Reading Maxim 1-Wire Temperature Sensors
One of my favorite sensors is the Maxim DS18*20 series, a variety of inexpensive temperature sensors which communicate over a “single contact serial interface” called 1-Wire. I’ve been integrating them into a variety of projects for years now, and they’ve always...
Release Announcement: InfluxDB Enterprise 1.7.8
A new maintenance release is available for InfluxDB Enterprise: InfluxDB Enterprise 1.7.8 release notes This maintenance release of InfluxDB Enterprise 1.7.8 includes all of the following fixes contained within InfluxDB 1.7.8 OSS: Removed stray debugging print lines which appeared in the...
Release Announcement: Telegraf 1.12.0
A new feature-bearing release for Telegraf is now available: Telegraf 1.12.0 release notes The binaries for the latest open source release can be found on our downloads page. Many thanks to the 50+ open source community members who contributed to this...
Red Flags of High Cardinality in Databases
High cardinality describes databases with distinct values. For instance, if every line item had a unique ID number, description, email address, etc. A column with many repeated values would be described as having low cardinality. Not everyone calculates cardinality in the same...
Telegraf Socket Listener Input Plugin
One of Telegraf’s biggest strengths is the large collection of plugins it offers that can be used to immediately to start collecting data from a variety of applications. This covers a lot of common infrastructure components like databases and web servers,...
Minimize Downtime in Production with Cloud-Based Distributed Load Testing
We all know that downtime costs money potentially thousands of dollars per minute for large enterprises not to mention the impact on brand reputation and customer satisfaction. While often overlooked, load testing is one way to help mitigate downtime risk by ensuring...
Using Flux to Write Data Out to SQL Data Stores
As discussed in multi-data source Flux, Flux can now get data out of RDBMs with SQL.from() and use it to perform deeper analysis. In many cases, results from crunching data lend themselves naturally to time series storage. In others, the results are...
Release Announcement: InfluxDB 1.7.8, Chronograf 1.7.14, Telegraf 1.11.5
New maintenance releases for InfluxDB OSS, Chronograf and Telegraf are available now. InfluxDB 1.7.8 release notes Chronograf 1.7.14 release notes Telegraf 1.11.5 release notes This maintenance release of InfluxDB OSS includes the following fixes: Removed stray fmt.Println which was spamming the log...
DZone | Red Flags of High Cardinality in Databases
Publication: DZone Title: Red Flags of High Cardinality in Databases Author: Katy Farmer Abstract: In this DZone article, InfluxData DevRel Katy Farmer discusses the concept of cardinality in databases. She starts by acknowledging the concept’s difficulty and providing an overview of what...
Hiding Complexity with Custom Functions: Calculating Heat Index
Have you ever watched the local weather or The Weather Channel and heard them announce the temperature, and then the “Heat Index”? Or how hot it feels outside? At least here in the United States, and especially in the South, it’s...