[Ganglia-bugzilla] [Bug 342] New: gmond incorrectly reports zero network bytes in/out

[bugzilla-daemon@Millennium.Berkeley.EDU]

http://bugzilla.ganglia.info/cgi-bin/bugzilla/show_bug.cgi?id=342

           Summary: gmond incorrectly reports zero network bytes in/out
           Product: Ganglia Monitoring System
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: gmond
        AssignedTo: gan...@li...
        ReportedBy: tr...@sc...
   Estimated Hours: 0.0


In monitor-core/libmetrics/linux/metrics.c, strtoul is used to parse the
network packet and byte counts from /proc/net/dev. On modern 32-bit systems
(e.g. ARMv7), these counts are often 64-bit, whereas unsigned long is 32 bits.
When the counts exceed ULONG_MAX, Ganglia incorrectly reports 0 network bytes
in/out from then on.


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