jackjlli commented on code in PR #13679:
URL: https://github.com/apache/pinot/pull/13679#discussion_r1687219963
##########
pinot-common/src/test/java/org/apache/pinot/common/metrics/AbstractMetricsTest.java:
##########
@@ -48,4 +53,30 @@ public void testAddOrUpdateGauge() {
controllerMetrics.removeGauge(metricName);
Assert.assertTrue(controllerMetrics.getMetricsRegistry().allMetrics().isEmpty());
}
+
+ @Test
+ public void testUpdateAndRemoveGauge()
Review Comment:
In order to avoid leaving the orphan metrics from the previous test, can we
add a method with the `@BeforeTest` annotation to clean up all the old metrics?
You can do sth like:
```
// Remove metrics if exists
for (Map.Entry<PinotMetricName, PinotMetric> entry :
metricsRegistry.allMetrics().entrySet()) {
metricsRegistry.removeMetric(entry.getKey());
}
```
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