Upgrade instructions for tar based installations.
- While Dremio is still running, Create a backup of your Dremio cluster.
- If HDFS/MapR-FS is configured, perform a snapshot of your distributed store directories.
Performing an Upgrade
Perform the following on each node:
Shut down all Dremio executors (including any YARN provisioned nodes, if any).
Shut down Dremio coordinator nodes.
Rename and backup the installation of the old version (e.g.
Un-pack new version. See RPM and Tarball Install for more information.
Copy contents of previous configuration directory (e.g.
dremio_bak/conf) into configuration directory of the new installation, overwriting default files.
datafolder (contains Dremio metadata) and its contents from previous version (e.g.
dremio_bak/data) into the new installation directory.
On the master coordinator only: Execute the upgrade script as the user running Dremio:
Start Dremio on the master-coordinator first, coordinator nodes next, and then the executor nodes.
Perform a backup on the new version.