ambari-server/src/test/resources/stacks/HDP/2.2.0/upgrades/upgrade_test_checks.xml

<?xml version="1.0"?>
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<upgrade xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="upgrade-pack.xsd">
  <target>2.2.*.*</target>
  <target-stack>HDP-2.2.1</target-stack>
  <type>ROLLING</type>
  <prerequisite-checks>
    <check>org.apache.ambari.server.checks.HiveMultipleMetastoreCheck</check>
    <check>org.apache.ambari.server.checks.MapReduce2JobHistoryStatePreservingCheck</check>
    <check>org.apache.ambari.server.checks.SecondaryNamenodeDeletedCheck</check>
    <check>org.apache.ambari.server.checks.ServicesMapReduceDistributedCacheCheck</check>
    <check>org.apache.ambari.server.checks.ServicesNamenodeHighAvailabilityCheck</check>
    <check>org.apache.ambari.server.checks.ServicesNamenodeTruncateCheck</check>
    <check>org.apache.ambari.server.checks.ServicesTezDistributedCacheCheck</check>
    <check>org.apache.ambari.server.checks.ServicesYarnWorkPreservingCheck</check>
    <check>org.apache.ambari.server.checks.YarnRMHighAvailabilityCheck</check>
    <check>org.apache.ambari.server.checks.YarnTimelineServerStatePreservingCheck</check>

    <configuration>
      <property name="global-property-1">global-value-1</property>
      <check-properties name="org.apache.ambari.server.checks.ServicesMapReduceDistributedCacheCheck">
        <property name="dfs-protocols-regex">^([^:]*dfs|wasb|ecs):.*</property>
      </check-properties>
      <check-properties name="org.apache.ambari.server.checks.ServicesTezDistributedCacheCheck">
        <property name="dfs-protocols-regex">^([^:]*dfs|wasb|ecs):.*</property>
      </check-properties>
    </configuration>
  </prerequisite-checks>

  <order>
    <group xsi:type="cluster" name="PRE_CLUSTER" title="Pre Upgrade">
      <execute-stage title="Confirm 1">
        <task xsi:type="manual">
          <message>Foo</message>
        </task>
      </execute-stage>
      <execute-stage service="HDFS" component="NAMENODE" title="Finalize HDFS">
        <task xsi:type="execute">
          <script>foo</script>
          <function>list</function>
        </task>
      </execute-stage>
      <execute-stage title="Confirm 2">
        <task xsi:type="manual">
          <message>Foo</message>
        </task>
      </execute-stage>
    </group>
  
    <group name="ZOOKEEPER" title="Zookeeper">
      <service name="ZOOKEEPER">
        <component>ZOOKEEPER_SERVER</component>
        <component>ZOOKEEPER_CLIENT</component>
      </service>
    </group>
    <group name="CORE_MASTER" title="Core Masters">
      <service name="HDFS">
        <component>JOURNALNODE</component>
        <component>NAMENODE</component>
      </service>
      <service name="YARN">
        <component>RESOURCEMANAGER</component>
      </service>
      <service-check>false</service-check>
    </group>

    <group xsi:type="cluster" name="HBASE" title="Update HBase Configuration">
      <skippable>true</skippable>
      <execute-stage service="HBASE" component="HBASE_MASTER" title="Update HBase Configuration">
        <task xsi:type="server_action" class="org.apache.ambari.server.serveraction.upgrades.HBaseEnvMaxDirectMemorySizeAction">
          <summary>Update HBase Env Configuration</summary>
        </task>
      </execute-stage>
    </group>

    <group name="SERVICE_CHECK_1" title="Post-Master Service Checks" xsi:type="service-check">
      <priority>
        <service>HDFS</service>
        <service>YARN</service>
      </priority>
      <exclude>
        <service>AMBARI_METRICS</service>
        <service>LOGSEARCH</service>
      </exclude>
    </group>
    
    <group name="CORE_SLAVES" title="Core Slaves" xsi:type="colocated">
      <skippable>true</skippable>      <!-- set skippable for test -->
      <allow-retry>false</allow-retry> <!-- set no retry for test -->
      <service name="HDFS">
        <component>DATANODE</component>
      </service>
      <service name="HBASE">
        <component>REGIONSERVER</component>
      </service>
      <service name="YARN">
        <component>NODEMANAGER</component>
      </service>
      
