Compressor stalls when running additional Compressor instances

Question

I have been running Compressor 4.1.1 for months on my Mac Pro utilizing the maximum number of "additional Compressor instances" that my computer supports (3).  A couple of days ago I had to do a complete re-install of my Mavericks OS on my boot drive (saving a back up just in case).  Since the clean install of Mavericks and re-installation of Compressor I have been unable to run multiple Compressor instances.  Compressor just stalls with the status showing "Waiting".  Trashing the contents of the ~Library/Application Support/Compressor folder clears the waiting processes.  But unless I disable additional instances the same thing happens as before.
In console I get this message:
<mrk tms="421899309.096" tmt="05/15/2014 20:15:09.096" pid="3518" kind="begin" what="log-session"/>
<mrk tms="421899309.096" tmt="05/15/2014 20:15:09.096" pid="3517" kind="begin" what="log-session"/>
<log tms="421899362.165" tmt="05/15/2014 20:16:02.165" pid="3460" lvl="2" msg="CException caught: Failed to open file /Users/jbaugh/Library/Application Support/Compressor/Storage/5AF56292-011B828F/jobs/directory: No such file or directory"/>
<log tms="421899362.166" tmt="05/15/2014 20:16:02.166" pid="3460" msg="Turning on unmanaged services for [This Computer]"/>
<mrk tms="421899362.166" tmt="05/15/2014 20:16:02.166" pid="3460" kind="begin" what="CJobControllerService::publishClusterStorage"></mrk>
<log tms="421899362.167" tmt="05/15/2014 20:16:02.167" pid="3460" msg="Cluster storage URL = file2nfs://localhost/Users/jbaugh/Library/Application%20Support/Compressor/Stor age/5AF56292-011B828F/shared/"/>
<log tms="421899362.167" tmt="05/15/2014 20:16:02.167" pid="3460" msg="Publishing shared storage."/>
<log tms="421899362.178" tmt="05/15/2014 20:16:02.178" pid="3460" msg="Subscribing to shared storage, local path = /Users/Shared/Library/Application Support/Compressor/Storage/5AF56292-011B828F/shared"/>
<mrk tms="421899392.000" tmt="05/15/2014 20:16:32.000" pid="3460" kind="end" what="CJobControllerService::publishClusterStorage"></mrk>
<log tms="421899392.000" tmt="05/15/2014 20:16:32.000" pid="3460" msg="CJobControllerService::startClusterStorage() failed: Shared storage client timed out while subscribing to %22nfs://Johns-Mac-Pro.local/Users/jbaugh/Library/Application%20Support/Compres sor/Storage/5AF56292-011B828F/shared;port=1024%26hostUUID=76E0B949-EE4A-55AC-BF9 C-F672A61F4F56%22"/>
What can I do to get additional instances to work again?
Thanks.
John

Answer 1

Russ,
Thank you for your suggestion.  At this point I don't know if I had the Apple Qmaster folder or not.  You see, after working all day yesterday trying to resolve this issue I finally gave up and once more erased my boot drive and did another clean install of Mavericks.  This time, after the install, the first thing I did was repair permissions.  Much to my surprise there was a very long list of permission problems that had to be repaired. I then re-downloaded Compressor.  The first thing I did was set the number of Compressor instances to the maximum of three.  I held my breath and tried a short encode.  Much to my relief everything proceded normally.  So I don't have the answer to what caused this problem.  But a re-install and repair of permissions was all I did to get it resolved.  Now I have the fun part– re-installing all my apps, importing mailboxes, and setting up all my preferences and such.  I will not use the Migration Assistant because that may have induced the problems in my previous clean install?  I may have migrated something that caused problems. So at about 1:00 AM this morning I shut everything down until I could go at it again this morning.