The code where I found given constant is linux specific, maybe you have
something else?
b.
On 29 March 2011 23:01, Cameron Spitzer <cspit...@nvidia.com> wrote:
>
> CPPFLAGS=-DREMOVE_BOGUS_SPIKES
> had no effect in my installation.
> We eventually found a patch in a non-ganglia forum somewhere, but I can't
> find it now.
> It basically added input sanity checking.
>
> The problem is a 32-bit counter on a 1 Gbps NIC can overflow in less than
> gmond's sampling interval.
> When it overflows, ganglia treats the small negative number as a very large
> positive.
> This is a known ganglia bug. It's been around since 2003. You just have
> to live with it, or try to fix it yourself.
>
> -Cameron
>
>
>
>
> Bostjan Skufca wrote:
>
> That really seems to be the case. Speaking out of my head now but it seems
> that I only see this on HP DL3x0 with Broadcom Corporation NetXtreme II
> BCM5708 Gigabit Ethernet (rev 12) interfaces. I've found some threads...
>
> Anyway, does this really work? There is something in code which eliminates
> 1e^13 and bigger or so it seems...
>
> make CPPFLAGS=-DREMOVE_BOGUS_SPIKES
>
>
>
> b.
>
>
> On 29 March 2011 20:30, Vladimir Vuksan <vli...@veus.hr> wrote:
>
>>
>> I see it all the time :-(. According to Bernard this is due to problem
>> with some of the Broadcom cards. Perhaps Bernard can offer more insight.
>>
>> On Tue, 29 Mar 2011 20:23:31 +0200, Bostjan Skufca <bost...@a2o.si>
>> wrote:
>> > Hi,
>> >
>> > occasionally I notice huge spikes in network graphs in ganglia
>> (petabytes
>> > per second or so). Not sure whether those are caused by gmond restarts
>> or
>> > network interface byte counter overflows or something else.
>> > Is someone else also seeing similar behaviour? Running latest ganglia
>> > (3.1.7).
>> >
>> > b.
>>
>
>
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