Operations | Monitoring | ITSM | DevOps | Cloud

When it comes to data, let’s start with the obvious. Averages suck. As developers, we all know that percentiles are much more useful. Metrics like P90, P95, P99 give us a much better indication of how our software is performing. The challenge, historically, is how to track the underlying data and calculate the percentiles. Today I will show you how amazingly easy it is to aggregate and create SQL based percentile rollups with Postgresql and t-digest histograms!

In the field of open-source metrics and time series monitoring, it is quite clear today that Grafana is the most popular tool of choice. One of Grafana’s main advantages is its storage backend flexibility. It can support almost all the major time series datastores (Prometheus, InfluxDB, Elasticsearch, Graphite etc.), when each datastore has its own query language syntax, and slight differences in the actual Grafana UI and capabilities resulting from these differences.

This is a beginner’s tutorial for how to write static data in batches to InfluxDB 2.0 using these three methods. Before beginning, make sure you’ve either installed InfluxDB OSS or have registered for a free InfluxDB Cloud account. Registering for an InfluxDB Cloud account is the fastest way to get started using InfluxDB.

This is Part Two of Getting Started Tutorials for InfluxDB v2. If you’re new to InfluxDB v2, I recommend first learning about different methods for writing static data in batches to InfluxDB v2 in Part One of this Getting Started series. This is a beginner’s tutorial for how and when to write real-time data to InfluxDB v2. The repo for this tutorial is here. For this tutorial, I used Alpha Vantage’s free “Digital & Crypto Currencies Realtime” API to get the data.

Although network monitoring is an unenviable task, it must be done to sustain your network’s health. But what if you had a real-time report containing only key metrics, revealing how your network is doing without overloading you with information? This would (1) assure you that there are no aberrations in your network and (2) give you peace of mind.

The Apache HTTP server commonly known as Apache was officially released in 1995. Nowadays is one of the most popular HTTP servers on the World Wide Web. Many organizations such as Facebook, Cisco, IBM, and of course Apache Software foundation itself uses it. It's an open source web server, maintained by Apache Software Foundation. Apache is a cross-platform, even if the vast majority of server instances runs on Linux but some version also run on Windows.