Cloudera Docs » 2.7.5.0 » Apache Ambari Minor Upgrade
Apache Ambari Minor Upgrade
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​Upgrade Ambari

  1. If you are running Ambari Metrics in your cluster, stop the service and put it in Maintenance Mode.

    From Ambari Web, browse to Services > Ambari Metrics and select Stop from the Service Actions menu.

  2. Stop the Ambari Server. On the host running Ambari Server:

    ambari-server stop

  3. Stop all Ambari Agents. On each host in your cluster running an Ambari Agent:

    ambari-agent stop

  4. Fetch the new Ambari repo and replace the old repository file with the new repository file on all hosts in your cluster.

    [Important]Important

    Check your current directory before you download the new repository file to make sure that there are no previous versions of the ambari.repo file. If you do not, and a previous version exists, the new download will be saved with a numeric extension, such as ambari.repo.1. Make sure that the version you copy is the new version.

    Select the repository appropriate for your environment from the following list:

    • For RHEL/CentOS/Oracle Linux 7:

      wget -nv https://username:password@archive.cloudera.com/p/ambari/centos7/2.x/updates/2.7.5.0/ambari.repo -O /etc/yum.repos.d/ambari.repo

    • For Amazon Linux 2:

      wget -nv https://username:password@archive.cloudera.com/p/ambari/amazonlinux2/2.x/updates/2.7.5.0/ambari.repo -O /etc/yum.repos.d/ambari.repo

    • For SLES 12:

      wget -nv https://username:password@archive.cloudera.com/p/ambari/sles12/2.x/updates/2.7.5.0/ambari.repo -O /etc/zypp/repos.d/ambari.repo

    • For Ubuntu 16:

      wget -nv https://username:password@archive.cloudera.com/p/ambari/ubuntu16/2.x/updates/2.7.5.0/ambari.list -O /etc/apt/sources.list.d/ambari.list

    • For Ubuntu 18:

      wget -nv https://username:password@archive.cloudera.com/p/ambari/ubuntu18/2.x/updates/2.7.5.0/ambari.list -O /etc/apt/sources.list.d/ambari.list

    • For Debian 9:

      wget -nv https://username:password@archive.cloudera.com/p/ambari/debian9/2.x/updates/2.7.5.0/ambari.list -O /etc/apt/sources.list.d/ambari.list

  5. Upgrade Ambari Server. On the host running Ambari Server:

    • For RHEL/CentOS/Oracle/Amazon Linux:

      yum clean all
      Before upgrading Ambari Server, you must update the username and password in the ambari.repo file. Run the following command: 

vi /etc/yum.repos.d/ambari.repo

For example, the output displays the following:

#VERSION_NUMBER=2.7.5.0-72
[ambari-2.7.5.0]
#json.url = http://public-repo-1.hortonworks.com/HDP/hdp_urlinfo.json
name=ambari Version - ambari-2.7.5.0
baseurl=https://username:password@archive.cloudera.com/p/ambari/centos7/2.x/updates/2.7.5.0
gpgcheck=1
gpgkey=https://username:password@archive.cloudera.com/p/ambari/centos7/2.x/updates/2.7.5.0/RPM-GPG-KEY/RPM-GPG-KEY-Jenkins
enabled=1
priority=1
      yum info ambari-server

      In the info output, visually validate that there is an available version containing "2.7"

      yum upgrade ambari-server

    • For SLES:

      zypper clean
      Before upgrading Ambari Server, you must set the username and password in the ambari.repo file. Run the following command: 

vi /etc/zypp/repos.d/ambari.repo

For example, the output displays the following:

[ambari-2.7.5.0]
name=ambari Version - ambari-2.7.5.0
enabled=1
autorefresh=0
username=<username>
password=<password>
baseurl=https://archive.cloudera.com/p/ambari/sles12/2.x/updates/2.7.5.0
type=rpm-md
priority=1
gpgcheck=0
gpgkey=https://archive.cloudera.com/p/ambari/sles12/2.x/updates/2.7.5.0/RPM-GPG-KEY/RPM-GPG-KEY-Jenkins
      zypper info ambari-server

      In the info output, visually validate that there is an available version containing "2.7"

      zypper up ambari-server

    • For Ubuntu/Debian:

      apt-get clean all
      Before upgrading Ambari Server, you must update the username and password in the ambari.list file. Run the following command: 

vi /etc/apt/sources.list.d/ambari.list

For example, the output displays the following:

#VERSION_NUMBER=2.7.5.0-72
#json.url = https://archive.cloudera.com/p/ambari/2.7.5.0-72/ubuntu16/HDP/hdpdev_urlinfo.json
deb https://username:password@archive.cloudera.com/p/ambari/2.7.5.0-72/ubuntu16 Ambari main
      apt-get update
      apt-cache show ambari-server | grep Version

      In the info output, visually validate that there is an available version containing "2.7"

      apt-get install ambari-server
    [Important]Important

    When performing upgrade on SLES, you will see a message "There is an update candidate for 'ambari-server', but it is from different vendor. Use 'zypper install ambari-server-2.7.5-139.noarch' to install this candidate". You will need to to use yast to update the package, as follows:

    1. From the command line run: > yast.

      > yast

      You will see command line UI for YaST program.

    2. Choose Software > Software Management, then click the Enter button.

    3. In the Search Phrase field, enter ambari-server, then click the Enter button.

    4. On the right side you will see the search result ambari-server 2.7.5. Click Actions, choose Update, then click the Enter button.

    5. Go to Accept, and click enter.

  6. Check for upgrade success by noting progress during the Ambari Server installation process you started in Step 8.

    • As the process runs, the console displays output similar, although not identical, to the following:

      Setting up Upgrade Process Resolving Dependencies --> Running transaction check

    • If the upgrade fails, the console displays output similar to the following:

      Setting up Upgrade Process No Packages marked for Update

    • A successful upgrade displays output similar to the following:

      Updated: ambari-server.noarch 0:2.7.5 Complete!

