Every now and then some of our 7x24 hosts / services need a daily or weekly maintmode for regular restarts. Normally you would have to create 2 new timeperiods because you don’t want both hosts in a cluster to be restarted at the same time. This is not just way to much work, it also adds unnecessary complexity because
nobody can see the maintmode unless you look into the config files.
Thats where recurring downtimes will become handy and latest Thruk Version includes this new feature.
One of my bigger OMD installations consists of 13 sites. The visualization layer uses the Thruk interface. This alternative web ui can read data from multiple livestatus backends and display the host and service objects in one unified view. For this purpose i have one extra site called gui which only starts an apache process. I then point my browser to http://…./gui/thruk
The addresses of the livestatus backends have to be written into a config file, thruk_local.cfg. Now what if my list of 13 sites would be constantly changing? What if new OMD sites would be created, others deleted on a daily basis? I would have to edit the config file every time. With the new init-hook-feature, OMD will do this automatically for me.
Keeping an eye on cpu usage of your servers is one of the basic things in system monitoring. For Nagios (and Shinken, of course) you’ll find plenty of plugins for this task. However, i was never happy with the way they work. Most of the plugins you can download work like this: read a counter - sleep - re-read the counter. This technique not only adds an extra delay to the execution time of the plugin, but it only shows the state of things within a small time frame. If you run such a plugin every 5 minutes and it sleeps 5 seconds between the two measurements, you don’t know what happens in the other 295 seconds. This is a very small sample rate.
You probably have noticed that development of the new Nagios-compatible monitoring system Shinken progresses very fast. Every few hours there is another commit at GitHub, where Shinken’s code repository is hosted. Now if you want to try all these new features immediately, there’s a very easy method which requires a simple update-command instead of a fresh install.
The developer team of OMD (Open Monitoring Distribution) released the version 0.54 today. This version contains bugfixes and lots of updated packages including Shinken 1.0.1, Thruk 1.26, PNP4Nagios 0.6.17, NagVis 1.6.5 and many more.
This post demonstrates how to include and deploy Pentaho Kettle as a regular Web application. There are some pitfalls you should be aware of.
| Author: | Markus Hansmair |
|---|---|
| Categories: | application server, kettle |
Virtualisierung spart Kosten und Ressourcen, stellt aber hohe Ansprüche an Verwaltung und Monitoring. Die schwedische Firma op5 entwickelte für ihr gleichnamiges Nagios-basierendes Produkt das Plugin check_esx3, welches ein umfassendes Monitoring von VMWare ESX-Umgebungen ermöglicht.
Version 1.2.6 of Mod-Gearman has just been released. You may now configure the worker queues by custom variables instead of host/servicegroups.
| Author: | Sven Nierlein |
|---|---|
| Tags: | Mod-Gearman, Nagios |
| Categories: | mod-gearman, nagios |
check_oracle_health, check_mysql_health, check_mssql_health und check_db2_health bringen von Haus aus schon eine Menge Funktionalität mit. Allerdings wurden sie speziell für die Belange von Datenbankadministratoren entwickelt. Um auch den Betreibern von datenbankgestützten Applikationen die Möglichkeit zu geben, bestimmte Werte per SQL abzufragen, gibt es den Parameter "--mode sql". Damit lässt sich das numerische Ergebnis eines SQL-Aufrufs mit Schwellwerten vergleichen und in einen Nagios-Exitcode verwandeln. Üblicherweise sind die Anforderungen der Applikation an das Monitoring jedoch etwas komplexer. Am Beispiel von check_mysql_health und Wordpress wird gezeigt, wie man so etwas einfach umsetzen kann.
| Author: | Gerhard Laußer |
|---|---|
| Tags: | check_db2_health, check_mssql_health, check_mysql_health, check_oracle_health, Nagios, Shinken, wordpress |
| Categories: | misc, nagios, omd, shinken, wordpress |