Updating a Looker Instance

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Looker strongly advises against using these instructions to roll back to an earlier version of Looker. This can cause serious problems that are tedious and difficult to recover from. Instead, we recommend you restore a backup if you need to go back to an earlier version.

You will be notified of new releases as they are available. We recommended updating Looker regularly in order to keep current with bug fixes and new features.

If you have a cluster of Looker instances you must update a single node completely before updating the other instances. Read this article for more information.

This update process assumes your Looker instance includes the startup script, which should have been installed as part of the initial Looker installation process.

  1. Download the most recent release of the Looker JAR
  2. Stop the Looker process from shell, as the looker user

    sudo su - looker
    cd /home/looker/looker
    ./looker stop
    
  3. Backup your entire Looker directory, including hidden directories (see Creating and Restoring Backups for more detail)

  4. If you have migrated Looker’s default in-memory database to an external MySQL database, backup that MySQL database
  5. Rename the JAR file to looker.jar and copy it to the server directory (i.e. /home/looker/looker/looker.jar)
  6. Start the Looker process from the shell as the looker user

    ./looker start
    
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