[java-firestore] No way to access gRpc parameter from Firestore service api to fix deadline exceeded exception(Java)

Hi,

We try to load in a single-transaction batch lots of data into Firestore via the Java api. It works fine with smaller data. But, when the amount to upload to Google Cloud from remote gets large, we get from gRpc a deadline exceeded exception: see stack trace and pom.xml below.

We would like to change the deadline via
response = blockingStub.withDeadlineAfter(deadlineMs,TimeUnit.MILLISECONDS).sayHello(request);
as described in https://grpc.io/blog/deadlines/.

Any other way would do.

We have explored various alternatives:

1. FirestoreOptions.setServiceRpcFactory(serviceRpcFactory)

1. FirestoreOptions.setTransportOptions(transportOptions)

But none seems to lead to access of the gRpc parameters.

So, is there currently no way to change gRpc parameters when using Firestore?

Thanks!
DIdier

======= pom.xml dependencies =======

com.google.cloud
libraries-bom
4.2.0
pom

com.google.cloud
google-cloud-firestore

====== Java stack trace ==============

ava.util.concurrent.ExecutionException: com.google.api.gax.rpc.DeadlineExceededException: io.grpc.StatusRuntimeException: DEADLINE_EXCEEDED: deadline exceeded after 49.999563145s. [remote_addr=firestore.googleapis.com/216.58.213.170:443]
at com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:553)
at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:534)
at com.google.common.util.concurrent.FluentFuture$TrustedFuture.get(FluentFuture.java:86)
at com.google.common.util.concurrent.ForwardingFuture.get(ForwardingFuture.java:62)
at com.action.inputParser.RawDataInputParser.main(RawDataInputParser.java:412)
Caused by: com.google.api.gax.rpc.DeadlineExceededException: io.grpc.StatusRuntimeException: DEADLINE_EXCEEDED: deadline exceeded after 49.999563145s. [remote_addr=firestore.googleapis.com/216.58.213.170:443]
at com.google.api.gax.rpc.ApiExceptionFactory.createException(ApiExceptionFactory.java:51)
at com.google.api.gax.grpc.GrpcApiExceptionFactory.create(GrpcApiExceptionFactory.java:72)
at com.google.api.gax.grpc.GrpcApiExceptionFactory.create(GrpcApiExceptionFactory.java:60)
at com.google.api.gax.grpc.GrpcExceptionCallable$ExceptionTransformingFuture.onFailure(GrpcExceptionCallable.java:97)
at com.google.api.core.ApiFutures$1.onFailure(ApiFutures.java:68)
at com.google.common.util.concurrent.Futures$CallbackListener.run(Futures.java:1039)
at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:30)
at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1165)
at com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:958)
at com.google.common.util.concurrent.AbstractFuture.setException(AbstractFuture.java:749)
at io.grpc.stub.ClientCalls$GrpcFuture.setException(ClientCalls.java:522)
at io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:497)
at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:426)
at io.grpc.internal.ClientCallImpl.access$500(ClientCallImpl.java:66)
at io.grpc.internal.ClientCallImpl$1CloseInContext.runInContext(ClientCallImpl.java:416)
at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: io.grpc.StatusRuntimeException: DEADLINE_EXCEEDED: deadline exceeded after 49.999563145s. [remote_addr=firestore.googleapis.com/216.58.213.170:443]
at io.grpc.Status.asRuntimeException(Status.java:533)
... 13 more