Jan 12
With the likes of cloud computing and virtualisation starting to become staples for today’s business, IT environments are continuing to grow in complexity. Furthermore, there is growing pressure on many organisations to reduce the environmental impact of their IT systems.
In response to these developments, organisations need to change the way they manage and therefore monitor their IT infrastructure. For example, with the advent of virtualisation, organisations now have a fundamentally different infrastructure platform from which they are running business systems. This in turn requires a different monitoring approach. Continue reading »
Tagged with: cloud monitoring • Green IT • Nagios • Opsview • Virtualization
Dec 12
Apache Solr is an open source enterprise search service from the Lucene project. Solr is written in Java and runs as a standalone full-text search server within a servlet container such as Tomcat.
Like any service or component in your architecture, you’ll want to monitor it to ensure that it’s available and gather performance data to help with tuning.
In this post, we’ll look at how we can monitor Solr, what performance metrics we might want to gather and how we can easily achieve this with Opsview.
Continue reading »
Tagged with: agentless checks • apache solr • JMX • Lucene • Nagios • nrpe • Opsview
Oct 10
It is often the case that hosts on your network will be similar, but differ in subtle ways depending on their exact purpose. For example some servers may have two internal disks whilst some may have just one, and some servers may have multiple ethernet cards where others do not. Opsview provides attributes to deal with situations like this, as they are a way of associating metadata with a host – here is an example of how to configure Opsview to use them. Continue reading »
Tagged with: attributes • ethernet • Linux • Opsview • server monitoring • servers
Oct 05
So you followed the steps in the previous post about enabling SNMP traps on ESX4. Now you probably want to pick those up by something useful. Opsview can be configured to handle the traps quite easily. Just follow the steps below and your server will be listening to those pesky traps. After that, you’ll need to write a couple of service check handlers in Opsview to make sense of the traps. More on that later. This post is just about picking them up. Continue reading »
Tagged with: debian • ESX monitoring • ESX4 • Opsview • SNMP traps • Ubuntu • Virtualization
Aug 05
This post summarises the work involved to successfully monitor your ESX environment using Opsview and the vSphere SDK for Perl. Continue reading »
Tagged with: ESX monitoring • open source monitoring • Opsview • Virtualization • vmware • vSphere SDK
May 06
If you’re managing any web sites or web applications Selenium can be used with Opsview’s monitoring platform to ensure your customers get the very best user experience and increase your online conversion rates. Continue reading »
Tagged with: online conversion rate • Opsview • Selenium • user experience • web performance
Apr 14
By tonvoon Catalyst, Development, Frameworks, MSPs, Nagios, Opsview, System Management, Unix / Linux, business systems, multi-tenancy, security
Hindsight is a wonderful thing.
In hindsight, Opsview would have always had access controls for objects at the role level – since roles also define which parts of the Opsview application you can get to, it would make sense to also put all the host and service objects into this definition.
(In our defence, we wanted to make it as obvious as possible for a contact when you were changing access information.)
The downside of our design decision many years ago is that Opsview administrators who have lots of their users – or contacts in Opsview terms – with the same sort of access and were having to change each user individually. This was painful and error prone if you had 40 “similar” users. Continue reading »
Tagged with: MSPs • multi-tenancy • Opsview
Feb 02
This post is going to explore how we can raise application alarms from Grails applications into an enterprise monitoring solution such as Opsview. These are known as Passive checks, as opposed to Active checks where Opsview is actively polling to check the state of a service.
Continue reading »
Tagged with: Grails • jalarm • java • Opsview
Jan 25
Opsview Community 3.11 - Free distributed monitoring
One of Opsview’s great features is distributed monitoring, which we’ve had for over 5 years now. From the web user interface, you can assign hosts to a slave system and Opsview will take care of all the configuration work for you: from the slave configuration files, to the slave results sent to the master, to the master configuration with freshness checking.
We do all the system integration work, so you don’t have to.
Continue reading »
Tagged with: distributed monitoring • Nagios • Opsview
Opsview is a leading Open Source application and network monitoring suite. Labs is where our engineers discuss new projects, new approaches and new frameworks they’re using.
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