new HashMap<String, MockParticipantManager>();
for (int i = 0; i < 6; i++) {
String instanceName = "localhost_123" + i;
MockParticipantManager participant =
new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
participant.syncStart();
participants.put(instanceName, participant);
}
HelixDataAccessor accessor = participants.get("localhost_1231").getHelixDataAccessor();
// drop node should fail as not disabled