas on how to fix that?
Apart from Paul's comment, the current patch looks good to me as well. The
above fix is a nice-to-have.---
