[Backport 2.x] Remove redundant ClusterManagerThrottlingMetricsCollector

build.gradle

@@ -229,7 +229,6 @@ jacocoTestReport {
                     ],
                     exclude: [
                             '**/FaultDetectionMetricsCollector.class',
-                            '**/ClusterManagerThrottlingMetricsCollector.class',
                             '**/ClusterSettingsManager.class',
                     ])
         })

src/main/java/org/opensearch/performanceanalyzer/PerformanceAnalyzerPlugin.java

@@ -47,7 +47,6 @@
 import org.opensearch.performanceanalyzer.collectors.ClusterApplierServiceStatsCollector;
 import org.opensearch.performanceanalyzer.collectors.ClusterManagerServiceEventMetrics;
 import org.opensearch.performanceanalyzer.collectors.ClusterManagerServiceMetrics;
-import org.opensearch.performanceanalyzer.collectors.ClusterManagerThrottlingMetricsCollector;
 import org.opensearch.performanceanalyzer.collectors.ElectionTermCollector;
 import org.opensearch.performanceanalyzer.collectors.FaultDetectionMetricsCollector;
 import org.opensearch.performanceanalyzer.collectors.NodeDetailsCollector;
@@ -216,9 +215,6 @@ public PerformanceAnalyzerPlugin(final Settings settings, final java.nio.file.Pa
                         performanceAnalyzerController, configOverridesWrapper));
         scheduledMetricCollectorsExecutor.addScheduledMetricCollector(
                 new ShardStateCollector(performanceAnalyzerController, configOverridesWrapper));
-        scheduledMetricCollectorsExecutor.addScheduledMetricCollector(
-                new ClusterManagerThrottlingMetricsCollector(
-                        performanceAnalyzerController, configOverridesWrapper));
         scheduledMetricCollectorsExecutor.addScheduledMetricCollector(
                 new ClusterApplierServiceStatsCollector(
                         performanceAnalyzerController, configOverridesWrapper));

src/main/java/org/opensearch/performanceanalyzer/collectors/ClusterManagerServiceEventMetrics.java

@@ -160,7 +160,7 @@ public void collectMetrics(long startTime) {
                 | IllegalAccessException
                 | ClassNotFoundException e) {
             LOG.debug(
-                    "[ {} ] Exception raised while getting Cluster Manager throttling metrics: {} ",
+                    "[ {} ] Exception raised while getting Cluster Manager Service Event metrics: {} ",
                     this::getCollectorName,
                     e::getMessage);
             StatsCollector.instance().logException(CLUSTER_MANAGER_METRICS_ERROR);

src/main/java/org/opensearch/performanceanalyzer/util/Utils.java

@@ -40,8 +40,6 @@ public static void configureMetrics() {
         MetricsConfiguration.CONFIG_MAP.put(ClusterManagerServiceMetrics.class, cdefault);
         MetricsConfiguration.CONFIG_MAP.put(FaultDetectionMetricsCollector.class, cdefault);
         MetricsConfiguration.CONFIG_MAP.put(ShardStateCollector.class, cdefault);
-        MetricsConfiguration.CONFIG_MAP.put(
-                ClusterManagerThrottlingMetricsCollector.class, cdefault);
         MetricsConfiguration.CONFIG_MAP.put(ClusterApplierServiceStatsCollector.class, cdefault);
         MetricsConfiguration.CONFIG_MAP.put(ElectionTermCollector.class, cdefault);
         MetricsConfiguration.CONFIG_MAP.put(ShardIndexingPressureMetricsCollector.class, cdefault);