Munin / News: Recent posts

Munin helps showing performance changes

<p>Using btrfs on a networked backup server looked like a good idea, what with the
data integrity checksumming and all.</p>

<p>Reformatting it to ext4 gave a decent increase in write performance, and will
hopefully give fewer server crashes per week (from "many" to "none" is the goal)
Just before this wipe-and-reinstall, "umount" had been hanging for a few hours,
and the admin got a tad annoyed.</p>... read more

Posted by SourceForge Robot 2014-02-21

Accepted 2.1.5-1 in experimental (medium) (Holger Levsen)

<a href="http://packages.qa.debian.org/m/munin/news/20140216T112041Z.html">[2014-02-16] Accepted 2.1.5-1 in experimental (medium) (Holger Levsen)</a> link

Posted by SourceForge Robot 2014-02-16

munin 2.0.19-3 MIGRATED to testing (Britney)

<a href="http://packages.qa.debian.org/m/munin/news/20140131T163916Z.html">[2014-01-31] munin 2.0.19-3 MIGRATED to testing (Britney)</a> link

Posted by SourceForge Robot 2014-01-31

Accepted 2.0.19-3 in unstable (medium) (Holger Levsen)

<a href="http://packages.qa.debian.org/m/munin/news/20140125T224939Z.html">[2014-01-25] Accepted 2.0.19-3 in unstable (medium) (Holger Levsen)</a> link

Posted by SourceForge Robot 2014-01-25

Accepted 2.1.4-1 in experimental (medium) (Holger Levsen)

<a href="http://packages.qa.debian.org/m/munin/news/20140123T212347Z.html">[2014-01-23] Accepted 2.1.4-1 in experimental (medium) (Holger Levsen)</a> link

Posted by SourceForge Robot 2014-01-23

Tutorial - Setup a dev environment for Munin

<p>I discovered some time ago the marvelous <code>dev_scripts/</code> directory
in the munin source code. So, as its usage is <em>very</em> easy, I'll just
write a tutorial about how to use it</p>
<h2>Prerequisites</h2>
<p>To use it, one has to install all the packages needed for munin, and to grab
a copy of the source code. Easiest is to use either a tarball, or to clone the
git repository.</p>
<p>Note that the <a href="http://munin-monitoring.org/browser/munin/README?rev=master" hreflang="en">guidelines on contributing</a> back are specified directly in the git
repo.</p>
<p>Now, I just assume you want to contribute back, otherwise you would not care
much about the said dev environment. That means using the git way of doing
it.</p>
<h2>Download the source code</h2>
<p>First step is to clone the git repository. We will use
<code>$HOME/src/munin</code> as the development directory.</p>
<pre>mkdir -p $HOME/src
cd $HOME/src
git clone https://github.com/munin-monitoring/munin munin
cd munin
</pre>
<h2>Compile munin</h2>
<p>Now, we have to compile the source code. I know that it sounds strange as
the code is mostly Perl, but there are some templates that need to be filled
with the environment specifics, such as the Perl interpreter path, a POSIX
compatible shell, ...</p>
<pre>dev_scripts/install 1
</pre>
<p>Now all munin (and munin-node) should be compiled and installed in
<code>$HOME/src/munin/sandbox</code>.</p>
<p>Note that the <code>1</code> at the end is explained below.</p>
<h2>Using the dev tools</h2>
<p>There are some different tools in <code>dev_scripts/</code> :</p>
<h3>install</h3>
<p>This is the one you used already. You have to use it every time you want to
recompile &amp; deploy the package.</p>
<p>The <code>1</code> argument, does a full re-install (wipe &amp; install), so
you don't usually want to do that.</p>
<h3>restart_munin-node</h3>
<p>This is a tool to start the developpement node. Note that it listens on the
port 4948, so you can use it alongside a normal munin-node.</p>
<h2>To Be Continued</h2>
<p>More on how to launch munin-update, munin-graph, .... &amp; even CGI</p> link

Posted by SourceForge Robot 2014-01-15

munin 2.0.19-2 MIGRATED to testing (Britney)

<a href="http://packages.qa.debian.org/m/munin/news/20131224T163910Z.html">[2013-12-24] munin 2.0.19-2 MIGRATED to testing (Britney)</a> link

Posted by SourceForge Robot 2013-12-24

Accepted 2.0.6-4+deb7u2 in wheezy-security (high) (Stig Sandbeck Mathisen)

<a href="http://packages.qa.debian.org/m/munin/news/20131214T124730Z.html">[2013-12-14] Accepted 2.0.6-4+deb7u2 in wheezy-security (high) (Stig Sandbeck Mathisen)</a> link

Posted by SourceForge Robot 2013-12-14

Accepted 2.0.19-2 in unstable (low) (Holger Levsen)

<a href="http://packages.qa.debian.org/m/munin/news/20131213T120357Z.html">[2013-12-13] Accepted 2.0.19-2 in unstable (low) (Holger Levsen)</a> link

Posted by SourceForge Robot 2013-12-13

Accepted 2.0.19-1 in unstable (low) (Holger Levsen)

<a href="http://packages.qa.debian.org/m/munin/news/20131212T131848Z.html">[2013-12-12] Accepted 2.0.19-1 in unstable (low) (Holger Levsen)</a> link

Posted by SourceForge Robot 2013-12-12

munin 2.0.18-1 MIGRATED to testing (Britney)

<a href="http://packages.qa.debian.org/m/munin/news/20131205T163910Z.html">[2013-12-05] munin 2.0.18-1 MIGRATED to testing (Britney)</a> link

