Chapter 4. Upgrading Red Hat Gluster Storage Web Administration

On Gluster storage nodes

1. Stop and disable all Web Administration services on storage nodes.
2. Enable the Ansible repository and ensure the other required repositories are enabled.
3. Upgrade Red Hat Gluster Storage to version 3.5.

On Web Administration Server

1. Upgrade Red Hat Enterprise Linux on the Web Administration Server.
2. Import the Gluster 3.5 cluster.

On Web Administration server

1. Stop all Web Administration services:

   1. To stop the tendrl-monitoring-integration service:

      # systemctl stop tendrl-monitoring-integration

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   2. To stop the tendrl-node-agent service:

      # systemctl stop tendrl-node-agent

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   3. To stop the tendrl-notifier service:

      # systemctl stop tendrl-notifier

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   4. To stop the tendrl-api service:

      # systemctl stop tendrl-api

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   5. To stop the etcd service:

      # systemctl stop etcd

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   6. To stop the carbon-cache service:

      # systemctl stop carbon-cache

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2. Update all packages on the Web Administration server:

   # yum update

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3. Run the tendrl-upgrade script:

   # tendrl-upgrade

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4. Run the tendrl-ansible playbooks with the same initial installation configuration. For instructions, see section Web Administration Installation, steps 2 to 9.

5. If updates to the kernel package occurred, reboot the server system. If not, restart the Web Administration services:

   # systemctl restart httpd
   # systemctl restart etcd
   # systemctl restart carbon-cache
   # systemctl restart tendrl-node-agent
   # systemctl restart tendrl-monitoring-integration
   # systemctl restart tendrl-notifier
   # systemctl restart tendrl-api

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