Articles by Christian Dahlqvist

Need to prevent duplicates in the Elastic Stack with minimal performance impact? We'll look at different options and provide some practical guidelines.

An introduction to Logstash that shows you how to work with it when developing a configuration for parsing and ingesting access logs into Elasticsearch.

Securing and controlling access to personal data is fundamental to GDPR. See how Elastic security features can help support a wide range of access policies.

Unsure about when to use Logstash or Elasticsearch ingest node? This blog post guides you through the things to consider when making that decision.

Experiencing bulk rejections leading to poor indexing performance? This blog post explains why Elasticsearch rejects requests and how to get around it.

If you are looking for practical guidelines around how many indices and shards to have in your cluster, this blog post will help you avoid common pitfalls.

In this blog post, we explore the on-disk storage requirements of data indexed using Filebeat modules and discuss further optimizations and related tradeoffs...