Re: [gentoo-user] strange TCP timeout errors

[Grant <emailgrant@gmail.com>]

>>> I've attached a PNG from Munin showing the TCP timeout errors on my
>>> Gentoo server over the past month.  The data is expressed in timeouts
>>> per second and that rate is shown to be steadily increasing over the
>>> past month.  That seems strange to me.  Munin doesn't show any other
>>> data point increasing like this over the time period.  Any ideas?
>>>
>>> - Grant
>>>
>>
>> weird - does it reset on an interface restart or reboot?
>
> this would be my test #1


I rebooted and the rate of errors has dropped off to almost nothing.


>> Can you verify its not an artefact within munin (how?)
>
> In theory, a misconfigured graph can do this. Munin can draw many
> different types of graph, including cumulative values. Even for a data
> type like this which is X events per unit time, if you tell munin to add
> them all up, it will do so and graph it.
>
> Qucik test is to look at the graph config.


This graph lives in the "network" section of the munin web interface.
There is no matching section in /etc/munin/plugin-conf.d/munin-node so
it should be be using the default config.

Any ideas based on this new info?

- Grant