[GitHub] [kafka] splett2 commented on a change in pull request #9386: KAFKA-10024: Add dynamic configuration and enforce quota for per-IP connection rate limits (KIP-612, part 2)

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splett2 commented on a change in pull request #9386:
URL: https://github.com/apache/kafka/pull/9386#discussion_r519054824



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File path: core/src/main/scala/kafka/network/SocketServer.scala
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@@ -1659,19 +1648,22 @@ class ConnectionQuotas(config: KafkaConfig, time: Time, 
metrics: Metrics) extend
    * @param connectionQuotaEntity entity to create the sensor for
    */
   private def getOrCreateConnectionRateQuotaSensor(quotaLimit: Int, 
connectionQuotaEntity: ConnectionQuotaEntity): Sensor = {
-    sensorAccessor.getOrCreate(
-      connectionQuotaEntity.sensorName,
-      connectionQuotaEntity.sensorExpiration,
-      sensor => sensor.add(connectionRateMetricName(connectionQuotaEntity), 
new Rate, rateQuotaMetricConfig(quotaLimit))
-    )
+    Option(metrics.getSensor(connectionQuotaEntity.sensorName)).getOrElse {
+      val sensor = metrics.sensor(
+        connectionQuotaEntity.sensorName,
+        rateQuotaMetricConfig(quotaLimit),
+        connectionQuotaEntity.sensorExpiration
+      )
+      sensor.add(connectionRateMetricName(connectionQuotaEntity), new Rate, 
null)
+      sensor
+    }

Review comment:
       I removed use of `sensorAccess`, since all calls to 
`sensorAccessor.getOrCreate` were performed with the `counts` lock.




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