@Jalender,
Activity explorer password is not stored in plain text format. You can login to the node where Activity explorer is installed. Open the file ( /etc/smartsense-activity/conf/shiro.ini ) and find the password
[users]
admin = admin ---------> password
[main]
sessionManager = org.apache.shiro.web.session.mgt.DefaultWebSessionManager
securityManager.sessionManager = $sessionManager
securityManager.sessionManager.globalSessionTimeout = 86400000
shiro.loginUrl = /api/login
[urls]
/api/version = anon
/** = authc
If you want to change the password, Go to Ambari -> SmartSense -> Configs -> Activity Analysis -> Password.
Change the password and restart the services
Thanks,
Aditya