クライアントサイドの指標の説明

long totaLatency=0;
ServerStream<Row> stream = bigtableDataClient.readRows(query);

for (Row row : stream) {
   timer.start();
   // Do something with row
   timer.stop();
   totalLatency += timer.elapsed();
}

client.readRowsAsync(query, new ResponseObserver<Row>() {
    @Override
    public void onStart(StreamController streamController) {

    }

    @Override
    public void onResponse(Row row) {
        timer.start();
        // Do something with the row
        timer.stop();
        totalLatency += timer.elapsed();
    }

    @Override
    public void onError(Throwable throwable) {
        // Do something with the error
    }

    @Override
    public void onComplete() {
    }
});

List<Row> rows = bigtableDataClient.readRowsCallable().all().call(query);