Posted by SourceForge Robot 2013-12-05

Milestone Munin 2.0.18 completed

<p>
Next bugfix release in the munin 2.0 stable series.
</p> link

Posted by SourceForge Robot 2013-12-04

Experimenting with a C munin node

<h2>Core plugins are designed for simplicity...</h2>
<p>As I wrote about it earlier, Helmut rewrote some core plugins in C. It was
maintly done with efficiency in mind.</p>
<p>As those plugins are only parsing one <code>/proc</code> file, there seemed
no need to endure the many forks inherent with even trivial shell programming.
It also acknowledges the fact that the measuring system shall be as light as
possible</p>
<p>Munin plugin are highly driven towards simplicity. Therefore having shell
plugins is quite logical. It conveys the educational sample purpose for users
to write their own, while being quite easy to code/debug for the developpers.
Since their impact on current systems is very small, there are not much
incentive to change.</p>
<h2>... but efficiency is coming !</h2>
<p>Nonetheless, now monitored systems are becoming quite small.</p>
<p>It is mostly thanks to embedded systems like the <a href="http://www.raspberrypi.org/" hreflang="en">RaspberryPi</a>. This means that
processing power available is much lower than on <em>normal</em>
nodes<sup>[<a href="http://blog.pwkf.org/post/2013/12/#pnote-729310-1" id="rev-pnote-729310-1" name="rev-pnote-729310-1">1</a>]</sup>.</p>
<p><strong>Now</strong> the embedded C approach for plugins has a new
rationale.</p>
<div class="footnotes">
<h4>Notes</h4>
<p>[<a href="http://blog.pwkf.org/post/2013/12/#rev-pnote-729310-1" id="pnote-729310-1" name="pnote-729310-1">1</a>] Usually datacenter nodes are more in the high end of
the spectrum than the low-end.</p>
</div> link

Posted by SourceForge Robot 2013-12-02

Accepted 2.0.18-1 in unstable (high) (Stig Sandbeck Mathisen)

<a href="http://packages.qa.debian.org/m/munin/news/20131202T152253Z.html">[2013-12-02] Accepted 2.0.18-1 in unstable (high) (Stig Sandbeck Mathisen)</a> link

Posted by SourceForge Robot 2013-12-02

munin 2.0.17-3 MIGRATED to testing (Britney)

<a href="http://packages.qa.debian.org/m/munin/news/20131012T163923Z.html">[2013-10-12] munin 2.0.17-3 MIGRATED to testing (Britney)</a> link

Posted by SourceForge Robot 2013-10-12

Accepted 2.0.17-3 in unstable (low) (Stig Sandbeck Mathisen)

<a href="http://packages.qa.debian.org/m/munin/news/20131001T134908Z.html">[2013-10-01] Accepted 2.0.17-3 in unstable (low) (Stig Sandbeck Mathisen)</a> link

Posted by SourceForge Robot 2013-10-01

munin 2.0.17-2 MIGRATED to testing (Britney)

<a href="http://packages.qa.debian.org/m/munin/news/20130909T163916Z.html">[2013-09-09] munin 2.0.17-2 MIGRATED to testing (Britney)</a> link

Posted by SourceForge Robot 2013-09-09

Accepted 2.0.17-2 in unstable (low) (Holger Levsen)

<a href="http://packages.qa.debian.org/m/munin/news/20130829T213501Z.html">[2013-08-29] Accepted 2.0.17-2 in unstable (low) (Holger Levsen)</a> link

Posted by SourceForge Robot 2013-08-29

munin 2.0.17-1 MIGRATED to testing (Britney)

<a href="http://packages.qa.debian.org/m/munin/news/20130809T163916Z.html">[2013-08-09] munin 2.0.17-1 MIGRATED to testing (Britney)</a> link

Posted by SourceForge Robot 2013-08-09

Accepted 2.0.17-1 in unstable (low) (Holger Levsen)

<a href="http://packages.qa.debian.org/m/munin/news/20130729T234847Z.html">[2013-07-29] Accepted 2.0.17-1 in unstable (low) (Holger Levsen)</a> link

Posted by SourceForge Robot 2013-07-29

munin 2.0.16-3 MIGRATED to testing (Britney)

<a href="http://packages.qa.debian.org/m/munin/news/20130727T163906Z.html">[2013-07-27] munin 2.0.16-3 MIGRATED to testing (Britney)</a> link

Posted by SourceForge Robot 2013-07-27

Milestone Munin 2.0.17 completed

Milestone Munin 2.0.17 completed link

Posted by SourceForge Robot 2013-07-19

Accepted 2.0.16-3 in unstable (low) (Stig Sandbeck Mathisen)

<a href="http://packages.qa.debian.org/m/munin/news/20130716T125641Z.html">[2013-07-16] Accepted 2.0.16-3 in unstable (low) (Stig Sandbeck Mathisen)</a> link

Posted by SourceForge Robot 2013-07-16

munin 2.0.16-2 MIGRATED to testing (Britney)

<a href="http://packages.qa.debian.org/m/munin/news/20130620T163916Z.html">[2013-06-20] munin 2.0.16-2 MIGRATED to testing (Britney)</a> link

Posted by SourceForge Robot 2013-06-20

Accepted 2.0.6-4+deb7u1 in wheezy (low) (Holger Levsen)

<a href="http://packages.qa.debian.org/m/munin/news/20130609T171705Z.html">[2013-06-09] Accepted 2.0.6-4+deb7u1 in wheezy (low) (Holger Levsen)</a> link

Posted by SourceForge Robot 2013-06-09