In ZooKeeper if two different jobs run concurrently on a host (2 slots) we can run into problems with conflicting resource usage (ports). Would it be possible to install this plugin? https://wiki.jenkins-ci.org/display/JENKINS/Throttle+Concurrent+Builds+Plugin and add ZooKeeper as an initial category? (with 0, 1 as the total/concurrent builds respectively on the global cat config).
This would address the problem for us on Solaris01. Thanks! Patrick