fix

Author: sushanb

google-cloud-bigtable/src/main/java/com/google/cloud/bigtable/data/v2/stub/metrics/ChannelPoolMetricsTracer.java

@@ -83,7 +83,7 @@ public void registerLoadBalancingStrategy(String lbPolicy) {
 
   /** Starts the periodic collection. */
   public ScheduledFuture<?> start(ScheduledExecutorService scheduler) {
-    return scheduler.scheduleAtFixedRate(this, 0, SAMPLING_PERIOD_SECONDS, TimeUnit.SECONDS);
+    return scheduler.scheduleAtFixedRate(this, SAMPLING_PERIOD_SECONDS, SAMPLING_PERIOD_SECONDS, TimeUnit.SECONDS);
   }
 
   @Override

google-cloud-bigtable/src/main/java/com/google/cloud/bigtable/gaxx/grpc/BigtableTransportChannelProvider.java

@@ -40,7 +40,6 @@
  */
 @InternalApi
 public final class BigtableTransportChannelProvider implements TransportChannelProvider {
-  static final Logger LOG = Logger.getLogger(BigtableTransportChannelProvider.class.getName());
   private final InstantiatingGrpcChannelProvider delegate;
   private final ChannelPrimer channelPrimer;
   @Nullable private final ChannelPoolMetricsTracer channelPoolMetricsTracer;
@@ -170,14 +169,6 @@ public TransportChannel getTransportChannel() throws IOException {
       channelPoolMetricsTracer.registerChannelInsightsProvider(btChannelPool::getChannelInfos);
       channelPoolMetricsTracer.registerLoadBalancingStrategy(
           btPoolSettings.getLoadBalancingStrategy().name());
-      if (backgroundExecutor != null) {
-        channelPoolMetricsTracer.start(backgroundExecutor);
-      } else {
-        LOG.log(
-            Level.WARNING,
-            "backgroundExecutor is null, ChannelPoolMetricsTracer cannot be started.");
-      }
-    }
 
     return GrpcTransportChannel.create(btChannelPool);
   }