    [Important]Important

    Confirm there is only one ambari-server*.jar file in /usr/lib/ambari-server. If there is more than one JAR file with name ambari-server*.jar, move all JARs except ambari-server-2.7.5*.jar to /tmp before proceeding with upgrade.

  7. Upgrade all Ambari Agents. On each host in your cluster running an Ambari Agent:

    • For RHEL/CentOS/Oracle/Amazon Linux:

      Before upgrading Ambari Agent, you must update the username and password in the ambari.repo file. Run the following command: 

vi /etc/yum.repos.d/ambari.repo

For example, the output displays the following:

#VERSION_NUMBER=2.7.5.0-72
[ambari-2.7.5.0]
#json.url = http://public-repo-1.hortonworks.com/HDP/hdp_urlinfo.json
name=ambari Version - ambari-2.7.5.0
baseurl=https://username:password@archive.cloudera.com/p/ambari/centos7/2.x/updates/2.7.5.0
gpgcheck=1
gpgkey=https://username:password@archive.cloudera.com/p/ambari/centos7/2.x/updates/2.7.5.0/RPM-GPG-KEY/RPM-GPG-KEY-Jenkins
enabled=1
priority=1
      yum upgrade ambari-agent

    • For SLES:

      Before upgrading Ambari Agent, you must update the username and password in the ambari.repo file. Run the following command: 

vi /etc/zypp/repos.d/ambari.repo

For example, the output displays the following:

[ambari-2.7.5.0]
name=ambari Version - ambari-2.7.5.0
enabled=1
autorefresh=0
baseurl=https://username:password@archive.cloudera.com/p/ambari/sles12/2.x/updates/2.7.5.0
type=rpm-md
priority=1
gpgcheck=0
gpgkey=https://username:password@archive.cloudera.com/p/ambari/sles12/2.x/updates/2.7.5.0/RPM-GPG-KEY/RPM-GPG-KEY-Jenkins
      zypper up ambari-agent
      [Note]Note

      Ignore the warning that begins with "There are some running programs that use files deleted by recent upgrade".

      [Important]Important

      When performing upgrade on SLES, you will see a message "There is an update candidate for 'ambari-agent', but it is from different vendor. Use 'zypper install ambari-agent-2.7.5-139.noarch' to install this candidate". You will need to to use yast to update the package, as follows:

      1. From the command line run: > yast

        > yast

        You will see command line UI for YaST program.

      2. Choose Software > Software Management, then click the Enter button.

      3. In the Search Phrase field, enter ambari-agent, then click the Enter button.

      4. On the right side you will see the search result ambari-agent 2.7.5. Click Actions, choose Update, then click the Enter button.

      5. Go to Accept, and click enter.

    • For Ubuntu/Debian:

      Before upgrading Ambari Agent, you must update the username and password in the ambari.list file. Run the following command: 

vi /etc/apt/sources.list.d/ambari.list

For example, the output displays the following:

#VERSION_NUMBER=2.7.5.0-72
#json.url = https://archive.cloudera.com/p/ambari/2.7.5.0-72//ubuntu16/HDP/hdpdev_urlinfo.json
deb https://username:password@archive.cloudera.com/p/ambari/2.7.5.0-72/ubuntu16 Ambari main
      apt-get update
apt-get install ambari-agent

  8. After the upgrade process completes, check each host to make sure the new files have been installed:

    For RHEL/CentOS/Oracle Linux 7, Amazon Linux 2:
    rpm -qa | grep ambari-agent
    For SLES 12:
    rpm -qa | grep ambari-agent
    For Ubuntu 16:
    dpkg -l ambari-agent
    For Ubuntu 18:
    dpkg -l ambari-agent
    For Debian 9:
    dpkg -l ambari-agent

  9. Upgrade Ambari Server database schema. On the host running Ambari Server:

    ambari-server upgrade

    When the Ambari Server database schema has been upgraded, you should see command output like this:

    Ambari Server ‘upgrade’ completed successfully

  10. Start the Ambari Server. On the host running Ambari Server:

    ambari-server start

  11. Start all Ambari Agents. On each host in your cluster running an Ambari Agent:

    ambari-agent start

  12. Open Ambari Web.

    Point your browser to the Ambari Web UI:

    • When Ambari Server is configured for HTTPS:

      https://<your.ambari.server>:8443

    • When Ambari Server is configured for HTTP:

      http://<your.ambari.server>:8080

    where <your.ambari.server> is the name of your ambari server host. For example, c7401.ambari.apache.org.

    [Important]Important

    Refresh your browser so that it loads the new version of the Ambari Web code. If you have problems, clear your browser cache manually, then restart Ambari Server.

  13. Log in, using the Ambari administrator credentials that you have set up.

    For example, the default name/password is admin/admin.

    You will see a Restart indicator next to each service after upgrading. Ambari upgrade has added to/adjusted the configuration properties of your cluster based on new configuration types and properties being made available for each service with this release of Ambari. Review these changes by comparing the previous configuration with the latest version created by "ambari-upgrade".

    [Important]Important

    DO NOT RESTART these services unless future steps in the upgrade guide prompt you to do so. Manually restarting these services may significantly disrupt your upgrade. Ambari will restart each service automatically during the HDP upgrade.

    [Note]Note

    Even though the installer prompts you to sync ldap, doing so is not required.

Next Steps

Upgrading HDP

More Information

Configuring Ambari Authentication for LDAP/AD

Using a new or existing database with Hive

Using an existing database with Oozie

Configuring a Database Instance for Ranger

​Install Databases for HDF services

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