Additional Info: When I enter the curl commands from the 2.0 document, I get the same error: $ curl -X POST -H "Content-Type: application/vnd.kafka.json.v1+json" --data '{"records":[{"value":{"foo":"bar"}}]}' "http://10.1.30.48:8082/topics/jsontest" $ curl -X POST -H "Content-Type: application/vnd.kafka.v1+json" --data '{"name": "my_consumer_instance", "format": "json", "auto.offset.reset": "smallest"}' http://10.1.30.48:8082/consumers/my_json_consumer $ curl -X GET -H "Accept: application/vnd.kafka.json.v1+json" http://10.1.30.48:8082/consumers/my_json_consumer/instances/my_consumer_instance/topics/jsontest $ curl -X DELETE http://10.1.30.48:8082/consumers/my_json_consumer/instances/my_consumer_instance
http://docs.confluent.io/2.0.0/kafka-rest/docs/intro.html#produce-and-consume-json-messages -----Original Message----- From: Heath Ivie [mailto:hi...@autoanything.com] Sent: Tuesday, January 12, 2016 3:08 PM To: users@kafka.apache.org Subject: 409 Conflict Hi , I am running into an issue where I cannot register new consumers. The server is consistently return error code 40901: "Consumer cannot subscribe the the specified target because it has already subscribed to other topics". I am using different groups, different topics and different names but I cannot figure out what I am doing wrong. I am using the REST proxy for all of my communication. I am also letting Kafka select the instance name for me so that it is unique. Can someone please point me in the right direction? Thanks Heath Warning: This e-mail may contain information proprietary to AutoAnything Inc. and is intended only for the use of the intended recipient(s). If the reader of this message is not the intended recipient(s), you have received this message in error and any review, dissemination, distribution or copying of this message is strictly prohibited. If you have received this message in error, please notify the sender immediately and delete all copies.