ThingWorx Analytics Upgrade, Modify, Repair > For Linux > Upgrade Analytics Server from an Earlier Release
Upgrade Analytics Server from an Earlier Release
The Analytics Server installation includes an upgrade path from certain earlier versions of ThingWorx Analytics Server. When the current installer runs, it checks for any previous installation of the server, from release 8.3.x to the current release. If an earlier release is detected, you are prompted to upgrade. If the installer detects the current release already installed, you are prompted to reinstall. Reinstallation can be useful to modify or repair your existing server installation. For more information about reinstalling, see Repair or Modify an Existing Installation.
If you are upgrading from an 8.1.x release, you will need to upgrade to 8.3 or 8.4 first. Then you can upgrade to 8.5.1.
The upgrade process migrates all the data related to existing jobs and results. Log files are preserved. When the upgrade is complete, the installer will continue its deployment process. If the upgrade fails, the installer will roll back all changes. When an upgrade completes successfully, it cannot be rolled back to the previous version. So, be sure that you want to keep the upgrade before you opt to run it.
As an extra precaution, back up the data folder of your existing installation before you run the upgrade.
Notes for Upgrading ThingWorx Analytics Server
When you upgrade an installation, only configuration parameters you were prompted for during the original installation are persisted. Any custom configuration changes made to properties or service files are reset to their default values and must be manually reconfigured after the upgrade.
When you upgrade an earlier version of ThingWorx Analytics Server, the new version is installed in the old installation directory. The old directory will be preselected during installation and you will not be able to change it.
An upgrade to theThingWorx Analytics Serverwill likely require an upgrade to yourThingWorxserver as well. TheThingWorxserver must be upgraded before you run theAnalytics Serverinstaller.
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