helix-core/src/main/java/org/apache/helix/manager/zk/ZKHelixAdmin.java [2031:2046]:
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    for (String state : statePriorityList) {
      String count = stateModDef.getNumInstancesPerState(state);
      if (count.equals("1")) {
        if (masterStateValue != null) {
          throw new HelixException("Invalid or unsupported state model definition");
        }
        masterStateValue = state;
      } else if (count.equalsIgnoreCase(StateModelDefinition.STATE_REPLICA_COUNT_ALL_REPLICAS)) {
        if (slaveStateValue != null) {
          throw new HelixException("Invalid or unsupported state model definition");
        }
        slaveStateValue = state;
      } else if (count.equalsIgnoreCase(
          StateModelDefinition.STATE_REPLICA_COUNT_ALL_CANDIDATE_NODES)) {
        if (!(masterStateValue == null && slaveStateValue == null)) {
          throw new HelixException("Invalid or unsupported state model definition");
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helix-core/src/main/java/org/apache/helix/util/RebalanceUtil.java [121:136]:
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    for (String state : statePriorityList) {
      String count = stateModDef.getNumInstancesPerState(state);
      if (count.equals("1")) {
        if (masterStateValue != null) {
          throw new HelixException("Invalid or unsupported state model definition");
        }
        masterStateValue = state;
      } else if (count.equalsIgnoreCase(StateModelDefinition.STATE_REPLICA_COUNT_ALL_REPLICAS)) {
        if (slaveStateValue != null) {
          throw new HelixException("Invalid or unsupported state model definition");
        }
        slaveStateValue = state;
      } else if (count.equalsIgnoreCase(
          StateModelDefinition.STATE_REPLICA_COUNT_ALL_CANDIDATE_NODES)) {
        if (!(masterStateValue == null && slaveStateValue == null)) {
          throw new HelixException("Invalid or unsupported state model definition");
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