I set Cloudera Manager Authentication Backend Order External Only(without emergency Administrator access),but didn't set admin and saved.How can I log in Cloudera Manager Web UI...thx...
You can use the below article to reset the admin password
I hope this helps!
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I really appreciate for your kindness help.My problem is not how to reset the admin password.My problem is that I can't log in Cloudera WEBUI as administrator due to my wrong setting(Cloudera Manager Authentication Backend Order with no immediate administrator). But it reminded me that I could change the table config in cloudera database.I deleted the row and restart the sever.Finally I could logged in with the default username and password "admin".