Complete the following steps before you upgrade Object Store with S3-Compatible API.
Stop the Object Store with S3-Compatible API services on all nodes before you upgrade.
sudo /opt/mapr/objectstore-client/objectstore-client-<version>/bin/objectstore.sh stopsudo /opt/mapr/bin/maprcli node services -name objectstore -nodes <node_name> -action stopFor next steps, see Upgrading the Object Store with S3-Compatible API.