Kafka monitor lag. , email, Slack) Example: # Grafana alert No more juggling 7 CLI tools. That way we can gather Apache Kafka broker… Kafka is a powerful distributed streaming platform, but one common challenge developers face is consumer lag. g. Consumer lag may go unnoticed without alerts. Free Kafka UI and API for developers. In this guide, we’ll break down the essentials of Kafka monitoring, key metrics to track, and the best tools to keep your Kafka cluster running smoothly. Collect metrics for producers and consumers, replication, max lag, and more. Optimize your streaming applications with our step-by-step guide to monitoring Kafka consumer lag in Confluent Cloud, including key concepts like consumer groups, offsets, and Kafka Connect. Grafana, a popular open-source visualization and analytics platform, can be effectively used to monitor Kafka consumer lag. Information about Kafka Consumers groups and consumers LAG are retrieved using Kafka API. Datadog's out-of-the-box Kafka dashboard. jar server By default the application assumes the zookeeper is running localhost:2181 and kafka on localhost:9092 Learn how to monitor and analyze Kafka consumer metrics to enhance performance. Kafka Lag Exporter makes it easy to view the offset lag and calculate an estimate of latency (residence time) of your Apache Kafka consumer groups. Kafka consumer group lag is a key performance indicator of any Kafka-based event-driven system. Monitoring Kafka clusters is critical because: Kafka brokers can crash or become overloaded. Browse topics, monitor consumer groups, manage schemas and connectors. However, one common challenge encountered by Kafka users is Kafka lag, which refers to the delay between when messages are produced and when they are consumed. Datadog’s comprehensive Kafka dashboard displays key pieces of information for each metric category in a single pane of glass. , when the consumer lag is above a certain threshold) Specify notification channels (e. Learn about metrics from your Kafka brokers, producers, and consumers. sh --bootstrap-server localhost:9092 --describe --group group1 In this example i am saying show me all the topics that group1 is listening to and whats the lag, my consumer was down for last few min. Define conditions (e. ssh to a remote machine with kafka running on it, run kafka-consumer-groups, for multiple groups, collect the output, group by group and topic and finally print average and max lag. sh command to find out the lag. Learn how to diagnose and fix Kafka lag to keep your real-time streaming applications running smoothly and efficiently. Kafka is a powerful distributed … To keep your Kafka cluster running smoothly, you need to know which metrics to monitor. Discover the most common Apache Kafka® performance issues, including consumer lag, broker overload, & disk I/O bottlenecks, with actionable solutions. To create an alert: Create a panel with key Kafka metrics you want to monitor. Check Replication Lag Consumer lag indicates how far behind the sink connector is. For more information, see Monitor consumer lags. Learn to use built-in and third-party tools to ensure optimal system performance. name` config. There’s no need to reinvent the wheel, as there are powerful tools available to monitor every aspect of the Kafka ecosystem. It can run anywhere, but it provides features to run easily on Kubernetes clusters against Strimzi Kafka clusters using the Prometheus and Grafana A comprehensive guide to monitoring Apache Kafka with Prometheus and Grafana, covering JMX exporter configuration, key metrics, alerting rules, and dashboard creation for production Kafka clusters. This article explores Kafka consumer lag in detail, including causes, monitoring, and strategies to address it. d/ subdirectory. servers: test-cluster. Navigate to the Alert tab in the panel settings and configure your alert rules. and it has 4 pending messages so this is what i get Use Kafka’s built-in metrics (like records-lag-max) alongside tools such as Prometheus, Grafana, or Datadog to monitor lag continuously and trigger alerts when it exceeds defined thresholds. See key Kafka metrics to monitor: Learn how to monitor Kafka performance metrics and the best monitoring tools to maximize Kakfa performance. Hello there, I am trying to monitor Kafka Consumer Lag metrics using Dynatrace AM. Monitor Kafka Consumer Lag in Confluent Cloud Monitoring consumer lag in Apache Kafka® is essential to ensure the smooth functioning of your Kafka cluster. What is Kafka? Summary: This thread explains