|Marc Wäckerlin a0ff15f717||2 years ago|
|LICENSE||2 years ago|
|README.md||2 years ago|
|diskio.sh||2 years ago|
|gluster-geo-replication.sh||2 years ago|
|load_per_cpu.sh||2 years ago|
|mountpoint.sh||2 years ago|
Various check scripts for use in icinga.
All scripts support option
--help, so call
./scriptname --help for
Icinga plugin to check load average per CPU. Shows 1min, 5min 15min
average per CPU. Different to check_load, the load is divided by the
number of CPU units and therefore normalized. So the same warning and
critical levels fit for any server.
If a server’s load is often high, you can find tipps in Isolating Linux High System Load, in short words:
WA(wait) column: CPU is often waiting, you probably have high disk load
so, if they are often much above 0, you are out of memory
ps awwlx --sort=vsz
ID(idle) is around 0, your CPU is overloaded
SY(system) is high, there could be large directories, e.g. mail spam
SY(system) is high, it could be the firewall iptables
US(user-space) is high, check with
topfor CPU consuming processes
bo(in/out) are high, check with
Icinga plugin to check whether a given mountpoint is
available. Detects problems, e.g. with glusterfs: In case of a
problem, there is an error message such as “socket not
connected”. Called with path to check.
Icinga plugin to check whether a given path is writable and checks the
performance of the given path. Detects problems with the filesystem or
specific io performance. Writes a test file using
dd and reports
write speed. It is recommended to use a subdirectory tmp for writing
Icinga plugin to check gluster geo replication. Returns OK, if no
connection is Faulty and one connection is Active. Returns CRITICAL,
if one connection is Faulty- Returns WARNING, if no connection is
Checkout to a path, e.g.
cd /opt sudo git co https://mrw.sh/admin-scripts/icinga-checks.git
cd /opt/icinga-checks sudo git pull
Go to Icinga Director, in
Commands add one:
Plugin Check Command
load per cpu
After adding the command, add the following parameters:
-C /opt/icinga-checks/load_per_cpu.sh -H $host.name$ -oStrictHostKeyChecking=no
The last argument
-oStrictHostKeyChecking=no is a key only ith no value.
To check mountpoint of
/var/volumes use argument name
-C with value
Then create a new Service Template, give it a name. e.g.
load per cpu and assign the check command just created.
Finally add a service, again you can use the same name and import the template just created, then assign the hosts to check. I use a host template for all linux servers, so the command is run in each of them.
Don’t forget to deploy the activity log in Icinga Director.