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ASF GitHub Bot commented on FLINK-6336: --------------------------------------- Github user rsingh2411 commented on the issue: https://github.com/apache/flink/pull/3744 Getting similar error, whileadding Unique host constraint. How did you fix that imestamp=2018-05-16 10:52:34,105 LogLevel=ERROR ThreadId=[flink-akka.actor.default-dispatcher-3] Class=c.n.f.TaskScheduler Msg=Unexpected during concurrent task assignment eval - java.lang.NoClassDefFoundError: Could not initialize class com.netflix.fenzo.ConstraintFailure java.util.concurrent.ExecutionException: java.lang.NoClassDefFoundError: Could not initialize class com.netflix.fenzo.ConstraintFailure > Placement Constraints for Mesos > ------------------------------- > > Key: FLINK-6336 > URL: https://issues.apache.org/jira/browse/FLINK-6336 > Project: Flink > Issue Type: New Feature > Components: Mesos > Affects Versions: 1.2.0 > Reporter: Stephen Gran > Assignee: Stephen Gran > Priority: Minor > Fix For: 1.3.0 > > > Fenzo supports placement constraints for tasks, and operators expose agent > attributes to frameworks in the form of attributes about the agent offer. > It would be extremely helpful in our multi-tenant cluster to be able to make > use of this facility. -- This message was sent by Atlassian JIRA (v7.6.3#76005)