klotz: observability*

Observability refers to the ability to understand the internal state of a system by observing its output. It involves monitoring, logging, and tracing various other forms of data collection to gain insights into the system's behavior, performance, and health. In the context of cloud engineering, observability is crucial for maintaining the efficiency and reliability of distributed systems, as it helps identify and diagnose issues, optimize performance, and ensure security. Observability tools, such as Splunk, Honeycomb, and OpenTelemetry, are used to collect and analyze metrics, logs, and traces, enabling capacity planning, root cause analysis and incident response.

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  1. Elastic's new Streams feature uses AI to transform noisy logs into actionable insights, helping SREs diagnose and resolve issues faster. The article discusses how AI is poised to become the primary tool for incident diagnosis and address skill shortages in IT infrastructure management.

    Here's a breakdown of the technical details:

    * **Problem:** Modern IT (especially Kubernetes) generates massive amounts of log data (30-50GB/day per cluster) making manual analysis for root cause identification slow, costly, and prone to errors. Existing observability tools often treat logs as a last resort.
    * **Elastic's Solution (Streams):**
    * **AI-powered Parsing & Partitioning:** Automatically extracts relevant fields from raw logs, reducing manual effort.
    * **Anomaly Detection:** Surfaces critical errors and anomalies from logs, providing early warnings.
    * **Automated Remediation:** Aims to not only identify issues but also suggest or automatically implement fixes.
    * **Workflow Shift:** Streams aims to move away from the traditional observability workflow (metrics -> alerts -> dashboards -> traces -> logs) to a log-centric approach where AI proactively processes logs to create actionable insights.
    * **Future Direction:** The article highlights the potential of **Large Language Models (LLMs)** to further automate observability, including generating automated runbooks and playbooks for remediation. LLMs could also help address the shortage of skilled SREs by augmenting their expertise.
    * **Integration:** Streams is integrated into Elastic Observability.
  2. This article details how Nubank built its own in-house logging platform to address issues of cost, scalability, and control over their logging infrastructure. Initially reliant on a vendor solution, they found costs rising unpredictably and experienced limitations in observability and data retention.

    To solve this, Nubank divided the project into two major steps: **The Observability Stream** (ingestion and processing) and the **Query & Log Platform** (storage and querying).

    * **Observability Stream:** Fluent Bit for data collection, a Data Buffer Service for micro-batching, and an in-house Filter & Process Service.
    * **Query & Log Platform:** Trino as the query engine, AWS S3 for storage, and Parquet for data format.

    The new platform currently ingests 1 trillion logs daily, stores 45 PB of searchable data with a 45-day retention, and handles almost 15,000 queries daily. Nubank reports the platform costs 50% less than comparable market solutions while providing them with greater control, scalability, and the ability to customize features. The project underscored Nubank's value of challenging the status quo and leveraging a combination of open-source and in-house development.
  3. This article explores how prompt engineering can be used to improve time-series analysis with Large Language Models (LLMs), covering core strategies, preprocessing, anomaly detection, and feature engineering. It provides practical prompts and examples for various tasks.
  4. A study by ClickHouse found that large language models (LLMs) aren't currently capable of replacing Site Reliability Engineers (SREs) for incident root cause analysis, despite advancements in AI. LLMs can be helpful tools, but require human oversight.
  5. Google Cloud has announced native support for the OpenTelemetry Protocol (OTLP) in its Cloud Trace service, allowing developers to send trace data directly using OTLP and eliminating the need for vendor-specific exporters. This includes increased storage limits for attributes and spans.
  6. Replays of the .conf25 Global Broadcast sessions, including the Welcome Keynote, Product Keynote, and various sessions covering topics like AI, security, observability, and Splunk platform updates.
  7. TraceRoot.AI is an AI-native observability platform that helps developers fix production bugs faster by analyzing structured logs and traces. It offers SDK integration, AI agents for root cause analysis, and a platform for comprehensive visualizations.
  8. TraceRoot accelerates the debugging process with AI-powered insights. It integrates seamlessly into your development workflow, providing real-time trace and log analysis, code context understanding, and intelligent assistance. It offers both a cloud and self-hosted version, with SDKs available for Python and JavaScript/TypeScript.
  9. The article discusses the emergence of 'agentic traffic' โ€“ outbound API calls made by autonomous AI agents โ€“ and the need for a new infrastructure layer, an 'AI Gateway', to govern and secure this traffic. It outlines the components of an AI Gateway and the importance of security, compliance, and observability in managing agentic AI.
  10. The company's transition from fragmented observability tools to a unified system using OpenTelemetry and OneUptime dramatically improved incident response times, reducing MTTR from 41 to 9 minutes. By correlating logs, metrics, and traces through structured logging and intelligent sampling, they eliminated much of the noise and confusion that previously slowed root cause analysis. The shift also reduced the number of dashboards engineers needed to check per incident and significantly lowered the percentage of incidents with unknown causes.

    Key practices included instrumenting once with OpenTelemetry, enforcing cardinality limits, and archiving raw data for future analysis. The move away from 100% trace capture and over-instrumentation helped manage data volume while maintaining visibility into anomalies. This transformation emphasized that effective observability isn't about collecting more data, but about designing correlated signals that support intentional diagnosis and reduce cognitive load.

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