@Radha Krishna Srimanthula From your ambari server log we see that some time back you got postgresql related errors, Bit on the recent logs those errors are gone. Can you please check the following: 1. From the machine where you are trying to login to ambari UI are you able to access the ambari port 8080 as following? If not then check if the "iptables" (firewall) is disabled on ambari server to allow port 8080 access. # telnet $AMBARI_HOSTNAME $AMBARI_UI_PORT
# telnet ambari.example.com 8080
#### Try accessing ambari using API call to see if it works (to validate access)
# curl -iv -u admin:admin -H "X-Requested-By: ambari" -X GET http://$AMBARI_HOSTNAME:8080/api/v1/clusters . 2. Have you recently changed ambari password? Or is it using some LDAP credentials? 3. Please try to reset ambari admin password to password as "admin" for the username "admin" by running the following query in the Ambari Database:
# psql -U ambari ambari
Password for user ambari: bigdata
psql (9.2.18)
Type "help" for help.
ambari=> update ambari.users set user_password='538916f8943ec225d97a9a86a2c6ec0818c1cd400e09e03b660fdaaec4af29ddbb6f2b1033b81b00' where user_name='admin'; Then restart ambari server and then try to login as username : "admin" and password : "admin" .
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