We’re excited to announce the release of the Field Stats API plugin for Elasticsearch. The Field Stats API used to be present from Elasticsearch 1.6 to 5.6, to provide efficient statistics for fields of each index. For example, the minimum […]
Elasticsearch Ingest Node vs Logstash Performance
Starting from Elasticsearch 5.0, you’re able to define pipelines within it that process your data, in the same way you’d normally do it with something like Logstash. We decided to take it for a spin and see how this new […]
Recipe: How to integrate rsyslog with Kafka and Logstash
This recipe is similar to the previous rsyslog + Redis + Logstash one, except that we’ll use Kafka as a central buffer and connecting point instead of Redis. You’ll have more of the same advantages: rsyslog is light and crazy-fast, […]
Logstash Tutorial: A Quick Getting Started Guide
Looking to learn about Logstash as quickly as possible? This article is for you: we’ll install Logstash and push some Apache logs to Elasticsearch in less than 5 minutes.
Monitoring Audit Logs with auditd and Auditbeat
The Linux Audit framework is a kernel feature (paired with userspace tools) that can log system calls. For example, opening a file, killing a process or creating a network connection. These audit logs can be used to monitor systems for […]
Garbage Collection Settings for Elasticsearch Master Nodes
Elasticsearch comes with good out-of-the-box Garbage Collection settings. So good in fact that the Definitive Guide recommends not changing them. While we agree that most use-cases wouldn’t benefit from GC tuning, especially when it turns out there simply isn’t enough […]
IoT: Air Pollution Tracking with Node.js, Elastic Stack, and MQTT
What can you do with a couple of IoT devices, Node.js, Elasticsearch, and MQTT? You can put together your own Internet of Things setup for measuring air pollution, like I have. In this blog post, I’ll share all the details […]
Elasticsearch online training classes in 2018
Since we’ve been working with Elasticsearch on a daily basis for more than 7 years now and know so much about it, we like helping others improve their knowledge of these technologies, not only by sharing our knowledge in meetups […]
Logagent Meets Apache Kafka
This is a guest post from Filippo Balicchia. Filippo contributed Logagent plugins for Apache Kafka the details of which he is sharing in this post. Filippo is a software engineer and a passionate coder interested in distributed and cloud technologies, […]