Add MicrometerCommandLatencyRecorder to Redis clusters

service/src/main/java/org/whispersystems/textsecuregcm/metrics/LettuceMetricsMeterFilter.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2022 Signal Messenger, LLC
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+package org.whispersystems.textsecuregcm.metrics;
+
+import io.micrometer.core.instrument.Meter;
+import io.micrometer.core.instrument.config.MeterFilter;
+
+public class LettuceMetricsMeterFilter implements MeterFilter {
+
+  private static final String METRIC_NAME_PREFIX = "lettuce.command";
+  private static final String REMOTE_TAG = "remote";
+
+  // the `remote` tag is very high-cardinality, so we ignore it.
+  // In the future, it would be nice to map a remote (address:port) to a logical cluster name
+  private static final MeterFilter IGNORE_TAGS_FILTER = MeterFilter.ignoreTags(REMOTE_TAG);
+
+  @Override
+  public Meter.Id map(final Meter.Id id) {
+
+    if (id.getName().startsWith(METRIC_NAME_PREFIX)) {
+      return IGNORE_TAGS_FILTER.map(id);
+    }
+
+    return id;
+  }
+}