Elastic{ON} Tour London 2017

Developer notes

Published on Jun 22, 2017

Reading time: 3 minutes.

Elastic{ON} Tour 2017 was held today in London at The Brewery, and I had the chance to attend it. The Elastic team has done a great job in organising the event, and I would like to thank them for the beautiful day. The location and catering were great, and so was the training Lab on Timelion, pronounced “Timeline”, is a Kibana module that helps to visualise time series data.

The day started with an introduction to Elastic, followed by an hands-on training on Time Series with Timelion for about 45 minutes.


The lab material included a dataset of ~300,000 Apache logs entries. In the example above, we are comparing iOS vs. Android hits during the last 30 days with an interval of 1d.

The query below instead plots the average amount of data downloaded from Great Britain in comparison with Ireland, over the past month.


After the lab, the Founder & CEO, Shay Banon, took the stage and talked about their exciting journey, starting as a distributed search engine ending becoming not only that. Today, Elastic is the most popular Search and Logging solution for modern software applications.

My goal for today was to take home some general knowledge about Elasticsearch and its stack but also put my hands into the product during the lab.

Through the talks I took some notes that I think might be useful to share:

The Elastic Stack

Four open-source components make the suite:

  • Kibana - doing the data visualisation job
  • Elasticsearch - distributed, JSON-based search and analytics engine
  • Logstash - events and logs collection pipeline
  • Beats - lightweight agents that send data into elastic



  • The first version of Elasticsearch, 0.40, was published in August 2010.
  • The latest version is 5.4 but 6.0 will be released soon.
  • The search engine of Elasticsearch is based on Apache Lucene.
  • Elasticsearch is developed in Java.
  • Kibana was originally written in Angular JS (1.4.7) and earlier this year they have migrated to React 15.
  • The company has a distributed team in 40 countries and promotes remote work.
  • Main Headquarters are in Amsterdam πŸ‡³πŸ‡±, San Francisco πŸ‡ΊπŸ‡Έ and London πŸ‡¬πŸ‡§.

Sources: Ask me Anything stand at the conference Wikipedia.

Elastic Cloud

Elastic Cloud is the official hosted solution for Elasticsearch and Kibana. Although many of you may be familiar with AWS Elasticsearch, the two have a very different offering.

I won’t go into many details as offers change all the time but what the Elastic team has told me is that AWS is 3-4 months behind with version updates and you are generally more limited in the configuration of the product.

I think it worths giving it a try also because they offer a free trial for 14 days with no credit card required (❀️).

Machine Learning 🍭

Earlier this year Elastic has announced the first release of machine learning features for the Elastic Stack. At the moment the main use case is anomaly detection but I am sure in the future we will see much more.

Please note that this feature is part of x-pack, an enterprise extension that bundles advanced features such as security, alerting, monitoring, reporting, etc.

Apache Kafka

The company founded by the creators of Apache Kafka, confluent, was one of the sponsors today. I met them, and thanks to a quick chat I found out a bit more about it. Apache Kafka is an open-source streaming platform. A typical use case is the publish / subscribe, but what caught my attention is the possibility of using Kafka as messaging bus in a microservices architecture. Find below, a couple of interesting links about this.


Want to know more about Elastic? Here some useful (I hope) links:

Work with me

By the way, if you also enjoy attending conferences while working on exciting projects check out our vacant position for a Frontend Developer at Activate.

Thanks for reading!