Cloudera Manager also has a great way to set class level debug  on the fly without restart when needed to troubleshoot.  The way to do this is to navigate to: http://<cm-server>:7180/cmf/debug/logLevel Once at this page, chose the class you wish to change, choose the radio button for the level that you wish to change it to, and hit the submit button.  Understand that these changes will NOT persist a restart of the server but will start logging at the new level as soon as you hit the submit button on the logLevel page. ... View more

The JDK 8 HotSpot JVM is now using native memory for the representation of class metadata and is called Metaspace. The permanent generation has been removed. The PermSize and MaxPermSize are ignored and a warning is issued if they are present on the command line. ... View more

All, This is actually a BUG, as ambari removes the falcon service but not the hooks in Oozie configs. The proper way to fix this and not have it hit you each time you upgrade is to remove the below listed values from your oozie configs. I have also opened an internal (to Hortonworks) JIRA to have this fixed in future versions of Ambari. oozie.service.ProxyUserService.proxyuser.falcon.hosts oozie.service.ProxyUserService.proxyuser.falcon.groups oozie.service.URIHandlerService.uri.handlers oozie.services.ext oozie.service.ELService.ext.functions.coord-job-submit-instances oozie.service.ELService.ext.functions.coord-action-create-inst oozie.service.ELService.ext.functions.coord-action-create oozie.service.ELService.ext.functions.coord-job-submit-data oozie.service.ELService.ext.functions.coord-action-start oozie.service.ELService.ext.functions.coord-sla-submit oozie.service.ELService.ext.functions.coord-sla-create ... View more

I can confirm for you that the deletes look correct. I normally do not do the alters, but I don't see them causing an issue. Remember to STOP ambari-server before editing. Take a good backup of the db. Then when done, start ambari-server. ... View more

@Arun A K I just use the Web Gui that comes with IPA ldap. Keep in mind I am not managing a large user base, but rather just doing small recreations to help customers. I would think the GUI would get cumbersome if you were doing an entire enterprise. ... View more

@Arun A K, first let's fix your admin. Simply go into the database and do: update users set ldap_user = 0 where user_name = 'admin'; then reset the password as follows: https://community.hortonworks.com/questions/449/how-to-reset-ambari-admin-password.html Here is the output of an ldapsearch on a user in my IPA, to show you where dn is: # orlando, users, accounts, ipa.example.com dn: uid=orlando,cn=users,cn=accounts,dc=ipa,dc=example,dc=com displayName: Orlando Teixeira cn: Orlando Teixeira objectClass: top objectClass: person objectClass: organizationalperson objectClass: inetorgperson objectClass: inetuser objectClass: posixaccount objectClass: krbprincipalaux objectClass: krbticketpolicyaux objectClass: ipaobject objectClass: ipasshuser objectClass: ipaSshGroupOfPubKeys objectClass: mepOriginEntry loginShell: /bin/sh sn: Teixeira gecos: Orlando Teixeira homeDirectory: /home/orlando krbPwdPolicyReference: cn=global_policy,cn=IPA.EXAMPLE.COM,cn=kerberos,dc=ipa, dc=example,dc=com mail: orlando@ipa.example.com krbPrincipalName: orlando@IPA.EXAMPLE.COM givenName: Orlando uid: orlando initials: OT ipaUniqueID: 3b9308de-895c-11e5-a188-0800274e577d uidNumber: 1690200001 gidNumber: 1690200001 memberOf: cn=ipausers,cn=groups,cn=accounts,dc=ipa,dc=example,dc=com memberOf: cn=test,cn=groups,cn=accounts,dc=ipa,dc=example,dc=com memberOf: cn=test2,cn=groups,cn=accounts,dc=ipa,dc=example,dc=com mepManagedEntry: cn=orlando,cn=groups,cn=accounts,dc=ipa,dc=example,dc=com krbLoginFailedCount: 6 krbLastFailedAuth: 20160601185034Z # orlando, groups, accounts, ipa.example.com dn: cn=orlando,cn=groups,cn=accounts,dc=ipa,dc=example,dc=com objectClass: posixgroup objectClass: ipaobject objectClass: mepManagedEntry objectClass: top cn: orlando gidNumber: 1690200001 description: User private group for orlando mepManagedBy: uid=orlando,cn=users,cn=accounts,dc=ipa,dc=example,dc=com ipaUniqueID: 3b9b8388-895c-11e5-a188-0800274e577d ... View more

In the ambari DB you would do: update host_role_command set status = 'COMPLETED' where request_id = 1; Also, instead of the other options you took, you could have set 17,829 to completed with almost the same command: update host_role_command set status = 'COMPLETED' where task_id = 17829; ... View more