Download - Why we do monitoring Wrong #osmc edition
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WrongWhy we do
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…frustration…
devnot ops
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Please don’t be angry!
Some times I am busy
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TAKE:1
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check_disk-w 80 –c 90
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Slack
-w 80 –c 901gb1tb1pb
0.2g219g225 179g
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Better?
-w $ARG1$1gb1tb1pb
0.2g22g2 251g
80%98%99,8%
Magic?
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0
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1000
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Value Warning Critical
The problem
The first alert
On call staff alerted
Lost time
Things went bad!
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0
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1000
1500
2000
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Value Warning Critical
The problem
The first alert
On call staff alerted
Lost time
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No Slack
-w trend-line1gb1tb1pb
0g0g0g
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Works With Everything!
Magic?
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TAKE:2
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planningWhat aboutCapacity
Bounds?
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Alarm clock
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0
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Warning Critical HDD 1 HDD 2
Full
How long?
> 80%
> 90%
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0
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1000
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Warning Critical HDD 1 HDD 2
Full
warn=full in less than x weeks
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Photo Credit Howard Dickins
Alarm clock
2 hours before work
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0
500
1000
1500
2000
2500
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Value Warning Critical
The first alert
On call staff alerted
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No basic math!
Magic?
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check_disk-w 80 –c 90
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0
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Value Warning Critical
Backup
check_disk check_disk_backup
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0
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Value Warning Critical
check_disk warn=usage>80% and not_backup
Backup
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No it is tags
Magic?
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Other
TAKE:1
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check_load-w 1 –c 2
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Bad CPU load?80%
90%100%
0%
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0
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60
70
80
90
100
Value Yesterday Last Week
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No, still math
Magic?
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check_load-w 1 –c 2
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High Load???GOOD BAD
DO WE CARE?
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No, still math
Magic?
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TAKE:2
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check_mem-w 80 –c 90
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Bad Memory?80%
90%100%
0%
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Managed…Java
JVM.net
CLR
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check_mem
check_jmxcheck_counter
check_wmi
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check_disk-w 80 –c 90
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FULL DISK???GOOD BAD
DO WE CARE?
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Because we can?Why do we monitor?
Because we do?Because…
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Business!Technology
NOT
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IT
BUSINESS
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No, common sense
Magic?
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TAKE:1
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Nagios™ is Old
EasySimple
What we always do
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bischeckAddons
Other solutions“the new stuff”
forks
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Why a tool?
fast forward 15 yearsNagios™Naemon™could do this!
Why an addon?
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cron*/5 * * * * wrap.sh mycheck
#!/bin/bash$*if [ $? == 1 ];then
send-email.shfi;
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TAKE:2
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TAKE:1
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TAKE:2
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Photo by Olga Berrios
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Information about NSClient++http://nsclient.org
facebook.com/nsclient
Slides, and exampleshttp://nsclient.org/nscp/conferances
My Bloghttp://blog.medin.name