@Override
        public String isConditionMet() {
            if (currentState == null) {
                return "No cluster state defined yet";
            }
            double currentProgress = currentState.getNodeState(node).getInitProgress();
            if (currentProgress < minProgress) {
                return "Current progress of node " + node + " at " + currentProgress + " is less than wanted progress of " + minProgress;
            }
            return null;
        }
Returns the given state string with timestamps removed
clustercontroller-core/src/test/java/com/yahoo/vespa/clustercontroller/core/testutils/WaitCondition.java