cacti stopped graphing

Hello,

i followed the guide on this site to setup a cacti monitoring,,

it worked great for some weeks, but than it stopped wokring.

All the graphs are empty for 2 weeks now.

We have 2 BigIP Servers, the active one seems not to response to any snmp requests.

We created a new VS and on the passive I see in the list where I can add new Graphs,

but not on the active one.

here is a snmp example:

       
        [root@monitoring-1:/var/www/cacti/log] snmpwalk -v 2c -c public 172.17.1.12 .1.3.6.1.4.1.3375.2.2.10.2.3.1.12.18.119.119.119.46.103.115.45.119.97.114.114.97.110.116.115.46.100.101        
        SNMPv2-SMI::enterprises.3375.2.2.10.2.3.1.12.18.119.119.119.46.103.115.45.119.97.114.114.97.110.116.115.46.100.101 = No Such Object available on this agent at this OID     
   

        
        [root@monitoring-1:/var/www/cacti/log] snmpwalk -v 2c -c public 172.17.1.11 .1.3.6.1.4.1.3375.2.2.10.2.3.1.12.18.119.119.119.46.103.115.45.119.97.114.114.97.110.116.115.46.100.101        
        SNMPv2-SMI::enterprises.3375.2.2.10.2.3.1.12.18.119.119.119.46.103.115.45.119.97.114.114.97.110.116.115.46.100.101 = Counter64: 0         
    

a simple snmpwalk withtout an OID brings a a couple of results.

this are the errors in the cacti logfile:

              
        06/13/2008 08:15:21 AM - CMDPHP: Poller[0] Host[9] DS[434] WARNING: Result from SNMP not valid.  Partial Result: No Such Object avail        
        06/13/2008 08:15:21 AM - CMDPHP: Poller[0] Host[9] DS[435] WARNING: Result from SNMP not valid.  Partial Result: No Such Object avail        
        06/13/2008 08:15:21 AM - CMDPHP: Poller[0] Host[9] DS[439] WARNING: Result from SNMP not valid.  Partial Result: No Such Object avail        
        06/13/2008 08:15:21 AM - CMDPHP: Poller[0] Host[9] DS[434] WARNING: Result from SNMP not valid.  Partial Result: No Such Object avail        
        06/13/2008 08:15:21 AM - CMDPHP: Poller[0] Host[9] DS[436] WARNING: Result from SNMP not valid.  Partial Result: No Such Object avail        
        06/13/2008 08:15:21 AM - CMDPHP: Poller[0] Host[9] DS[435] WARNING: Result from SNMP not valid.  Partial Result: No Such Object avail        
    

I created 2 news devices, one for each LB, in associated data queries, there is a difference between both LB:

        
 1) F5 BigIP - Interface Statistics   (Verbose Query)   Uptime Goes Backwards   Success 14 Items, 7 Rows    
 2) F5 BigIP - VS Statistics (Verbose Query) Uptime Goes Backwards Success 452 Items, 113 Rows    
 

                 
 1) F5 BigIP - Interface Statistics   (Verbose Query)   Uptime Goes Backwards   Success 14 Items, 7 Rows  
 2) F5 BigIP - VS Statistics (Verbose Query) Uptime Goes Backwards Success 0 Items, 0 Rows     
 

Strange thing is that it also does not talk to nagios, the passive one does.

I cant find any difference in the settings on both servers, we didnt change anything.

Can this be a load problem?

thx

Heiko