Bug 818110
| Summary: | mrtg doesn't work with --ifref=name configuration | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | David Woodhouse <dwmw2> | ||||
| Component: | mrtg | Assignee: | Vitezslav Crhonek <vcrhonek> | ||||
| Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 16 | CC: | vcrhonek | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2013-02-14 02:28:59 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Created attachment 581546 [details]
mrtg.cfg
It's using SNMPv1 for the PPP interfaces. There were other strange issues when I used SNMPv2, which I don't recall right now.
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I'm trying to monitor the ADSL lines that provide my connectivity to the outside world. These are PPP connections, so they get a new ifIndex every time a line drops and reconnects. So obviously I need to use ifName to match them. However, mrtg really doesn't seem to be very good at this. When the ifIndex changes, it usually just loses track of the device and can no longer find it. Right now, for example... [root@obelisk ~]# LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lock/mrtg/mrtg_l --confcache-file /var/lib/mrtg/mrtg.ok 2012-05-02 09:48:55: WARNING: Can not determine ifNumber for public.98.173: ref: 'Name' key: 'pppoa-ppp1' 2012-05-02 09:48:55: WARNING: Can not determine ifNumber for public.98.173: ref: 'Name' key: 'pppoa-ppp0' 2012-05-02 09:48:55: ERROR: Target[81.2.98.173_pppoa-ppp1][_IN_] ' $target->[3]{$mode} ' did not eval into defined data 2012-05-02 09:48:55: ERROR: Target[81.2.98.173_pppoa-ppp1][_OUT_] ' $target->[3]{$mode} ' did not eval into defined data Use of uninitialized value $inlast in pattern match (m//) at /usr/bin/mrtg line 1045. Use of uninitialized value $outlast in pattern match (m//) at /usr/bin/mrtg line 1048. 2012-05-02 09:48:55: ERROR: Target[81.2.98.173_pppoa-ppp0][_IN_] ' $target->[4]{$mode} ' did not eval into defined data 2012-05-02 09:48:55: ERROR: Target[81.2.98.173_pppoa-ppp0][_OUT_] ' $target->[4]{$mode} ' did not eval into defined data Use of uninitialized value $inlast in pattern match (m//) at /usr/bin/mrtg line 1045. Use of uninitialized value $outlast in pattern match (m//) at /usr/bin/mrtg line 1048. [root@obelisk ~]# snmpwalk -v2c -c public 81.2.98.173 | grep pppoa-ppp IF-MIB::ifDescr.11 = STRING: pppoa-ppp1 IF-MIB::ifDescr.12 = STRING: pppoa-ppp0 HOST-RESOURCES-MIB::hrDeviceDescr.1035 = STRING: network interface pppoa-ppp1 HOST-RESOURCES-MIB::hrDeviceDescr.1036 = STRING: network interface pppoa-ppp0 IF-MIB::ifName.11 = STRING: pppoa-ppp1 IF-MIB::ifName.12 = STRING: pppoa-ppp0 [root@obelisk ~]# grep pppoa-ppp /var/lib/mrtg/mrtg.ok public.98.173_ Descr pppoa-ppp0 37 public.98.173_ Descr pppoa-ppp1 16 public.98.173_ Name pppoa-ppp0 public.98.173_ Name pppoa-ppp1 public.98.173__2 Descr pppoa-ppp0 8 public.98.173__2 Descr pppoa-ppp1 9 public.98.173__2 Name pppoa-ppp0 8 public.98.173__2 Name pppoa-ppp1 9 [root@obelisk ~]# rm /var/lib/mrtg/mrtg.ok rm: remove regular file `/var/lib/mrtg/mrtg.ok'? y [root@obelisk ~]# LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lock/mrtg/mrtg_l --confcache-file /var/lib/mrtg/mrtg.ok 2012-05-02 09:50:19: WARNING: Could not match host:'public.98.173:' ref:'Name' key:'pppoa-ppp1' 2012-05-02 09:50:19: WARNING: Could not match host:'public.98.173:' ref:'Name' key:'pppoa-ppp0' 2012-05-02 09:50:19: ERROR: Target[81.2.98.173_pppoa-ppp1][_IN_] ' $target->[3]{$mode} ' did not eval into defined data 2012-05-02 09:50:19: ERROR: Target[81.2.98.173_pppoa-ppp1][_OUT_] ' $target->[3]{$mode} ' did not eval into defined data Use of uninitialized value $inlast in pattern match (m//) at /usr/bin/mrtg line 1045. Use of uninitialized value $outlast in pattern match (m//) at /usr/bin/mrtg line 1048. 2012-05-02 09:50:19: ERROR: Target[81.2.98.173_pppoa-ppp0][_IN_] ' $target->[4]{$mode} ' did not eval into defined data 2012-05-02 09:50:19: ERROR: Target[81.2.98.173_pppoa-ppp0][_OUT_] ' $target->[4]{$mode} ' did not eval into defined data Use of uninitialized value $inlast in pattern match (m//) at /usr/bin/mrtg line 1045. Use of uninitialized value $outlast in pattern match (m//) at /usr/bin/mrtg line 1048. [root@obelisk ~]# LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lock/mrtg/mrtg_l --confcache-file /var/lib/mrtg/mrtg.ok [root@obelisk ~]# grep pppoa /var/lib/mrtg/mrtg.ok public.98.173_ Descr pppoa-ppp0 12 public.98.173_ Descr pppoa-ppp1 11 public.98.173_ Name pppoa-ppp0 12 public.98.173_ Name pppoa-ppp1 11 public.98.173__2 Descr pppoa-ppp0 12 public.98.173__2 Descr pppoa-ppp1 11 public.98.173__2 Name pppoa-ppp0 12 public.98.173__2 Name pppoa-ppp1 11 *Sometimes* it seems to work OK and find the new interface, but not always.