---
- name: Install the mapred-site config file for the jobtracker HA
  template: src=mapred-site-jobtracker.j2 dest=/etc/hadoop/conf/mapred-site.xml owner=root group=root mode=0444
  notify:
    - Restart mapreduce HA jobtracker
  tags: [ 'hadoop', 'jobtracker', 'jt_conf' ]

- name: Install the mapred-queue-acls config
  copy: src=mapred-queue-acls.xml dest=/etc/hadoop/conf/mapred-queue-acls.xml owner=root group=root mode=0444
  notify:
    - Restart mapreduce HA jobtracker
  tags: [ 'hadoop', 'jobtracker' ]

- name: Install the mapreduce schedulers config
  copy: src=mapreduce-{{ item }} dest=/etc/hadoop/conf/{{ item }} owner=root group=root mode=0444
  with_items:
    - fair-scheduler.xml
    - capacity-scheduler.xml
  tags: [ 'hadoop', 'jobtracker', 'jt_scheduler' ]

- name: Install the mapred_hosts_allow config
  template: src=mapred_hosts_allow.txt.j2 dest=/etc/hadoop/conf/mapred_hosts_allow.txt owner=root group=root mode=0444
  notify:
    - Restart mapreduce HA jobtracker
  tags: [ 'hadoop', 'jobtracker', 'hadoop_workers' ]

- name: Install the mapred_hosts_exclude config
  copy: src=mapred_hosts_exclude.txt dest=/etc/hadoop/conf/mapred_hosts_exclude.txt owner=root group=root mode=0444
  tags: [ 'hadoop', 'jobtracker', 'hadoop_workers', 'hadoop_exclude' ]

- name: Check if the hadoop-jmx conf directory exists
  stat: path=/etc/hadoop-jmx/conf
  register: check_jmx_confdir
  tags: [ 'hadoop', 'jobtracker', 'jmx' ]

- name: Distribute the jmx authorization files for the jobtracker
  template: src=templates/jmxremote.passwd.j2 dest=/etc/hadoop-jmx/conf/jmxremote.passwd owner=mapred mode=0600
  when: check_jmx_confdir.stat.exists and hadoop_jmx_enabled
  notify:
    - Restart mapreduce HA jobtracker
  tags: [ 'hadoop', 'jobtracker', 'jmx' ]

- name: Distribute the jmx role files for hadoop jobtracker
  copy: src=files/jmxremote.access dest=/etc/hadoop-jmx/conf/jmxremote.access owner=root mode=0644
  when: check_jmx_confdir.stat.exists and hadoop_jmx_enabled
  notify:
    - Restart mapreduce HA jobtracker
  tags: [ 'hadoop', 'jobtracker', 'jmx' ]