未显示 Flink 延迟指标 [英] Flink latency metrics not being shown

问题描述

在本地环境中运行 Flink 1.5.0 时，我试图通过 REST 获取延迟指标(类似于 http://localhost:8081/jobs/e779dbbed0bfb25cd02348a2317dc8f1/vertices/e70bbd798b564e0accodea50>) 但没有任何对 latency 的引用.

While running Flink 1.5.0 with a local environment I was trying to get latency metrics via REST (with something similar to http://localhost:8081/jobs/e779dbbed0bfb25cd02348a2317dc8f1/vertices/e70bbd798b564e0a50e10e343f1ac56b/metrics) but there isn't any reference to latency.

所有这些都在启用延迟跟踪的同时，我通过与调试器检查 LatencyMarksEmitter 正在发出标记来确认这一点.

All of this while the latency tracking is enabled which I confirmed by checking with the debugger that the LatencyMarksEmitter is emiting the marks.

我做错了什么?

推荐答案

在 1.5 中，延迟指标不是针对任务公开的，而是针对作业公开的，原因是延迟指标本质上包含有关多个任务的信息.你必须查询 "http://localhost:8081/jobs/e779dbbed0bfb25cd02348a25cd02348a21/31.

In 1.5 latency metrics aren't exposed for tasks but for jobs instead, the reasoning being that latency metrics inherently contain information about multiple tasks. You have to query "http://localhost:8081/jobs/e779dbbed0bfb25cd02348a2317dc8f1/metrics" instead.

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