pan3793 commented on code in PR #6891:
URL: https://github.com/apache/kyuubi/pull/6891#discussion_r1923964175
##########
kyuubi-metrics/src/main/scala/org/apache/kyuubi/metrics/MetricsSystem.scala:
##########
@@ -58,8 +60,8 @@ class MetricsSystem extends CompositeService("MetricsSystem")
{
meter.mark(value)
}
- def getGauge[T](name: String): Option[Gauge[T]] = {
- Option(registry.gauge(name))
+ def getGauge(name: String): Option[Gauge[_]] = {
+ registry.getGauges((metricsName, _) => { metricsName == name
}).asScala.map(_._2).headOption
Review Comment:
semantic is correct, but performance is poor, is it possible to have an O(1)
approach? if impossible and perf is acceptable, please leave a brief comment to
explain that.
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