J-HowHuang commented on code in PR #17785:
URL: https://github.com/apache/pinot/pull/17785#discussion_r2870555630


##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/utils/BaseSegmentOperationsThrottler.java:
##########
@@ -20,21 +20,22 @@
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
-import java.util.Map;
-import java.util.Set;
 import java.util.concurrent.atomic.AtomicInteger;
+import javax.annotation.Nullable;
 import org.apache.pinot.common.concurrency.AdjustableSemaphore;
+import org.apache.pinot.common.metrics.ServerGauge;
 import org.apache.pinot.common.metrics.ServerMetrics;
-import org.apache.pinot.spi.config.provider.PinotClusterConfigChangeListener;
 import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 
 /**
  * Base class for segment operation throttlers, contains the common logic for 
the semaphore and handling the pre and
  * post query serving values. The semaphore cannot be null and must contain > 
0 total permits
  */
-public abstract class BaseSegmentOperationsThrottler implements 
PinotClusterConfigChangeListener {
+public class BaseSegmentOperationsThrottler {

Review Comment:
   done



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