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Special Forums UNIX and Linux Applications Infrastructure Monitoring SNMP responses failing under high system load Post 302570476 by Karunamon on Thursday 3rd of November 2011 11:39:33 AM
Old 11-03-2011
SNMP responses failing under high system load

Greetings,

I've got a Zenoss v2.5 server monitoring a large video encoding farm. Needless to say, these systems are under high bandwidth and CPU utilization the majority of the time.

What I'm running into is that, occasionally, these systems will fail to respond to a standard SNMP request, thereby throwing "SNMP agent down" errors in Zenoss, and generating lots of otherwise unnecessary alerts. Then, the next time the system is polled, it works, and a clear message is also sent (generating even more alerts).

Short of nice-ing the snmpd process down so that it doesn't get completely blocked by the video encoding, what would be the best way to handle this, either via configuring Zenoss, SNMP, or the servers themselves? I don't see an obvious solution to this puzzle.. Smilie
 

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snmpsetup(8n)															     snmpsetup(8n)

Name
       snmpsetup - set up the Simple Network Management Protocol (SNMP) Agent

Syntax
       /usr/etc/snmpsetup

Description
       The command is an interactive facility for configuring the ULTRIX SNMP Agent.  When your system is configured as an SNMP Agent certain net-
       work parameters can be monitored or managed by a Network Management Station (NMS).

       The command also allows you to configure Extended ULTRIX SNMP Agents.  Extended Agents are user-defined daemons that allow you  to  specify
       private network parameters to be monitored or managed by the NMS.

       Before  you  invoke  the network must be up and running, your host must have a name, and you must know the Internet Protocol address of any
       NMSs that you want to have monitor or manage your system.

       You can run while in multiuser mode, but you must be root or superuser.

       To invoke

       # snmpsetup

Diagnostics
       The following error messages are issued by

       snmpsetup must be run by root
       snmpsetup: need /etc/rc
       snmpsetup: need /etc/snmpd.conf
       snmpsetup: non-interactive mode not currently supported
       snmpsetup: network must be setup before running snmpsetup
       snmpsetup: terminated with no installations made

Files
       SNMP configuration file

       File that controls automatic reboot

See Also
       snmpext(3n), snmpd.conf(5n), snmpd(8n)
       Guide to Networking

																     snmpsetup(8n)
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