Category Archives: Elasticsearch

Amazon ES – Secure your cluster from anonymous users! #2


In the previous blog, we have learned how to create a domain on Amazon ES and also how to create an index using Curl on the cluster. Now, let’s just look how we can control access to Amazon ES Domain. … Continue reading

Posted in Amazon, Amazon EC2, AWS, AWS Services, database, Elasticsearch, fulltextsearch, knoldus, NoSql, sbt, Scala, Tutorial | Tagged , , , , , | Leave a comment

Amazon ES – setting up the cluster! #1


Amazon Web Services (AWS) is a cloud services platform, providing compute power, database storage, content delivery, security options and other functionality to allow businesses to build sophisticated applications with increased flexibility, scalability and reliability. Amazon Elasticsearch is one of the … Continue reading

Posted in Amazon, AWS, AWS Services, cluster, database, Elasticsearch, fulltextsearch, knoldus, NoSql, Tutorial | Tagged , , , , , | 3 Comments

Exploring JEST: Java HTTP REST Client


Elasticsearch is a real-time distributed and open source full-text search and analytics engine. To integrate Elasticsearch to our application, we need to use an API. Elasticsearch gives us two ways, REST APIs, and Native clients. It’s easy to get confused … Continue reading

Posted in Elasticsearch, knoldus, NoSql, sbt, Scala | Tagged , , , , , | Leave a comment

Java High-Level REST Client – Elasticsearch


Elasticsearch is an open-source, highly scalable full-text search and analytics engine. Using this, you can easily store, search, and analyze a large amount of data in real time. Java REST client is the official client for Elasticsearch which comes in … Continue reading

Posted in database, Elasticsearch, fulltextsearch, knoldus, NoSql, sbt, Scala | Tagged , , , | 2 Comments

Deploying a 2 node Elasticsearch cluster on ec2 instance.


In this blog we will focus on two major things : 1). Steps required to create a two node elasticsearch (v5.2 released on 31.Jan.2017) cluster on Linux instances (with CentOs as the default OS). 2). Attaching additional volume to the … Continue reading

Posted in AWS, Elasticsearch, Scala | 3 Comments

Neo4j vs ElasticSearch & Full Text Search In Neo4j


Hello Graphistas, Are you missing this series 🙂 ? Welcome back again in the series of Neo4j with Scala 😉 . Let’s start our journey again. Till now we have talked and learnt about the use of Neo4j with Scala … Continue reading

Posted in database, Elasticsearch, fulltextsearch, graph, Scala | Tagged , , , | 9 Comments

Autocomplete using Elasticsearch


You would have seen in a movie data store like IMDB, Whenever a user enters ‘g’, the search bar suggests him that you might be looking for gone girl or all the movies that have ‘g’ in them. This is … Continue reading

Posted in Elasticsearch, Scala | Tagged , , , , , , , , | 3 Comments

Meetup: Stream Processing Using Spark & Kafka


Knoldus organized a Meetup on Friday, 9 September 2016. Topics which were covered in this meetup are: Overview of Spark Streaming. Fault-tolerance Semantics & Performance Tuning. Spark Streaming Integration with  Kafka. Meetup code sample available here Real time stream processing … Continue reading

Posted in Apache Kafka, apache spark, Best Practices, big data, Elasticsearch, Scala, Spark, Streaming | 1 Comment

Building Analytics Engine Using Akka, Kafka & ElasticSearch


In this blog , I will share my experience on building scalable, distributed and fault-tolerant  Analytics engine using Scala, Akka, Play, Kafka and ElasticSearch. I would like to take you through the journey of  building an analytics engine which was primarily … Continue reading

Posted in Akka, akka-http, Amazon, Amazon EC2, Apache Kafka, Architecture, AWS, AWS Services, Batch, Best Practices, big data, Cassandra, database, Elasticsearch, Java, Non-Blocking, NoSql, Reactive, S3, Scala, Streaming, Web | 10 Comments

Introduction to ElasticSearch in Scala


Elasticsearch is a real-time distributed search and analytics engine built on top of Apache Lucene. It is used for full-text search, structured search and analytics. Lucene is just a library and to leverage its power you need to use Java. … Continue reading

Posted in Elasticsearch, Scala | Tagged , , | 5 Comments