Hi all, I'm monitoring my boxes with Cacti through snmp.
One of my servers is a QuadCore with CentOS5.2 running net-snmp-5.3.1-24.el5_2.2. My Cacti always displayed 400% total usage- which is ok as it is a QuadCPU. I rebooted this server for some maintenance and now Cacti shows only between 210-217 as a sum. So it looks like two CPUs are missing. For troubleshooting I startetd snmpwalk on the box for the OIDs: [r...@zzz ~]# snmpwalk localhost -v2c -c XXXX .1.3.6.1.4.1.2021.11 [...] UCD-SNMP-MIB::ssCpuRawUser.0 = Counter32: 491379 UCD-SNMP-MIB::ssCpuRawNice.0 = Counter32: 376029 UCD-SNMP-MIB::ssCpuRawSystem.0 = Counter32: 3288720 UCD-SNMP-MIB::ssCpuRawIdle.0 = Counter32: 168447772 UCD-SNMP-MIB::ssCpuRawWait.0 = Counter32: 29883993 UCD-SNMP-MIB::ssCpuRawKernel.0 = Counter32: 0 UCD-SNMP-MIB::ssCpuRawInterrupt.0 = Counter32: 92663 UCD-SNMP-MIB::ssCpuRawSoftIRQ.0 = Counter32: 271130 And the same five minutes later. Then I calculated the differences in these counters and added them up, divided by 300 (for 5 minutes) and I got the ~210 value. Shouldn't this bee 400 now? Or am I missing an entry which matches the full values? Maanwhile I upgraded to net-snmp-5.4.x.svn200812050230-1.1 but the same results. Interestingly enough, the single CPU servers are reported fine with 100% each. So someone an idea? Greetings Christian ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Net-snmp-users mailing list Net-snmp-users@lists.sourceforge.net Please see the following page to unsubscribe or change other options: https://lists.sourceforge.net/lists/listinfo/net-snmp-users
