message: Improve the "destroying remote tensor handle" error message and change it to a warning.
diff: @@ -58,7 +58,10 @@ void DestroyRemoteTensorHandle(EagerContext* ctx, const string& remote_task,
  if (executor.Async()) {
  Status status = executor.AddOrExecute(std::move(node));
  if (!status.ok()) {
  - LOG_EVERY_N_SEC(ERROR, 60) << "Unable to destroy remote tensor handles: "
  + LOG_EVERY_N_SEC(WARNING, 60)
  + << "Unable to destroy remote tensor handles. If you are "
  + "running a tf.function, it usually indicates some op in "
  + "the graph gets an error: "
  << status.error_message();
  }
  } else {
  @@ -69,8 +72,10 @@ void DestroyRemoteTensorHandle(EagerContext* ctx, const string& remote_task,
  Status status =
  ctx->Executor().AddOrExecute(absl::WrapUnique(released_node));
  if (!status.ok()) {
  - LOG_EVERY_N_SEC(ERROR, 60)
  - << "Unable to destroy remote tensor handles: "
  + LOG_EVERY_N_SEC(WARNING, 60)
  + << "Unable to destroy remote tensor handles. If you are "
  + "running a tf.function, it usually indicates some op in "
  + "the graph gets an error: "
  << status.error_message();
  }
  });
  