Currently we don't provide a MIB so users can choose to organize their structure in any way they want. Moving forward in Ambari's future, we may provide an Apache MIB. I believe thats what the ticket, that you referenced, was opened for (along with the patch, README and other inform necessary for the implementation) : https://issues.apache.org/jira/browse/AMBARI-1320.. Today, we use a single OID for all of Alerts, and the body of the trap looks like this: 2015-07-22 13:28:41 0.0.0.0(via UDP: [172.16.204.221]:41891->[172.16.204.221]) TRAP, SNMP v1, community public SNMPv2-SMI::zeroDotZero Cold Start Trap (0) Uptime: 0:00:00.00 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkUp IF-MIB::linkUp = STRING: " [Alert] NameNode Last Checkpoint [Service] HDFS [Component] NAMENODE [Host] revo2.hortonworks.local Last Checkpoint: [0 hours, 43 minutes, 44 transactions] " IF-MIB::linkUp = STRING: " [OK] NameNode Last Checkpoint Hope this helps! ... View more

@bsaini i think i figured out the issue...it is a bug when we upgrade ambari database from Mysql 5.1 to later...as of now only option is to upgrade ambari to 2.2 or rollback the changes. thanks for taking time in answering my question...appreciate it!!! https://na9.salesforce.com/articles/en_US/Issue/Ambari-log-reports-You-have-an-error-in-your-SQL-syntax-check-the-manual-that-corresponds-to-your-MySQL-server-version-for-the-right?popup=true ... View more

There is a group mapping provider called CompositeGroupsMapping, which is capable of combining the groups returned from multiple other group mapping providers. The user's effective group memberships are then the union of all groups returned from the underlying group mapping providers. You could potentially set up CompositeGroupsMapping to combine results from AD and the local user database. Unfortunately, I don't believe there is any step-by-step documentation available that discusses CompositeGroupsMapping. Instead, you'd need to review Apache JIRA HADOOP-8943 and the attached patch to see how it works. There are also comments in core-default.xml that show example usage. https://github.com/apache/hadoop/blob/release-2.7.1/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml#L100-L190 ... View more