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Simulating an Elasticsearch Ingest Node pipeline

Indexing document into your cluster can be done in a couple of ways: using Logstash to read your source and send documents to your cluster; using Filebeat to read a log file, send documents to Kafka, let Logstash connect to Kafka and transform the log event and then send those documents to your cluster; using […]

Writing less code

Have you had that feeling that you have to write too much code to build simple functionality? Some things just feel repetitive, they feel you should be not have to write them yourself, instead a framework should make your life easier. Recently I’ve been building a project in Java/Spring, and after some time I started wondering […]

Measure the Adequacy of Android Unit Tests with Mutation Testing

Measure the Adequacy of Android Unit Tests with Mutation Testing

Unit tests are an essential tool in a trustworthy test suite for an Android application or any other software system for that matter. But unit tests themselves doesn’t guarantee that the right features or requirements are tested, even if you did a thorough effort to cover as much code as possible in your entire code […]

Collecting data from a private LoRaWAN sensor network into Elastic

Collecting data from a private LoRaWAN sensor network into Elastic

Introduction to LoRaWAN and ELK Why LoRaWAN, and what makes it different from other types of low power consumption, high range wireless protocols like ZigBee, Z-Wave, etc … ? LoRa is a wireless modulation for long-range, low-power, low-data-rate applications developed by Semtech. The main features of this technology are the big amount of devices that […]