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 2. Stopping HDP services

Before trying any upgrades or uninstalling software, stop all the hadoop services in the following order::

  • Oozie

  • WebHCat

  • HiveServer2

  • Hive Metastore

  • ZooKeeper

  • HBase

  • YARN

  • HDFS

Instructions

  1. Stop Oozie. Execute these commands on the Oozie host machine.

    <login as $OOZIE_USER>
/usr/lib/oozie/bin/oozie-stop.sh

    where $OOZIE_USER is the Oozie user. For example, oozie.

  2. Stop WebHCat. On the WebHCat host machine, execute the following command:

    su -l hcat -c "/usr/lib/hcatalog/sbin/webhcat_server.sh stop"

  3. Stop Hive. Execute this command on the Hive Metastore and Hive Server2 host machine.

    ps aux | awk '{print $1,$2}' | grep hive | awk '{print $2}' | xargs kill >/dev/null 2>&1

  4. Stop ZooKeeper. Execute this command on the ZooKeeper host machine:

    su - zookeeper -c "export ZOOCFGDIR=/etc/zookeeper/conf ; export ZOOCFG=zoo.cfg ;source /etc/zookeeper/conf/zookeeper-env.sh ; /usr/lib/zookeeper/bin/zkServer.sh stop"

  5. Stop HBase

    1. Execute this command on all RegionServers: 

      su -l hbase -c "/usr/lib/hbase/bin/hbase-daemon.sh --config /etc/hbase/conf stop regionserver"

    2. Execute this command on the HBase Master host machine: 

      su -l hbase -c "/usr/lib/hbase/bin/hbase-daemon.sh --config /etc/hbase/conf stop master"

  6. Stop YARN

    1. Execute this command on all NodeManagers: 

      su -l yarn -c  "export HADOOP_LIBEXEC_DIR=/usr/lib/hadoop/libexec && /usr/lib/hadoop-yarn/sbin/yarn-daemon.sh --config /etc/hadoop/conf stop nodemanager"

    2. Execute this command on the History Server host machine: 

      su -l mapred -c "export HADOOP_LIBEXEC_DIR=/usr/lib/hadoop/libexec && /usr/lib/hadoop-mapreduce/sbin/mr-jobhistory-daemon.sh --config /etc/hadoop/conf stop historyserver"

    3. Execute this command on the ResourceManager host machine: 

      su -l yarn -c "export HADOOP_LIBEXEC_DIR=/usr/lib/hadoop/libexec && /usr/lib/hadoop-yarn/sbin/yarn-daemon.sh --config /etc/hadoop/conf stop resourcemanager"

  7. Stop HDFS

    1. Execute this command on all DataNodes: 

      su -l hdfs -c "/usr/lib/hadoop/sbin/hadoop-daemon.sh --config /etc/hadoop/conf stop datanode"

    2. Execute this command on the Secondary NameNode host machine: 

      su -l hdfs -c "/usr/lib/hadoop/sbin/hadoop-daemon.sh --config /etc/hadoop/conf stop secondarynamenode”

    3. Execute this command on the NameNode host machine: 

      su -l hdfs -c "/usr/lib/hadoop/sbin/hadoop-daemon.sh --config /etc/hadoop/conf stop namenode"

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