Monitoring applications that you’ve deployed to production is non-negotiable if you want to be confident in your code quality. One of the best ways to monitor application behavior is by emitting, saving, and indexing log data. Logs can be sent to a variety of applications for indexing, and you can then refer to them when problems arise.

In the rapidly evolving landscape of modern tech, system reliability has become a critical factor for businesses to succeed. To ensure the stability and performance of complex distributed systems, companies are relying on observability—a concept that isn’t synonymous, but instead goes beyond traditional monitoring approaches.

The Elasticsearch reindex API copies data from one index to another. You can use reindex to change the index mapping, copy data to another cluster, or copy only a subset of data to another index. For example, suppose you want to reindex all the data in index1 into index2. In that case, you run the following example in Kibana dev tools: In this article, we dive into some common issues solved by reindexing as well as troubleshooting issues with reindexing itself.

Because of where you’re reading this post, I’m going to assume you already know that Grafana is a great tool for visualizing and presenting metrics, and persisting them on dashboards. Ever since the Grafana Loki query builder for LogQL was introduced in 2022, it’s been easy to display and visualize logs, too.

As we’ve shown in previous blogs, Elastic® provides a way to ingest and manage telemetry from the Kubernetes cluster and the application running on it. Elastic provides out-of-the-box dashboards to help with tracking metrics, log management and analytics, APM functionality (which also supports native OpenTelemetry), and the ability to analyze everything with AIOps features and machine learning (ML).

AppSignal Logging gives you 360-degree insights into your application's performance. To help give you those insights, we wanted to ensure our logging solution allowed you to send AppSignal your logs your way. You can now use Winston transport to send your Node.js application's logs directly to AppSignal and take advantage of having access to all of your application's performance logs and metrics in one place.

Coralogix is a full-stack observability platform that effortlessly processes logs, metrics, traces, and security data. More specifically, logs in Coralogix are processed in larger volumes than almost any other observability provider out there, making a log’s life cycle unique. This article will examine the different stages of logs and help you better understand one of the most sophisticated telemetry processing architecture on the market.