Adding Test Data

January 17, 2016 by
Part 12 of 35 in the Complete Guide to Elasticsearch series

Now that we have added mappings to our index, let’s add some test data to it so that we have some data to search in the remainder of the series. To do this, I will open up the terminal and issue an HTTP request with cURL, where I will be importing a JSON file. You… read more

Adding Mappings

January 17, 2016 by
Part 11 of 35 in the Complete Guide to Elasticsearch series

Now we are going to add a mapping to our ecommerce index. To do that, we are first going to remove the index and add it once again with the mapping. The reason why we are doing this, is that if you have data in an index, then you need to create a new index and… read more

Meta Fields

January 17, 2016 by
Part 10 of 35 in the Complete Guide to Elasticsearch series

Now that we have taken a look at field data types, it is time to talk about meta fields. Introduction to Meta Fields So, just what are meta fields? Each document that is indexed in Elasticsearch has metadata associated with it. The names of these fields are prefixed with an underscore, and some of them… read more

Field Data Types

January 16, 2016 by
Part 9 of 35 in the Complete Guide to Elasticsearch series

Having introduced mapping, we will now go into a bit of more detail about data types. There are four categories of data types in Elasticsearch, namely core data types, complex data types, geo data types and specialized data types, which we will all take a look at now. Feel free to skip this article and move… read more

Introduction to Mapping

January 16, 2016 by
Part 8 of 35 in the Complete Guide to Elasticsearch series

In this part of the series, we will be talking about mapping in Elasticsearch. I will introduce mapping as well as cover dynamic and explicit mapping. What is Mapping in Elasticsearch? Like I briefly mentioned in the article about Elasticsearch terminology, mapping describes how documents and their fields are indexed and stored. This typically involves defining the… read more

Deleting an Index

January 16, 2016 by
Part 7 of 35 in the Complete Guide to Elasticsearch series

Now that we have created an index, let’s see how we can delete an index. In fact, we are going to delete the index that we created in the previous article in this series and add it again later. Open the Sense plugin for Kibana and simply issue the below request to delete the index. DELETE /ecommerce Let’s ensure… read more

Google Builds Chromecast Directly into Chrome

January 16, 2016 by

It has previously only been possible to cast a browser window from Chrome onto a Chromecast by using a browser plugin for the Chrome browser. For people who want to cast their browser onto a TV or similar, these days are soon over, according to a Google+ post. The feature will be built directly into… read more