ansible/roles/hadoop/templates/yarn-site.xml

<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
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    Licensed to the Apache Software Foundation (ASF) under one or more
    contributor license agreements.  See the NOTICE file distributed with
    this work for additional information regarding copyright ownership.
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    (the "License"); you may not use this file except in compliance with
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       http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.

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<!-- Put site-specific property overrides in this file. -->

<configuration>
  <property>
    <name>yarn.nodemanager.local-dirs</name>
    <value>{% for dir in worker_data_dirs -%}
              {{ dir }}/hadoop/yarn/local
              {%- if not loop.last -%} , {%- endif -%}
           {%- endfor %}</value>
  </property>
  <property>
    <name>yarn.nodemanager.log-dirs</name>
    <value>{{ worker_data_dirs[0] }}/hadoop/yarn/logs</value>
  </property>
  {% if 'spark' in groups %}
  <property>
    <name>yarn.nodemanager.aux-services</name>
    <value>mapreduce_shuffle,spark_shuffle</value>
  </property>
  <property>
    <name>yarn.nodemanager.aux-services.spark_shuffle.class</name>
    <value>org.apache.spark.network.yarn.YarnShuffleService</value>
  </property>
  {% else %}
  <property>
    <name>yarn.nodemanager.aux-services</name>
    <value>mapreduce_shuffle</value>
  </property>
  {% endif %}
  <property>
    <name>yarn.nodemanager.resource.memory-mb</name>
    <value>{{ yarn_nm_mem_mb }}</value>
  </property>
  <property>
    <name>yarn.scheduler.minimum-allocation-mb</name>
    <value>128</value>
  </property>
  <property>
    <name>yarn.nodemanager.vmem-check-enabled</name>
    <value>false</value>
  </property>
  <property>
    <name>yarn.nodemanager.vmem-pmem-ratio</name>
    <value>3.1</value>
  </property>
  <property>
    <name>yarn.nodemanager.delete.debug-delay-sec</name>
    <value>259200</value>
  </property>
  <property>
    <name>yarn.resourcemanager.scheduler.class</name>
    <value>org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler</value>
  </property>
  <property>
    <name>twill.java.reserved.memory.mb</name>
    <value>{{ twill_reserve_mem_mb }}</value>
  </property>
  {% if cluster_type == 'azure' and use_adlsg2 %}
  <property>
    <name>yarn.application.classpath</name>
    <value>${HADOOP_HOME}/share/hadoop/tools/lib/*,${HADOOP_HOME}/share/hadoop/hdfs/lib/*,${HADOOP_HOME}/share/hadoop/common/lib/*,${HADOOP_HOME}/share/hadoop/yarn/*,${HADOOP_HOME}/share/hadoop/yarn/lib/*,${HADOOP_HOME}/share/hadoop/hdfs/*,${HADOOP_HOME}/share/hadoop/common/*,${HADOOP_HOME}/share/hadoop/mapreduce/*,${HADOOP_HOME}/share/hadoop/mapreduce/lib/*,${HADOOP_HOME}/share/hadoop/client/*</value>
  </property>
  {% endif %}
  <property>
    <name>yarn.log.server.url</name>
    <value>http://{{ groups['resourcemanager'][0] }}:19888/jobhistory/logs</value>
  </property>
  <property>
    <name>yarn.log-aggregation-enable</name>
    <value>true</value>
  </property>
  <property>
    <name>yarn.log-aggregation.retain-seconds</name>
    <value>2592000</value>
  </property>
  <property>
    <name>yarn.log.server.web-service.url</name>
    <value>http://{{ groups['resourcemanager'][0] }}:8188/ws/v1/applicationhistory</value>
  </property>
  <property>
    <name>yarn.nodemanager.log-aggregation.compression-type</name>
    <value>gz</value>
  </property>
  <property>
    <name>yarn.nodemanager.log-aggregation.debug-enabled</name>
    <value>false</value>
  </property>
  <property>
    <name>yarn.nodemanager.log-aggregation.num-log-files-per-app</name>
    <value>30</value>
  </property>
  <property>
    <name>yarn.nodemanager.log-aggregation.roll-monitoring-interval-seconds</name>
    <value>3600</value>
  </property>
  <property>
    <name>yarn.nodemanager.log.retain-seconds</name>
    <value>604800</value>
  </property>
  <property>
    <name>yarn.nodemanager.remote-app-log-dir</name>
    <value>/app-logs</value>
  </property>
  <property>
    <name>yarn.nodemanager.remote-app-log-dir-suffix</name>
    <value>logs</value>
  </property>

{% if hdfs_ha %}
<!-- RM HA Configurations -->

  <property>
    <name>yarn.resourcemanager.ha.enabled</name>
    <value>true</value>
  </property>

  <property>
    <name>yarn.resourcemanager.cluster-id</name>
    <value>yarn-cluster</value>
  </property>

{% set rm_list = [] %}
{% for item in groups['resourcemanager'] %}{{ rm_list.append('rm' + loop.index|string() ) }}{% endfor %}
  <property>
    <name>yarn.resourcemanager.ha.rm-ids</name>
    <value>{{ rm_list | join(',') }}</value>
  </property>

{% for rm_host in groups['resourcemanager'] %}{% set rm_id = 'rm' + loop.index|string() %}
  <property>
    <name>yarn.resourcemanager.hostname.{{ rm_id }}</name>
    <value>{{ rm_host }}</value>
  </property>

  <property>
    <name>yarn.resourcemanager.webapp.address.{{ rm_id }}</name>
    <value>{{ rm_host }}:8088</value>
  </property>

  <property>
    <name>yarn.resourcemanager.webapp.https.address.{{ rm_id }}</name>
    <value>{{ rm_host }}:8090</value>
  </property>
{% endfor %}

{% if hadoop_major_version == '2' %}
  <property>
    <name>yarn.resourcemanager.zk-address</name>
    <value>{{ zookeeper_connect }}</value>
  </property>
{% elif hadoop_major_version == '3' %}
  <property>
    <name>hadoop.zk.address</name>
    <value>{{ zookeeper_connect }}</value>
  </property>
{% endif %}

<!-- Below properties required for work-preserving RM restarts -->

  <property>
    <name>yarn.resourcemanager.recovery.enabled</name>
    <value>true</value>
  </property>

  <property>
    <name>yarn.resourcemanager.zk-state-store.parent-path</name>
    <value>/rmstore</value>
  </property>

  <property>
    <name>yarn.resourcemanager.store.class</name>
    <value>org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore</value>
  </property>

  <property>
    <name>yarn.resourcemanager.work-preserving-recovery.enabled</name>
    <value>true</value>
  </property>

  <property>
    <name>yarn.resourcemanager.work-preserving-recovery.scheduling-wait-ms</name>
    <value>10000</value>
  </property>

  <property>
    <name>yarn.resourcemanager.zk-num-retries</name>
    <value>1000</value>
  </property>

  <property>
    <name>yarn.resourcemanager.zk-retry-interval-ms</name>
    <value>1000</value>
  </property>

  <property>
    <name>yarn.client.failover-proxy-provider</name>
    <value>org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider</value>
  </property>

  <property>
    <name>yarn.resourcemanager.ha.automatic-failover.zk-base-path</name>
    <value>/yarn-leader-election</value>
  </property>

{% else %}

  <property>
    <name>yarn.resourcemanager.webapp.address</name>
    <value>{{ groups['resourcemanager'][0] }}:8088</value>
  </property>

  <property>
    <name>yarn.resourcemanager.hostname</name>
    <value>{{ groups['resourcemanager'][0] }}</value>
  </property>
{% endif %}

</configuration>