Page tree
Skip to end of metadata
Go to start of metadata
If you try to run the SNMP Poller and see the following error after clicking add OID, check the apache error log:

Alert: Unexpected error initializing OID tree; check logs

If you see a message similar to the following in the apache logs, follow the step below:

[Mon Aug 06 20:49:10 2012] [error] [client] proxy: DNS lookup failure for: localhost.localdomain returned by /uptime/snmp/getMibTree, referer:

Check the apache http.conf file to see what is listed for the Proxy settings and compare those against the settings in the uptime.conf file.

Example http.conf:
ProxyPass /uptime http://localhost.localdomain:9996/uptime retry=0
ProxyPassReverse /uptime http://localhost.localdomain:9996/uptime
Example uptime.conf:

In this case, the localhost.localdomain was causing the issue.  By changing the setting to localhost, the error went away