You dreamed about it… Centreon Enterprise Server 2.2

You have been waiting for it for a long time but you won’t be disappointed: the new 2.2 version of Centreon Enterprise Server is available… Continue reading

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A Happy New Year with Centreon and 3 New Versions

At Merethis, we all wanted to wish you a Happy New Year for 2013. The best way we found to thank you for supporting the Centreon project was to work hard over the Holidays Period to launch 3 new major versions of our main Open Source products including:

  • Centreon 2.4.0
  • Centreon Engine 1.3.0
  • Centreon Broker 2.4.0

As well as a new online documentation site.

Today, we are happy to introduce all these innovations to you.

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Release Centreon Broker 2.3.0

The support of RRDtools graphs is the most outstanding feature in this version. Now, users may create new graph types such as GAUGE, COUNTER, DERIVE or ABSOLUTE (

A new syntax regarding performance data is required in order to enable these new graph types. Although the former syntax is still compatible with the default graph type, it is strongly recommended to update your plugins in order to improve the overall presentation of your graphs! You can find all details about this very syntax on the documentation website of Centreon.

Please, find the list of enhancements and bug fixes of Centreon Broker 2.3.0 on the Centreon forge.

Release of Centreon Engine 1.3.0 & Centreon Broker 2.2.1


Release of Centreon Engine 1.3.0

This new version implements a key feature, the use of connectors. The main purpose of these daemons (programs that are run in background) is to provide better execution context to the check plugins. For instance:
•    SSH connector: this component is a connection multiplexer. It offers the reduction of open connections and it also makes them persistent
•    Perl connector : this component embeds a Perl interpreter and somewhat enhances the execution performances of plugins written in Perl
The other noticeable features are the following:
•    Replacement of the Qt library by centreon-clib and libxerces (for the XML part)
•    A few fixes
The detailed (technical) changelog is available at this URL :

Release of Centreon Broker 2.2.1

This new version enhances overall performances thanks to the implementation of SQL transactions. Basically, the concept of these transactions is to group queries in order to generate less input/output on the server. When transactions are used, the executed queries affect a virtual copy of the database. It is only at the end of this operation that data is actually written in the disk and  made accessible to users. This mechanism highly enhances the input/output situation of the storage device.

The other noticeable features are the following:
•    Non-process of host/service statuses that are too old (next_check < now)
•    New statistics module for retrieving information such as the list of loaded modules, processing speed, connection status, etc…
•    Deactivation of the SIGCHLD signal (less back and forth signals between kernel-space and user-space)
•    Rotation of log files (for limiting storage issues)
•    Possibility to write cbmod logs directly in the Centreon Engine/Nagios logs
•    Possibility to disable log synchronization on the disk (*sync* system calls)
•    Stalled callbacks with Centreon Engine/Nagios (lesser restarting time)
The detailed (technical) changelog is available at this URL:

Centreon Engine & Centreon Broker – Technical and Performance Benchmarks

From Nagios©/NDO to Centreon Engine/Broker

Since a few years, the core of Nagios© has been maintained by a single developer and as a consequence has been evolving at a slower pace. The Nagios© community had attempted several times to broaden the developer base. Many community members such as Centreon Development team tried to propose improvements and patches, but with little success. Effective community commitment gradually deflated, long standing community supporters decided to fork Nagios© (among them are the people around Icinga for example), so did we!


To improve performance and quality, Centreon Engine and Centreon Broker have been created as a Nagios© alternative.

Thanks to many strategic partners, Merethis has tested Centreon Engine during every development steps. Centreon Engine is now stable and already run in production from small to medium IT networks. However, even if Centreon Engine and Centreon Broker are stable enough to deploy them in production, what about the performances? This study is based on a simple and common use case of production that compare a Nagios© based monitoring system to a Centreon Engine one. This aim of this study is not to reach the top of the Centreon Engine performances but just to compare it with Nagios© in a standard use case and show you the performances it brings. We have added the explanation of the biggest evolution Centreon developers did to make it easier to understand. We have planned to publish full performance benchmarks in the next months. If you want to give us your feedback on this document, the results, or the explanation, feel free to comment this blog post !

Key Comparison Findings

  • Centreon Engine and Centreon Broker start and are ready really faster than Nagios© working with NDO.
  • It gives the control back to the administrator faster and allows to restart with less loose of monitoring data.
  • Centreon Engine requires less CPU, less memory and decreases the number of IO.
  • Checks are done faster with less latency, and much more checks can be done with the same server.
  • Centreon need less powerful monitoring servers thanks to these improvements.
  • They can be run more easily on virtual machines, making the monitoring cloud simpler.


Next steps

More detailled benchmarks are already planned for full performance of Centreon Engine working with Broker. New improvements are already under development within Centreon Engine and Centreon Broker. Some of them for example in the 1.2 Centreon Engine should decrease the CPU activity more than it already does…

Want to know more?

Please, download the benchmarks : Centreon Engine Benchmarks
Stay tuned of the future releases by following us on twitter (@centreon) !
Download Centreon Engine and Centreon Broker