message batching issues

[eapugo]

It seems in the docs you have listed an option for high volume by increasing the message_count_threshold.

High Volume
If you find that uploads are going too slowly, you can increase the message batching:

output {
google_pubsub {
project_id => "my_project"
topic => "my_topic"
json_key_file => "service_account_key.json"

# Options for configuring the upload
message_count_threshold => 10000
delay_threshold_secs => 10
request_byte_threshold => 5MB

}
}

Yet, in the description of message_count_threshold you declare that limit must be below 1000. It doesn't operate over 1000 message count
: INVALID_ARGUMENT: The value for 1107 is too large. You passed message_count in the request, but the maximum value is 1000."

The output engine is much slower than expected even with 1000

Your feedback would be much appreciated