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Tag Archives: Elasticsearch

A Simple Way to Index Java Beans in Elasticsearch

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When it comes to data stores Java programmers are used to working with Java beans that are magically persisted. Solutions like Hibernate and the JPA specification for relational data stores or Morphia and Spring Data MongoDB are popular examples. Developers working with Elasticsearch sometimes have the same desire – pass a Java bean and have it indexed automatically. There is ...

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Logging Requests to Elasticsearch

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This is something I wanted to write down for years but never got down to completing the post. It can help you a lot with certain Elasticsearch setups by answering two questions using the slow log. Is my application talking to Elasticsearch? What kind of queries are being built by my application? A while ago I helped a colleague on ...

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Mining Mailboxes with Elasticsearch and Kibana

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In a previous post I had mentioned that the trio of Logstash, Kibana and Elasticsearch (ELK stack) is one of the most popular open source solutions for not only logs management but also data analysis. In this post I will demonstrate how ELK can be used to effectively and efficiently perform big data analysis. As a reference let’s take some ...

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Anatomy Of Setting Up An Elasticsearch N-Gram Word Analyzer

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To say that n-grams are a massive topic would be an understatement. Do a quick search and you will find yourself staring down volumes of information on linguistics and language models, on data mining, or on the implication of the breakdown of specific proteins on the decline of debutante culture. Okay, I’m kidding about that last one. But if you ...

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Critical HL7 Usecases With Camel, ActiveMQ, Elasticsearch

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HL7 over MLLP is a very common transport mechanisms for systems that can speak the HL7 protocol format. JBoss Fuse is a very powerful microservices-style integration platform and has a proven track record for building flexible, resilient, highly available integration scenarios for critical health-care providers. Additionally, replacing legacy vendors like SeaBeyond on JCAPS is the sweet spot for these types ...

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elasticsearch for beginners part 1: how to create a document

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In this Elasticsearch for beginners series, I will give you basics of Elasticsearch with real world examples. The first part is for teaching you how to create -that is index- a document in Elasticsearch. I assume you managed to download the latest Elasticsearch zip to your local, extracted it and after that installed the marvel plugin and started a new ...

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Getting Started with ELK Stack on WildFly

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Your typical business application would consist of a variety of servers such as WildFly, MySQL, Apache, ActiveMQ, and others. They each have a log format, with minimal to no consistency across them. The log statement typically consist of some sort of timestamp (could be widely varied) and some text information. Logs could be multi-line. If you are running a cluster of servers then these logs ...

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5 Reasons You Should Stop Hosting Your ELK Stack Locally

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The hosted ELK stack: Centralizing and managing your logs for fun and profit You don’t look a gift-horse in the mouth. Especially if it’s not a horse and actually an elk. It will poke you with its antlers. Or get drunk on fermented apples and trash your backyard. That’s an occupational hazard we’re willing to accept though so let’s take ...

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