I have also tested and reproduced on Azure, logs below:

garym@latitude:~$ juju status --format=yaml
model:
  name: bigtop
  controller: osd-nordics-azure
  cloud: azure
  region: northeurope
  version: 2.0-rc1
machines:
  "0":
    juju-status:
      current: down
      message: agent is not communicating with the server
      since: 22 Sep 2016 16:14:37+01:00
    instance-id: pending
    machine-status:
      current: pending
      since: 22 Sep 2016 16:09:41+01:00
    series: trusty
  "1":
    juju-status:
      current: started
      since: 22 Sep 2016 16:24:54+01:00
      version: 2.0-rc1
    dns-name: 52.169.11.116
    instance-id: machine-1
    machine-status:
      current: running
      since: 22 Sep 2016 16:24:49+01:00
    series: trusty
    hardware: arch=amd64 cores=1 mem=1792M root-disk=30720M
  "2":
    juju-status:
      current: down
      message: agent is not communicating with the server
      since: 22 Sep 2016 16:11:26+01:00
    instance-id: pending
    machine-status:
      current: pending
      since: 22 Sep 2016 16:09:46+01:00
    series: trusty
  "3":
    juju-status:
      current: down
      message: agent is not communicating with the server
      since: 22 Sep 2016 16:12:03+01:00
    instance-id: pending
    machine-status:
      current: pending
      since: 22 Sep 2016 16:09:49+01:00
    series: trusty
  "4":
    juju-status:
      current: down
      message: agent is not communicating with the server
      since: 22 Sep 2016 16:12:45+01:00
    instance-id: pending
    machine-status:
      current: pending
      since: 22 Sep 2016 16:09:51+01:00
    series: trusty
  "5":
    juju-status:
      current: down
      message: agent is not communicating with the server
      since: 22 Sep 2016 16:13:22+01:00
    instance-id: pending
    machine-status:
      current: pending
      since: 22 Sep 2016 16:09:53+01:00
    series: trusty
  "6":
    juju-status:
      current: down
      message: agent is not communicating with the server
      since: 22 Sep 2016 16:13:59+01:00
    instance-id: pending
    machine-status:
      current: pending
      since: 22 Sep 2016 16:09:56+01:00
    series: trusty
applications:
  client:
    charm: cs:trusty/hadoop-client-3
    series: trusty
    os: ubuntu
    charm-origin: jujucharms
    charm-name: hadoop-client
    charm-rev: 3
    can-upgrade-to: cs:trusty/hadoop-client-5
    exposed: false
    application-status:
      current: waiting
      message: waiting for machine
      since: 22 Sep 2016 16:09:40+01:00
    relations:
      hadoop:
      - plugin
    units:
      client/0:
        workload-status:
          current: waiting
          message: waiting for machine
          since: 22 Sep 2016 16:09:40+01:00
        juju-status:
          current: allocating
          since: 22 Sep 2016 16:09:40+01:00
        machine: "0"
  ganglia:
    charm: cs:trusty/ganglia-2
    series: trusty
    os: ubuntu
    charm-origin: jujucharms
    charm-name: ganglia
    charm-rev: 2
    exposed: false
    application-status:
      current: unknown
      since: 22 Sep 2016 16:27:04+01:00
    relations:
      node:
      - ganglia-node
    units:
      ganglia/0:
        workload-status:
          current: unknown
          since: 22 Sep 2016 16:27:04+01:00
        juju-status:
          current: idle
          since: 29 Sep 2016 06:14:57+01:00
          version: 2.0-rc1
        machine: "1"
        open-ports:
        - 80/tcp
        public-address: 52.169.11.116
  ganglia-node:
    charm: cs:trusty/ganglia-node-2
    series: trusty
    os: ubuntu
    charm-origin: jujucharms
    charm-name: ganglia-node
    charm-rev: 2
    exposed: false
    application-status:
      current: waiting
      message: waiting for machine
      since: 22 Sep 2016 16:09:07+01:00
    relations:
      juju-info:
      - namenode
      - resourcemanager
      - slave
      node:
      - ganglia
    subordinate-to:
    - namenode
    - resourcemanager
    - slave
  namenode:
    charm: cs:~bigdata-dev/trusty/apache-bigtop-namenode-13
    series: trusty
    os: ubuntu
    charm-origin: jujucharms
    charm-name: apache-bigtop-namenode
    charm-rev: 13
    exposed: false
    application-status:
      current: waiting
      message: waiting for machine
      since: 22 Sep 2016 16:09:45+01:00
    relations:
      datanode:
      - slave
      juju-info:
      - ganglia-node
      namenode:
      - plugin
      - resourcemanager
    units:
      namenode/0:
        workload-status:
          current: waiting
          message: waiting for machine
          since: 22 Sep 2016 16:09:45+01:00
        juju-status:
          current: allocating
          since: 22 Sep 2016 16:09:45+01:00
        machine: "2"
  plugin:
    charm: cs:~bigdata-dev/trusty/apache-bigtop-plugin-9
    series: trusty
    os: ubuntu
    charm-origin: jujucharms
    charm-name: apache-bigtop-plugin
    charm-rev: 9
    exposed: false
    application-status:
      current: waiting
      message: waiting for machine
      since: 22 Sep 2016 16:09:19+01:00
    relations:
      hadoop-plugin:
      - client
      namenode:
      - namenode
      resourcemanager:
      - resourcemanager
    subordinate-to:
    - client
  resourcemanager:
    charm: cs:~bigdata-dev/trusty/apache-bigtop-resourcemanager-12
    series: trusty
    os: ubuntu
    charm-origin: jujucharms
    charm-name: apache-bigtop-resourcemanager
    charm-rev: 12
    exposed: false
    application-status:
      current: waiting
      message: waiting for machine
      since: 22 Sep 2016 16:09:47+01:00
    relations:
      juju-info:
      - ganglia-node
      namenode:
      - namenode
      nodemanager:
      - slave
      resourcemanager:
      - plugin
    units:
      resourcemanager/0:
        workload-status:
          current: waiting
          message: waiting for machine
          since: 22 Sep 2016 16:09:47+01:00
        juju-status:
          current: allocating
          since: 22 Sep 2016 16:09:47+01:00
        machine: "3"
  slave:
    charm: cs:~bigdata-dev/trusty/apache-bigtop-slave-11
    series: trusty
    os: ubuntu
    charm-origin: jujucharms
    charm-name: apache-bigtop-slave
    charm-rev: 11
    exposed: false
    application-status:
      current: waiting
      message: waiting for machine
      since: 22 Sep 2016 16:09:50+01:00
    relations:
      juju-info:
      - ganglia-node
      namenode:
      - namenode
      resourcemanager:
      - resourcemanager
    units:
      slave/0:
        workload-status:
          current: waiting
          message: waiting for machine
          since: 22 Sep 2016 16:09:50+01:00
        juju-status:
          current: allocating
          since: 22 Sep 2016 16:09:50+01:00
        machine: "4"
      slave/1:
        workload-status:
          current: waiting
          message: waiting for machine
          since: 22 Sep 2016 16:09:52+01:00
        juju-status:
          current: allocating
          since: 22 Sep 2016 16:09:52+01:00
        machine: "5"
      slave/2:
        workload-status:
          current: waiting
          message: waiting for machine
          since: 22 Sep 2016 16:09:55+01:00
        juju-status:
          current: allocating
          since: 22 Sep 2016 16:09:55+01:00
        machine: "6"


ubuntu@machine-0:~$ sudo cat /var/log/juju/machine-0.log |pastebinit
http://paste.ubuntu.com/23249815/