thanos-io / thanos

Troubleshooting and Debugging - thanos-io/thanos

Troubleshooting and Debugging Common Issues with Thanos

Thanos is an open-source, highly available Prometheus setup with long-term storage capabilities. This guide covers common issues and techniques for diagnosing problems with Thanos, using the official documentation and code snippets from the project’s GitHub repository (https://github.com/thanos-io/thanos/).

  1. Troubleshooting for Dev Workflow

Thanos provides a troubleshooting guide for the dev workflow in its documentation (https://thanos.io/v0.3/troubleshooting/troubleshooting.md). This guide covers common issues and solutions related to Thanos components, such as store, query, and rule.

Example:

  • If the Thanos query component is not returning the expected results, check the logs for error messages and verify the component’s configuration.
  1. Changelog

The Thanos changelog (https://thanos.io/v0.36/thanos/changelog.md) provides a list of changes, fixes, and improvements in each Thanos release. This information can help diagnose issues related to specific releases.

Example:

  • If you encounter a deadlock issue with the store-gateway component, upgrading to the latest version of Thanos may resolve the issue (#6086).
  1. Getting Started

The Thanos documentation (https://thanos.io/v0.36/thanos/getting-started.md) provides a guide for setting up and deploying Thanos. This guide includes information on building and deploying the Thanos binary, as well as troubleshooting tips.

Example:

  • If you encounter issues with the Thanos build process, consult the Makefile and the getting started guide for solutions.
  1. Tools

Thanos provides a set of additional CLI, short-living tools for development and debugging purposes (https://thanos.io/v0.36/thanos/components/tools.md).

Example:

  • The thanos tools check command can be used to validate the Thanos configuration and detect potential issues.
  1. Community

Thanos has an active community of developers and users who can provide support and guidance for troubleshooting and debugging issues. The community channels are listed in the Thanos documentation (https://thanos.io/v0.36/thanos/community.md).

Example:

  • If you encounter an issue with Thanos, consider reaching out to the community for help through the Slack or issue tracker channels.
  1. Tracing

Thanos provides a tracing guide (https://thanos.io/v0.16/thanos/tracing.md) that covers how to enable and use tracing in Thanos. Tracing can help diagnose issues with Thanos components and identify performance bottlenecks.

Example:

  • To enable tracing in Thanos, consult the tracing guide and update the Thanos configuration accordingly.
  1. Coding Style Guide

Thanos provides a coding style guide (https://thanos.io/contributing/coding-style-guide.md) that can help diagnose issues related to code quality and style.

Example:

  • If you encounter issues with the Thanos codebase, consult the coding style guide for guidance on how to resolve the issues.
  1. Version

Thanos provides a VERSION file (https://github.com/thanos-io/thanos/blob/main/VERSION) that lists the current version of Thanos. This information can help diagnose issues related to specific releases.

Example:

  • If you encounter an issue with a specific version of Thanos, consult the VERSION file and the changelog for information on that release.

In conclusion, Thanos provides a variety of resources for troubleshooting and debugging issues. By consulting the official documentation, code snippets, and community resources, you can diagnose and resolve issues with Thanos.