Hi @Jack Madden , Sorry for the delay in response. I was analyzing deep in code why is this happening and it seems like its a BUG in javascript that it shows service is decommissioning stage when the HBASE region server is already started stage. This looks like a javascript bug to me, we can easily workaround this by fixing in app.js Go through this below steps and let me know if it worked for you Steps 1) go to ambari-server and navigate to below folder and take a app.js backup [root@asn1 ~]# cd /usr/lib/ambari-server/web/javascripts/ [root@asn1 javascripts]# ls -lh total 29M -rw-r--r--. 1 root root 8.6M Dec 17 09:33 app.js -rw-r--r--. 1 root root 2.5M Dec 7 18:32 vendor.js [root@asn1 javascripts]# cp app.js app.js_backup_original 2) edit the app.js file [root@asn1 javascripts]# vi app.js findout the line : this.setStatusAs('RS_DECOMMISSIONED'); and comment it //this.setStatusAs('RS_DECOMMISSIONED'); 3) save the file and Hard reload the ambari-web browser(open in incognito tab to remove the possbility of cached app.js) Please share the feedback if it worked or not. Please login and accept the answer if it did Note : The following changes are based on my inspection and analysis. this BUG is not yet fixed in ambari, you can revert back the app.js after the change incases you wish for valid fix. i will raise apache bug for this and fix later. ... View more

Hi @Ye Jun, the template hbs files will be bundled to app.js while the web code is build and will be located on /usr/lib/ambari-server/web/javascripts folder . If you want to edit the ambari-web template hbs file, you might need to download the code from apache ambari, and build the app.js referring to : https://cwiki.apache.org/confluence/display/AMBARI/Ambari+Development for corresponding ambari branch and then deploy the builded app.js in abouve folder. Please see if this helps. Please accept this answer if it did. ... View more