      <batch>
        <percent>20</percent>
        <message>Please run additional tests</message>
      </batch>
    </group>

    <!-- This group will be ignored because it is an invalid syntax. It is not a cluster type but contains an execute-stage -->
    <group name="HBASE" title="Update HBase Configuration">
      <skippable>true</skippable>
      <execute-stage service="HBASE" component="HBASE_MASTER" title="Update HBase Configuration">
        <task xsi:type="server_action" class="org.apache.ambari.server.serveraction.upgrades.HBaseEnvMaxDirectMemorySizeAction">
          <summary>Update HBase Env Configuration</summary>
        </task>
      </execute-stage>
    </group>
    
    <group name="SERVICE_CHECK_2" title="Post-Slave Service Checks" xsi:type="service-check">
      <priority>
        <service>HDFS</service>
        <service>YARN</service>
      </priority>
      <exclude>
        <service>AMBARI_METRICSS</service>
      </exclude>
    </group>
    
    
    <group xsi:type="cluster" name="POST_CLUSTER" title="Finalize Upgrade">
      <execute-stage title="Confirm Finalize">
        <task xsi:type="manual">
          <message>Please confirm you are ready to finalize</message>
        </task>
      </execute-stage>
      <execute-stage service="HDFS" component="NAMENODE" title="Execute HDFS Finalize">
        <task xsi:type="execute">
          <script>foo</script>
          <function>list</function>
        </task>
      </execute-stage>
      <execute-stage title="Save Cluster State">
        <task xsi:type="server_action" class="org.apache.ambari.server.serveraction.upgrades.FinalizeUpgradeAction">
        </task>
      </execute-stage>
    </group>
        
  </order>
  

  <processing>
  
    <service name="ZOOKEEPER">
      <component name="ZOOKEEPER_SERVER">
        <pre-upgrade>
          <task xsi:type="manual">
            <summary>SUMMARY OF PREPARE</summary>
            <message>This is a manual task with a placeholder of {{foo/bar}}</message>
          </task>
        </pre-upgrade>
        <pre-downgrade copy-upgrade="true" />
        <upgrade>
          <task xsi:type="restart-task" />
        </upgrade>
        <post-upgrade>
          <task xsi:type="configure" id="hdp_2_2_0_zk_post_upgrade"/>
        </post-upgrade>
        <post-downgrade copy-upgrade="true" />
      </component>
    </service>
    <service name="HDFS">
      <component name="NAMENODE">
        <pre-upgrade>
          <task xsi:type="execute" hosts="master">
            <script>foo</script>
            <function>list</function>
          </task>
          <task xsi:type="configure" id="hdp_2_2_0_nn_pre_upgrade"/>
          <task xsi:type="manual">
            <message>Update your database</message>
          </task>
        </pre-upgrade>
        <pre-downgrade copy-upgrade="true" />
        <upgrade>
          <task xsi:type="restart-task" />
        </upgrade>
        <post-upgrade>
          <task xsi:type="execute">
            <script>foo</script>
            <function>list</function>
          </task>
        </post-upgrade>
        <post-downgrade copy-upgrade="true" />
      </component>
      <component name="DATANODE">
        <pre-downgrade />
        <upgrade>
          <task xsi:type="restart-task" />
        </upgrade>
        <post-downgrade>
          <task xsi:type="manual">
            <message>Manual Downgrade</message>
          </task>
        </post-downgrade>
      </component>
    </service>
    <service name="YARN">
      <component name="RESOURCEMANAGER">
        <pre-upgrade>
          <task xsi:type="execute">
            <script>foo</script>
            <function>list</function>
          </task>
        </pre-upgrade>
        <pre-downgrade copy-upgrade="true" />
        <upgrade />
      </component>
      <component name="NODEMANAGER">
        <pre-upgrade>
          <task xsi:type="execute">
            <script>foo</script>
            <function>list</function>
          </task>
        </pre-upgrade>
        <pre-downgrade copy-upgrade="true" />
        <upgrade />
      </component>
    </service>
  </processing>
</upgrade>