Bgitable Custom GRPC Channel

Bigtable.scala

 val settingsBuilder = BigtableDataSettings.newBuilder()
 settingsBuilder.setProjectId("projectId")
 settingsBuilder.setInstanceId("instanceId")
 settingsBuilder.setAppProfileId("default")
 val grpcSettings =  EnhancedBigtableStubSettings.defaultGrpcTransportProviderBuilder()
 grpcSettings.setMaxInboundMessageSize(550000000)
 println("Before Building Client Settings:  ")
 println(grpcSettings.getMaxInboundMessageSize().toString)
 settingsBuilder.stubSettings().setTransportChannelProvider(grpcSettings.build())
 val settings = settingsBuilder.build()
 println("Buffer Size After Building Settings: ")
 val provider = settings.getStubSettings().getTransportChannelProvider().asInstanceOf[InstantiatingGrpcChannelProvider]
 val bufferSize = provider.toBuilder().getMaxInboundMessageSize()
 println(bufferSize)
 val client = BigtableDataClient.create(settings)
 println("Buffer Size After Creating Client: ")
 val providerAfter = settings.getStubSettings().getTransportChannelProvider().asInstanceOf[InstantiatingGrpcChannelProvider]
 val bufferSizeAfter = provider.toBuilder().getMaxInboundMessageSize()
 println(bufferSizeAfter)

Java Version

import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
import com.google.cloud.bigtable.data.v2.BigtableDataClient;
import com.google.cloud.bigtable.data.v2.BigtableDataSettings;
import com.google.cloud.bigtable.data.v2.models.BulkMutation, Mutation;
import com.google.cloud.bigtable.data.v2.stub.EnhancedBigtableStubSettings;
import com.google.cloud.bigtable.data.v2.models.RowMutation;
import com.google.protobuf.ByteString;

//class definitions...
BigtableDataSettings.Builder settingsBuilder =
        BigtableDataSettings.newBuilder().setProjectId(projectId).setInstanceId(instanceId);
EnhancedBigtableStubSettings grpcSettins = EnhancedBigtableStubSettings.defaultGrpcTransportProviderBuilder();
grpcSettings.setMaxInboundMessageSize(550000000);
settingsBuilder.stubSettings().setTransportChannelProvider(grpcSettings.build());
BigtableDataSettings  settings = settingsBuilder.build();
BigtableDataClient client = BigtableDataClient.create(settings);