about rrdtool
DESCRIPTION
About RRDtool. Tobias Oetiker OETIKER+PARTNER AG http://tobi.oetiker.ch. Monday Morning. 8 am. I‘m reading my mail. Riiing!. Boss calls!. Boss, so early ???. - PowerPoint PPT PresentationTRANSCRIPT
Monday Morning
8 am
I‘m reading my mail
Riiing!
Boss calls!
Boss, so early ???
OETIKER! That server is extremely slow again today.
Got to finish this presentation. My plane leaves in 90 Minutes. You really
disappoint me here with that broken infrastructure of yours. I trusted you! This has got to change. When I’m back I want a full report and a plan on how you are
going to fix this f&*ing mess.
The
Boss
is
back in
3 Days
OH
MY
GOD!
The therapy
was in vain
the nightmare
is
back!
breathe
organize
Approach:
1. Collect data
2. Identify bottleneck
3. Resolve problem
That would be too easy!
repeat
Approach:
1. Collect data
2. Identify bottleneck
3. Present analysis
4. Propose solution
5. Organize financing
6. Resolve problem
My proposal has
to be
simple
and
clear
greylisting introduced - spam drastically reduced
RRDtoolhelps
Use
RRDtoolkeep the initiative
make your boss look goodall at the same time …
An Image
says
more
than
1’000 words
VLANs intoduced – Latency only marginally increased
.
What remains
is the question
whatcan
RRDtooldo?
ok
RRDtool:stores
&presents data
RRD is the
RoundRobin
Database
Just feed ityour data …
rrdtool update x.rrd N:2.3
Severalrotating
fixed sizedata stores.
The older that data,the less interesting it is.
Old
data
has to
go.
RRDtool is fast.
Hundreds of updates a second.
All well.
But
you
can‘t
sell
that.
Visualization
makes data accessible.
anti-aliasing
alpha transparency
PNG
EPS
SVG
TrueType Fonts
.
A few lines of code
rrdtool \
graph \
file.png \
DEF:x=my.rrd:in:AVERAGE \
LINE1:x#ff0000:Input
generate
Massage Datawith RPN
(1,3,+)
A few lines of code …
rrdtool \
graph \
file.png \
DEF:x=my.rrd:in:AVERAGE \
CDEF:y=x,8,* \
LINE1:y#ff0000:Input8
Use RRDtool from …
Shell Scripts
Perl
Python
TCL
PHP
Ruby
Java
A few lines of code …
rrdtool \
graph \
file.png \
DEF:x=my.rrd:in:AVERAGE \
LINE1:x#ff0000:Input
And
in
reality?
A Mail server …
big responsibility
must work at all times
huge log files
Log files
are
not
sexy
MailGraph by David Schweikert
• +Viren, +Spam• March 2007• 1140 Lines• 3 Forks
• What does my Mailserver do? Trends?
• November 2000:300 Lines
Another Example
February 2001
finally DSL
long time ago
but all the same
performance
was
bad
ISP
did
not
Believe me!
so I wrote …
SmokePing by Tobi Oetiker
• My DLS-Line didn’t work.
• Nov 2001 / 1500 l.• 1 Plug-in
• +Alarms, +Graphexplorer
• July 2007 / 12000 l.• 26 Plug-ins
RRDtool is …
• fast• powerful• configurable• versatile• gnu-ish free• colorful• transparent
• simple and complex • anti-aliased• multi-platform• open-source• scriptable• presentation-save• an industry standard
… for you too!
