Upgrading SmartSense
- Confirm that SmartSense and Ambari Metrics are stopped and in Maintenance Mode. - If SmartSense is not stopped, from Ambari Web, browse to Services > SmartSense and select Stop from the Service Actions menu. 
- If Ambari Metrics is not in Maintenance Mode, From Ambari Web, browse to Services > Ambari Metrics and select Turn On Maintenance Mode from the Service Actions menu. 
 
- Upgrade binaries on the HST server and all HST agents on every node in the cluster, assuming that the Ambari repository is configured on all nodes in the cluster: - yum clean all yum info smartsense-hst - In the - infooutput, visually validate that there is an available version containing "1.5.x”:- yum upgrade smartsense-hst 
- Upgrade Ambari service and Ambari view by running the hst upgrade-ambari-service command as the root user from the machine running the Ambari server. You can run the command in the interactive or non-interactive mode: - Interactive mode example: - # hst upgrade-ambari-service Please enter Ambari Server hostname (ambari-server.hortonworks.local): Please enter Ambari Server port (8080): Please enter Ambari admin user id (admin): Please enter password for admin: Un-installing old view ... Installing new view ... Removing deprecated alerts ... Updating SmartSense configurations in Ambari ... SmartSense service upgrade completed! NOTE: It is required to restart Ambari Server for changes to reflect. Please restart ambari using 'ambari-server restart' - Non-interactive mode example: - # hst upgrade-ambari-service -u admin -p 8080 -H ambari-server.hortonworks.local -P MySecurePassword123 Un-installing old view ... Installing new view ... Removing deprecated alerts ... Updating SmartSense configurations in Ambari ... SmartSense service upgrade completed! NOTE: It is required to restart Ambari Server for changes to reflect. Please restart ambari using 'ambari-server restart' 
- Restart the Ambari server: - # ambari-server restart 
- If you have HST Gateway installed, you need to also upgrade your HST Gateway: - If the HST Gateway is installed on the same node as HST Server or HST Agent, then the HST Gateway will get upgraded along with them. 
- If the HST Gateway is a standalone node outside of the cluster, perform upgrade steps described in Upgrading SmartSense Gateway. 
 
| ![[Important]](../common/images/admon/important.png) | Important | 
|---|---|
| It is very important to make sure you DO NOT START the SmartSense service. It will be started automatically during the HDP upgrade process. | 
Next Steps

