Comment 2 for bug 1715141

Dear Oslo Team, https://bugs.launchpad.net/mistral/+bug/1696469 has been closed but it has unexpected consequences that make it necessary to keep using the blocking executor. Namely, under high parallelism, the connections to RMQ becomes unstable to the point when it starts missing heartbeats and finally causing the whole service to fail unrecoverably. We are working on fixing this issue.