how to access Kafka consumer lag metrics in Dynatrace, including where the data comes from and how to visualise lag for troubleshooting stream delays. The server(s)/broker(s) that belong to this cluster lag-monitor: Demystifying Kafka Lag: A Step-by-Step Guide to Monitoring and Resolving Lag Issues Welcome to this guide on understanding and addressing Apache Kafka lag issues. docker exec kafka kafka-consumer-groups \ --bootstrap-server kafka:29092 \ --describe --all-groups This is the output: Important Columns: CURRENT-OFFSET LOG-END-OFFSET LAG What Should Be Validated Before Apache Kafka Apache Kafka is an open-source distributed event streaming platform used by thousands of companies for high-performance data pipelines, streaming analytics, data integration, and mission-critical applications. In this tutorial, we’ll build an analyzer application to monitor Kafka consumer lag. It answers the question: "How old is the data currently being processed by each consumer group?" — expressed as a time value in seconds, not a raw offset count. ( Kafka API Documentation) This monitoring tool is working for Kafka Broker version > 0. com:9092 # Required. A walkthrough of debugging a Kafka consumer lag incident with Conduktor Console. Discover best practices, key indicators, and tools to maintain stability and prevent bottlenecks. Currently Tested on: Python 3. Grafana allows you to create alerts based on the metrics data pulled by Prometheus. That way we can gather Apache Kafka broker… See also For an example that showcases how to monitor an Kafka client application and Confluent Cloud metrics, and steps through various failure scenarios to show metrics results, see the Observability for Kafka Clients to Confluent Cloud. However, I am facing challenges when exporting these metrics out of the box. It can run anywhere, but it provides features to run easily on Kubernetes clusters against Strimzi Kafka clusters using the Prometheus and Grafana Learn how to check, reduce and monitor Kafka Consumer Lag. Nov 10, 2025 · Kafka consumer lag — which measures the delay between a Kafka producer and consumer — is a key Kafka performance indicator. Comprehensive guide covering lag metrics, alerting strategies, and performance optimization techniques. Single-node failure during spike Redis node crash Partition imbalance Kafka consumer lag Excited to share the sixth blog of our journey to PGConf India "Oracle to PostgreSQL Migration: Testing and validation of CDC with Debezium & Apache Kafka" In this blog, Lokesh Mandyam walks Learn how to monitor Apache Kafka for performance and behavior with metrics, tools, and best practices. Consumer lag metrics quantify the difference between the latest data written to your topics and the data read by your applications. Complete tutorial on how to calculate and avoid it to ensure cluster performance. How do I monitor Kafka consumer lag and generate emails/alerts ?Below is my requirement I want to trigger an email when a messages older than 1 day on the topic . Master Kafka consumer lag monitoring with our step-by-step guide. I am using Spring boot micro ser 🕒 Kafka Lag: What It Is, Why It Matters and How to Deal with It… Kafka Lag Explained: How to Detect, Debug, and Eliminate Backlog in Real-Time Data Streams Kafka is the backbone of real-time … Apache Kafka Apache Kafka is an open-source distributed event streaming platform used by thousands of companies for high-performance data pipelines, streaming analytics, data integration, and mission-critical applications. Last week I wrote a post about how to Monitor Apache Kafka Using Grafana and Prometheus. The same name will be needed in `kafka. * Consumer lag metrics require ASCII-only consumer group names and have specific emission requirements. No credit card, fre. Kafka is a great solution for real-time analytics due to its high throughput and durability in terms of message delivery. This blog post will delve into the core concepts, provide a typical usage example, discuss common practices, and outline best practices for Kafka consumer lag monitoring with Grafana. To monitor consumer lag, you can use Amazon CloudWatch or open monitoring with Prometheus. Jun 24, 2025 · Kafka consumer group lag is a key performance indicator of any Kafka-based event-driven system. You can use kafka-consumer-groups. Kafka Consumer Lag Monitor A self-contained Python daemon that monitors Kafka consumer group lag across multiple topics and consumer groups. 9. Aug 5, 2025 · This guide walks you through consumer lag, offset management, real-world recovery strategies, AWS MSK metrics, and actionable best practices with visuals and examples. test. Learn how to monitor Apache Kafka for performance and behavior with metrics, tools, and best practices. Consumer lag refers to the delay between the production and consumption of messages in Kafka, which can have a significant impact on the overall performance of your system. Hiring: Data Engineer – Streaming & Snowflake Bangalore - Hybrid | 🕒 5–8 Years Experience We’re looking for a Data Engineer with strong expertise in real-time streaming pipelines using Excited to share the sixth blog of our journey to PGConf India "Oracle to PostgreSQL Migration: Testing and validation of CDC with Debezium & Apache Kafka" In this blog, Lokesh Mandyam walks This confirms Debezium is producing proper change events. Stream, connect, process, and govern your data with a unified Data Streaming Platform built on the heritage of Apache Kafka® and Apache Flink®. Kafka is a powerful distributed … Monitor Consumer Lag in Confluent Platform Consumer lag refers to the delay between the production and consumption of messages in Apache Kafka®, which can have a significant impact on the overall performance of your system. 0 and consumers that are using Consumer API which are committing the offset into Kafka The configuration file for the Kafka integration is in the kafka. This confirms Debezium is producing proper change events. bin/kafka-consumer-groups. This page breaks down the metrics featured on that dashboard to provide a starting point for anyone looking to monitor Kafka performance. Client tool that exports the consumer lag of Kafka consumer groups to Prometheus or your terminal - omarsmak/kafka-consumer-lag-monitoring Discover the top 13 Kafka monitoring tools for efficient observability, real-time insights, and optimal performance in your data streams. Learn about the key components of Kafka&'s architecture, common causes of consumer lag, monitoring techniques, and effective strategies to reduce lag. Running project java -jar target/kafka-lag-monitor*. Learn about Acceldata's unified dashboard for Kafka monitoring, which is a key solution for Kafka consumer lag monitoring. lag-monitor. Discover how AutoMQ enhances Kafka monitoring through OpenTelemetry Protocol (OTLP) for seamless integration with modern Conclusion Monitoring is crucial because it ensures the health, performance, and reliability of your Kafka platform, enabling you to quickly identify and resolve issues. Self-hosted via Docker. 3 and macos Installation Dive deep into the importance of managing consumer lag in Apache Kafka to maintain optimal performance and efficiency. Apache Kafka Monitoring These correspond to the "Kafka Lag Overview" section of the prophylactic check. This article explores the reasons behind Kafka lag, its impact on system performance, and practical methods to reduce or eliminate it. Learn how to monitor, diagnose, and reduce Kafka consumer lag. Consumer Group Lag: Monitor if services are keeping up with message volume using kafka_consumergroup_lag metrics Processing Times: Track strategy execution and Single View creation latencies Message Throughput: Measure I/O message rates for each service Resource Usage: Monitor CPU and memory utilization of service pods Since Kafka is designed for high-throughput, low-latency message ingestion, it powers a wide range of applications: fraud detection systems, IoT telemetry, streaming analytics, and more. docker exec kafka kafka-consumer-groups \ --bootstrap-server kafka:29092 \ --describe --all-groups This is the output: Important Columns: CURRENT-OFFSET LOG-END-OFFSET LAG What Should Be Validated Before Demystifying Kafka Lag: A Step-by-Step Guide to Monitoring and Resolving Lag Issues Welcome to this guide on understanding and addressing Apache Kafka lag issues. 11. Why Kafka monitoring matters? Explore how tracking Kafka metrics ensures high availability, low consumer lag, and optimal resource use while maintaining smooth cluster performance. d/ subdirectory, and the Kafka consumer integration's configuration file is in the kafka_consumer. PER_BROKER Level monitoring When you set the monitoring level to PER_BROKER, you get the metrics described in the following table in addition to all the DEFAULT level metrics. Kafka group lag aggregate monitor This utility can currently Accept kafka-consumer-groups output like file from stdin and print aggregated output to stdout. clusters[*]. They are free. 0ocafi, fpepb, eebg, vtipr2, wdeto, 6cdio, syxlhj, 83ljs, 2m1h7, gfniu3,