A particular client who operates as an ISP for its customers and corporate departments requested the ability to summarize and display, in convenient graphs, a few metrics related to the bandwidth delivered on switch ports, where the available gateways provide connectivity. The first activity I undertook was to obtain the MIB files and OIDs from…
Read MoreBy default all metrics in InfluxDB are stored forever, but for certain metrics we need to store them for a much shorter time span. One example is when we’re receiving very large amounts of raw data, when we’re much more interested in derived characteristics of that raw data. In this blog we’ll discuss how to…
Read MoreInfluxDB is the database used in NetEye for saving performance data. It guarantees graphic visibility of the data (thanks to the Grafana frontend) and it is very important that the data stored is useful. I’ll give you an example of how simple it can be to produce obsolete data in Influx: Suppose I create a…
Read MoreDuring the course of a NetEye installation, a wide range of performance data is collected. From latency metrics of ping checks, to the saturation data of disks and memory units, to the collection of utilization metrics of various kinds. For all of this data we’ve adopted the open source time series database InfluxDB. The time-aligned…
Read MoreIf you’ve ever had cardinality problems with InfluxDB, you might have discovered that a tag is the likely culprit. Well done! But now your next step is getting rid of that tag, and that’s when you’ll realize that in a time series database, tags play an important role in indexing. Because dropping tags is rather complicated,…
Read MoreChangeLog: – fixed bug: Wrong logrotate settings cause HUGE logfile (NIFDB-2)
Read MoreChangeLog: – fixed bug: Wrong logrotate settings cause HUGE logfile (NIFDB-2)
Read MoreChangeLog: – fixed bug: Wrong logrotate settings cause HUGE logfile (NIFDB-2)
Read MoreRoughly one year ago I started working on a set of backup scripts for NetEye with the following requirements: Cluster support without standby Configuration backups InfluxDB backup MariaDB backup In this post I’ll focus on the journey through my MariaDB backup implementation. Backing up MariaDB is usually a simple task: you run the mysqldump command…
Read MoreAs did for the last year edition, our DevOps team participated at InfluxDays, a conference organized by InfluxData and focused on time series data. We were really looking at the event with excitement, for all the new features InfluxData is putting into the new InfluxDB 2.0. So, apart from grabbing a very nice t-shirt, we…
Read MoreScenario NetEye 4 is a comprehensive monitoring platform which natively supports Icinga 2 checks on remote hosts and devices. Several Icinga 2 checks support an historical view of the status. An example is the firewall interface performance status below, which displays a Performance Graph: Getting a better overview All the graph data generated by the…
Read MoreOn 14.08.2024 ntopng released its latest version 6.2. I’d like to use this post to emphasize some of the key innovations it brings. There were many changes and bug fixes in this release. Some major improvements and enhancements are as follows: Furthermore, ntopng is now cloud-aware. Over the ntop cloud you’ll be able to control…
Read MoreOpenShift already has a built-in monitoring suite with Prometheus, Grafana, and Alertmanager. This is all well and good, but what if organizations want to monitor their entire infrastructure, integrating all monitoring results under one umbrella? In this case, it’s necessary to send the metrics somehow from OpenShift to NetEye. In this tutorial, I’ll show you…
Read MoreAs you may have noticed from recent posts from some of my colleagues about “Boosting NetEye CI Speed: Test Parallelization” or “Speeding up the NetEye CI Testing Phase“, we are improving our CI in order to have a reliable, fast system that is able to test all the features we implement in NetEye 4. As…
Read MoreWe fixed a bug in Icinga2 that caused a huge increment of the InfluxDB disk usage. Another bug that was fixed was causing smsd configuration to be lost during the upgrade. Finally, in Tornado it is now possible to correctly insert conditions of type regex in node filters. Updated packages We updated the following packages:
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