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This article introduces the open‑source Java diagnostic tool Arthas, explains how to install and run it, showcases common use cases such as CPU spike detection, thread‑pool monitoring, deadlock analysis, and provides practical command examples and code snippets for effective production debugging.
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This guide introduces Alibaba's open‑source Arthas tool for Java, explains when to use it, shows how to install it, and provides detailed examples of its most useful commands such as stack, jad, sc, watch, trace, jobs, logger, dashboard, and redefine for live JVM debugging and performance analysis.
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Vivo’s vmonitor system replaces its legacy RabbitMQ‑based pipeline with an HTTP‑driven collector and gateway, stores minute‑level JVM, system, and business metrics in a customized OpenTSDB on HBase, adds precise floating‑point handling and null‑aware aggregation, buffers data in Redis, and provides multi‑dimensional alerts comparable to Zabbix, Open‑Falcon, and Prometheus.
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This article introduces Alibaba’s open‑source Java diagnostic tool Arthas, explains how to install and use it for JVM monitoring, class loading inspection, and performing hot code updates via memory compilation and the redefine command, while noting its limitations.
During a weekend on‑call shift a Java detection service repeatedly timed out due to network packet loss, leading to massive CPU usage and full GC cycles caused by a memory leak in a Map that stored request results, which was finally diagnosed and resolved using JVM tools like jstat, jstack, and MAT.