public inbox for gentoo-user@lists.gentoo.org
 help / color / mirror / Atom feed
From: Alan McKinnon <alan.mckinnon@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] strange TCP timeout errors
Date: Tue, 6 Oct 2015 01:26:51 +0200	[thread overview]
Message-ID: <5613073B.5090600@gmail.com> (raw)
In-Reply-To: <5613003F.5020303@iinet.net.au>

On 06/10/2015 00:57, Bill Kenworthy wrote:
> On 06/10/15 01:35, Grant wrote:
>> 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

> 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.


-- 
Alan McKinnon
alan.mckinnon@gmail.com



  reply	other threads:[~2015-10-05 23:27 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-05 17:35 [gentoo-user] strange TCP timeout errors Grant
2015-10-05 22:57 ` Bill Kenworthy
2015-10-05 23:26   ` Alan McKinnon [this message]
2015-10-07 12:58     ` Grant
2015-10-07 14:22       ` Alan McKinnon
2015-10-07 15:55         ` Grant
2015-10-07 18:39           ` Alan McKinnon
2015-10-07 19:42             ` brettrsears
2015-10-07 22:25               ` Alan McKinnon
2015-10-09 14:15             ` Grant

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=5613073B.5090600@gmail.com \
    --to=alan.mckinnon@gmail.com \
    --cc=gentoo-user@lists.gentoo.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox