Use two thread pools for handling the OpenFlow STATS and BARRIER messages.
This fixes a problem where a large number of incoming STATS messages
is practically using all available threds from the pool (16), and
there are no available threads to handle the BARRIER messages.

Change-Id: I1130eb8f3b5a17d5d3a7825f32da68eacb99569a

fixing other threadpool issues, ie. not using cachedThreadPool

Change-Id: I40ef10e1f704aef779b2a23c0497dfb7992520eb
3 files changed