I have the same issue. I am running HP tools on the server which relies on SNMP and monitoring the server with solarwinds using snmp. I merge the hadoop snmpd.conf file with the HP snmp file, and all was working. the server was restarted and the snmpd.conf file returned to its prior state. This is problematic as we use HP tools and Solarwinds to monitor our environment.
How do I fix this?