Streamming data to Druid Server

I have ad log data and I want to send it real-time to Druid server. But, the issue is that between Tranquility and Kafka. Which is the best method to ingest data real-time ? Because, when using kafka it make a bundle of error. I try to use Tranquility.
Can anyone who have experiences on this issue help me ? Thanks a lot.

The best way is to use the new kafka indexing service. This service is independent from tranquility and has better guaranties.
Please read this doc

Thanks so much.