Hi Prash,   By default CM will throw an alert on CM->HDFS ->status page when the namenode is in Safe Mode.    NameNode Safemode Health Test - Enables the health test that the NameNode is not in safemode https://docs.cloudera.com/documentation/enterprise/6/properties/6.1/topics/cm_props_cdh5150_hdfs.html You can configure email Alert, using the below  https://docs.cloudera.com/documentation/enterprise/latest/topics/cm_ag_email.html   Let me know if that helps.   Thanks Vipin ... View more