ansible/hadoop.yml

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#    http://www.apache.org/licenses/LICENSE-2.0
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- hosts: proxy
  tasks:
    # This is currently needed to run hadoop with Java 11 (see https://github.com/apache/fluo-muchos/issues/266)
    - name: "Download javax.activation-api for Hadoop 3 when Java 11 is used"
      command: "{{ maven_home }}/bin/mvn dependency:copy -Dartifact=javax.activation:javax.activation-api:1.2.0 -DoutputDirectory={{ user_home }}/mvn_dep/"
      when: hadoop_major_version == '3' and java_product_version == 11

- hosts: all:!{{ azure_proxy_host|default("") }}
  roles:
    - hadoop
- hosts: journalnode
  tasks:
    - import_tasks: roles/hadoop/tasks/start-journal.yml
      when: hdfs_ha
- hosts: namenode[0]
  tasks:
    - import_tasks: roles/hadoop/tasks/format-nn.yml
- hosts: namenode[0]
  tasks:
    - import_tasks: roles/hadoop/tasks/format-zk.yml
      when: hdfs_ha
- hosts: namenode
  tasks:
    - import_tasks: roles/hadoop/tasks/start-zkfc.yml
      when: hdfs_ha
- hosts: namenode[0]
  tasks:
    - import_tasks: roles/hadoop/tasks/start-nn1.yml
- hosts: namenode:!namenode[0]
  tasks:
    - import_tasks: roles/hadoop/tasks/start-nn2.yml
      when: hdfs_ha
- hosts: namenode
  tasks:
    - import_tasks: roles/hadoop/tasks/start-hdfs.yml
- hosts: resourcemanager
  tasks:
    - import_tasks: roles/hadoop/tasks/start-yarn.yml
    - import_tasks: roles/hadoop/tasks/start-jhs.yml