Introduction to Time Series and InfluxDB

; Date: Tue May 30 2017

Tags: InfluxDB

Influx DB is an easy-to-use time-series database, that uses a familiar query syntax, allows for regular and irregular time series, and is part of a broad stack of platform components. This video goes over what Time Series Data is, a comparison of different Time Series Databases, and more.

Time series is always ordered by a time-stamp, meaning that each measurement occurred at a specific time and that the measurements are sorted by their time of occurrence.

A _regular time series_ has measurements occurring at a regular interval, whereas in an _irregular time series_ the measurements occur when they occur.

An irregular time series can be converted to a regular time series by summarizing. One summarizes a time series, producing a second time series -- for example if the original time series was stock trades over the day, a summarized time series might be the average for each 10-minute interval over the day.

  • Cassandra "Distributed columnar database" that can be used for time-series data storage. Have to implement things a regular time-series database gives for free. Ditto for MongoDB, REDIS, and Elastic
  • kx -- kx systems makes "KDB" database. Popular in Financial industry. Limitation of being an in-memory database and therefore cannot share data across machines.
  • OpenTSDB Strictly speaking not a database, since it is a layer on top of HBASE.
  • graphite A "legacy" system that's more for metrics and monitoring, rather than a generic time-series database.
  • riak
  • Prometheus Very strong in the DevOps world. Not very scalable.
A series is defined as all points with a common measurement and tagset

About the Author(s)

( David Herron : David Herron is a writer and software engineer focusing on the wise use of technology. He is especially interested in clean energy technologies like solar power, wind power, and electric cars. David worked for nearly 30 years in Silicon Valley on software ranging from electronic mail systems, to video streaming, to the Java programming language, and has published several books on Node.js programming and electric vehicles.