I have a squid monitoring configuration, which I recently ported from one server that uses mrtg-2.11.1 onto a server running mrtg-2.16.1.
On 2.11.1 I had no problems at all with this config, using the same daemon_mode.cfg and everything. I brought over my MRTG config, copied my squid mibfile, etc onto the new server. My switch configs are different in that I regenerated them using snmp v2 commands, due to the overflows.. however, even prior to that the squid config wasn't working on the new box. What's strange is, mrtg-2.116.1 appears to parse some of the variables out of my squid mibfile when operated in daemon mode, but parses other variables out of the same mibfile just fine. If I run the config manually, i.e.: env LANG=C /usr/bin/mrtg --logging /var/log/mrtg.log squid_server.cfg All works fine. If I load it with my daemon mode config, it starts to break. My init script sets LANG=C near the top of the file, and passes mrtg: the following parameters: /etc/mrtg/daemon_mode.cfg --logging /var/log/mrtg.log My daemon_mode.cfg looks like this (actual server names removed): RunAsDaemon: Yes Interval: 5 EnableIPv6: no Include: /etc/mrtg/router.cfg Include: /etc/mrtg/switch1.cfg Include: /etc/mrtg/switch2.cfg Include: /etc/mrtg/ciscoswitch_cpu.cfg Include: /etc/mrtg/server1.cfg Include: /etc/mrtg/squid_server.cfg Include: /etc/mrtg/ups.cfg ... Each config file has its own LoadMIBs, when needed. This particular server is the 3rd in the config that uses LoadMIBs, and it's the only one that loads the squid mib. None of my other configs have trouble loading mib files that others aren't using. (ie: my ups config, which comes later in daemon_mode.cfg) In daemon mode this target works: Target[squid_server-reqhitratios]: cacheRequestHitRatio.5&cacheRequestHitRatio.60:[EMAIL PROTECTED]:3401 It graphs perfectly fine, with no errors. In daemon mode this target causes an error: Target[squid_server-hit]: cacheHttpHits&cacheServerRequests:[EMAIL PROTECTED]:3401 In my mrtg.log I get: 2008-03-26 15:01:15 -- Unknown SNMP var cacheServerRequests at /usr/bin/mrtg line 2199 However, cacheServerRequests is declared in the same mibfile as cacheRequestHitRatio. My loadmib for squid_server.cfg looks like: LoadMIBs: /usr/share/snmp/mibs/SQUID-MIB.txt, /usr/share/snmp/mibs/UCD-SNMP-MIB.txt And I can verify that variable in that same mibfile works properly with snmpget: # snmpget -m /usr/share/snmp/mibs/SQUID-MIB.txt -v1 -c community squid_server:3401 cacheServerRequests SQUID-MIB::cacheServerRequests.0 = INTEGER: 4715641 I can also verify that neither variable works without manually loading the mibfile: # snmpget -v1 -c community squid_server:3401 cacheServerRequests cacheServerRequests: Unknown Object Identifier (Sub-id not found: (top) -> cacheServerRequests) # snmpget -v1 -c community squid_server:3401 cacheRequestHitRatio cacheRequestHitRatio: Unknown Object Identifier (Sub-id not found: (top) -> cacheRequestHitRatio) What would cause a mibfile to work with snmpget, work with both MRTGs manually, work in daemon mode on 2.11.1 but only partially work with MRTG in Daemon mode in 2.16.1? Is it unreasonable for me to have multiple LoadMIB statements about? I've also already verified no other mib file on the system declares anything named cacheServerRequests: # grep "cacheServerRequests" /usr/share/snmp/mibs/* /usr/share/snmp/mibs/SQUID-MIB.txt: cacheServerRequests OBJECT-TYPE #
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