Kubernetes Podcast from Google Kubernetes History Inspector, with Kakeru Ishii
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Feb 13, 2025 Kakeru Ishii, an accomplished support engineer at Google and the mind behind the Kubernetes History Inspector (KHI), dives into the fascinating world of Kubernetes log visualization. He explains how KHI simplifies troubleshooting by creating timelines from logs. Kakeru also discusses the complexities of log correlation and the innovative use of WebGL in the tool's design. Plus, he touches on integrating AI to enhance log investigation, making the process faster and more efficient. A treasure trove of insights for anyone in the Kubernetes space!
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Complex GKE Workload Identity Issue
- Kakeru Ishu once handled a complex GKE workload identity issue with intermittent authentication errors.
- Troubleshooting involved correlating logs from various components, including customer pods, containerD, and a third-party security product.
Importance of Correlation in Troubleshooting
- The key to solving complex issues is correlating events across different system components.
- KHI helps visualize these correlations, especially in cases with transient or infrequent problems.
DAG-Based Log Parsing
- KHI uses a directed acyclic graph (DAG) to manage log parsing dependencies.
- This DAG-based system enables extensibility, allowing users to add custom log parsers for their specific needs.