One of the things you’d expect from an active open source project is that the code base is likely to grow as more and more features are added. In An exploration of open core licensing in network management I mentioned that one possible side effect of open core software is the creation of a functionality ceiling. A functionality ceiling is a level of functionality beyond which the community edition product manager is unwilling to implement because of the fear that the enterprise product will be less attractive to potential customers.
A real world example of what Tarus Balog from OpenNMS has been banging on about recently with his critique of open core or fauxpen source. A product manager who has an open product and a closed product plainly has a decision to make over which features go into which product. Give too much away and the value add of the closed enterprise product is insufficient to warrant the licence fees. Put too many features into the enterprise product and the open source offering becomes useless.
…by Grig Gheorghiu over on the Agile Testing blog: The sad state of open source monitoring tools. "I wish there was a standard nomenclature for this stuff, as well as a standard way for these tools to inter-operate. As it is, you have to learn each tool and train your brain to ignore all the weirdness that it encounters." One of the problems with I.T. is the absence of a standard terminology.
Attribute / Project OpenNMS Nagios Zenoss Hyperic Zabbix Peer Support Forum Mailing list Commercial Support Support contract Training Consulting Learning resources Blog Book(s) Update 1: Zenoss has a forum / mailing list system.
Attribute / Project OpenNMS Nagios Zenoss Hyperic Zabbix General Licence GPL GPL GPL GPL GPL First released 2000 1998 2006 2006 2001 Development languages Java C Python / Zope Java / C C / PHP External dependencies RRDTool / JRobin Net-SNMP / RRDTool RRDTool SNMP4J Net-SNMP Configuration XML files Text files Web based Web based Web based Extensible User interface Web Web / WAP Web Web Web Reporting Update 1: Added C to the Hyperic development languages
One side effect of the increased competition in open source network management is that it is becoming increasingly hard to choose which tool is right for you. With that in mind I intend to create a comparison featuring the best known open source tools to make the process of choosing the right tool a little bit easier. I’ll publish the comparison in tranches so that, by the end of it, a comprehensive comparison is available.
Attribute / Project OpenNMS Nagios Zenoss  Hyperic  Zabbix Platform Linux Windows OSX Solaris *BSD Hardware Appliance Virtual Appliance    Zenoss Core is used for the purpose of this comparison.
Roberto Galoppini posted an interview with Mark Hinkle, the community VP over at Zenoss. Interesting…
One of the great things about sourceforge, apart from the cool services they provide free to open source projects, is that they provide statistics about the projects they host. One of the stats that sourceforge provides is a history of project downloads. You can’t compare the stats though. So I thought it would be interesting to compare the downloads for the major open source network management projects. The volume of downloads is indicative, like search trends, of the relative mind share for each project.
Google Trends is an on-line service for comparing the search volumes for up to five keywords. I thought it would be interesting to compare the relative buzz of the "new wave" open source network management players between themselves, but also between other open source projects and commercial products. Google Trends doesn’t supply the search volumes themselves, so no quantitative data will be presented. The data that is presented is solely comparative.