In my previous blog, I have explained about basic aggregation. Now, let us pick the metrics aggregation and see how we can create these types of aggregations. Metrics aggregation are those aggregation where we apply different types of metrics on fields of Elasticsearch documents like min, ...

Aggregations provide us the option to group and extract statistics from our data. aggregations give the insight of our data and can be used for a wide range of problems like we can use Elasticsearch aggregations for creating a recommendation engine through which we can implement the recommendatio...

A slow application can trigger a series of escalating calls through an IT organization and whenever the application starts giving issues, we need to troubleshoot it and fix it as soon as possible. In the process, our log files are normally among the first places where we go when we start the ...

Next blogs on Elasticsearch of this series:Elasticsearch Installation and Configuration on Ubuntu 14.04...

In my last blog I have explained basic Elasticsearch queries using which we can create basic search queries. Now in this blog I will explain advanced search queries using which we can construct more complex queries like boolean queries, wildcard queries etc. So lets start to ...

Bucket aggregation is like a group by result of RDBMS query where we group the result with certain field. In case of Elasticsearch we use to bucket data on the basis of certain criteria. In metrics aggregations we can calculate metrics on a fields while in bucket we don't perfo...

Elasticsearch provides extensive REST APIs to integrate, query and manage the data. In this blog I will discuss some of the main APIs which we can use regularly from an extensive list of REST APIs.We can do many things using Elasticsearch REST APIs like:Check ou...

Day by day the volume of data is increasing as we are moving towards the digital age and transforming things into Internet of things. Take a simple example of smart watch what is does, it measures the steps, BP, heart rate etc and pushing to a server from where we can access our heath...

I am taking the example of a bqstack website which is build using MySQL database. So basically what I am going to do is configure Logstash using JDBC input plugin to connect with MySQL database. After connecting to MySQL database I will run the query to fetch the records from database...

In this blog, I am going to cover the process of configuring Jenkins after installing it to automate the process of code deployment on a web server. I will set the Jenkins scheduler for 1 minute which will keep on checking th...