Bob (and all), I see in this post that you were tracking down a problem I am currently seeing. Lots of waiters in deadlock with "waiting for exclusive use of connection for sending msg". Did you ever determine a fix / cause for that? I see your previous comments below. We are still on 4.2.0 https://www.ibm.com/developerworks/community/forums/html/topic?id=c25e31ad-a2ae-408e-84e5-90f412806463 Thanks, Brian -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20161205/210530c0/attachment.html>