Bug 491336
| Summary: | mrtg fails to graph 64 bit counters | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Jani Ollikainen <bestis+rh> |
| Component: | mrtg | Assignee: | Vitezslav Crhonek <vcrhonek> |
| Status: | CLOSED WONTFIX | QA Contact: | BaseOS QE <qe-baseos-auto> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 5.3 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-03-12 12:17:20 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
RHEL-5 is entering Production 2 Phase (see [1]), only critical and important security issues are going to be adressed => closing this bug WONTFIX. [1] https://access.redhat.com/support/policy/updates/errata/ |
Description of problem: MRTG determines 0 bytes of traffic when the counter is over 32bit value. When the traffic counter is under 32bit value it will graph it correctly. The key is here that the values must be over 32bit range, if they are not, it will work. So when reproducing it, check that your interface counters are big enough or debug with own script. Version-Release number of selected component (if applicable): mrtg-2.14.5-2 How reproducible: /etc/mrtg/mrtg.conf: #traffic Options[eth0]: growright Target[eth0]: `/usr/local/bin/mrtg-script-eth0` MaxBytes[eth0]: 2621440 Title[eth0]: Traffic Analysis PageTop[eth0]: <H1>Traffic stats</H1> /usr/local/bin/mrtg-script-eth0: #!/bin/sh cat /proc/net/dev | grep eth0 | sed s/eth0://g | tr -s " " | awk '{print $1;}' cat /proc/net/dev | grep eth0 | sed s/eth0://g | tr -s " " | awk '{print $9;}' uptime|sed -e 's/.*up \(.*\),.*[0-9]* user.*/\1/' hostname Steps to Reproduce: 1. Configure 2. Wait 3. Watch the result Actual results: 0 bytes of traffic if the counter value is over 32bit Expected results: Normal traffic graph Additional info: Workaround to this problem is to modulo the values to under 32bit: /usr/local/bin/mrtg-script-eth0: #!/bin/sh echo $[`cat /proc/net/dev | grep eth0 | sed s/eth0://g | tr -s " " | awk '{print $1;}'` % 2147483648 ] echo $[`cat /proc/net/dev | grep eth0 | sed s/eth0://g | tr -s " " | awk '{print $9;}'` % 2147483648 ] uptime|sed -e 's/.*up \(.*\),.*[0-9]* user.*/\1/' hostname .. But it would be nice that this wouldn't be needed, took some time to debug this and confirm it.