Hi there, We looked at both of these a while back and ended up writing our own (https://github.com/ntent-ad/kafka4net).
The first one in the list was completely synchronous, and had no concept of batching. We initially attempted to use the second one (kafka-net) but had some issues with detecting leader changes, temporary errors, and general topic metadata changes. Also had some problems with the use of async and the tracking of correlation IDs on tcp messages. I know our client does not have a lot of documentation (yet) and says "Work in progress, not ready yet!" but we have been testing this a lot, and have been running in staging under load with good results. We will be entering production in the next few weeks (waiting until after the holidays). I wouldn't be comfortable with it going straight to production without some testing in your environment, but especially the Producer is very robust, and is resilient to all sorts of changes in the environment (the integration tests use Vagrant and a set of VMs and test Producing to non-existent partition and waiting for auto-creation of topic, partition rebalancing, broker down or other partition re-assignment, etc.) The client is fully Async and leverages Rx (https://rx.codeplex.com/) and an event-loop-scheduler to do all processing. Changes in partition state are broadcast Rx style to listening components (Producer, Consumer, PartitionRecoveryMonitor). One of the reasons we have not finalized the documentation and notice on the github page is we weren't sure if the API might change based on usage. To this end, we'd like to know what you think and if you have any use-cases not handled by the API. I understand if you're not comfortable with the beta state of the client, but we'd love to have you check it out. We are actively developing on this and can help with any issues. Thanks, Thunder -----Original Message----- From: Matti Waarna [mailto:mwaa...@sapient.com] Sent: Monday, December 22, 2014 7:55 AM To: users@kafka.apache.org Subject: Kafka in C# We are using kafka version 0.8.1.1 and trying to produce from a C# app. I realize that there is no official C# library release and want to get your experience with the existing solutions that are currently available. I am looking for a solution that is a) stable enough for production environment and b) performs well. 1) A couple of active github projects are available along with a few forks each. Has Anybody worked on either of the following two options to contribute their findings? https://github.com/Jroland/kafka-net https://github.com/miknil/Kafka4n 2) Also there is the option of IKVM to import kafka JARS into a .net DLL. Maybe even another solution? Thanks MATTI
