I am getting the Co ordinator not available error when trace is enabled on kafka servers.
2018-01-08 19:57:22,088] TRACE [KafkaApi-0] Handling request:RequestHeader(apiKey=FIND_COORDINATOR, apiVersion=1, clientId=producer-2, correlationId=563) -- {coordinator_key=NBDEV1$Q4LG13020AVRO2018-01-08 1 2:55:41,coordinator_type=1} from connection 10.211.133.198:9092 -10.55.94.140:57334-380;securityProtocol:PLAINTEXT,principal:User:ANONYMOUS (kafka.server.KafkaApis) [2018-01-08 19:57:22,089] TRACE [KafkaApi-0] Sending FindCoordinator response FindCoordinatorResponse(throttleTimeMs=0, errorMessage='null', error=COORDINATOR_NOT_AVAILABLE, node=:-1 (id: -1 rack: null)) for correlation id 563 to client producer-2. (kafka.server.KafkaApis) [2018-01-08 19:57:22,089] TRACE Socket server received response to send to 10.211.133.198:9092-10.55.94.140:57334-380, registering for write and sending data: Response(request=Request(processor=2, connection Id=10.211.133.198:9092-10.55.94.140:57334-380, session=Session(User:ANONYMOUS,/10.55.94.140), listenerName=ListenerName(PLAINTEXT), securityProtocol=PLAINTEXT, buffer=null), responseSend=Some(org.apache.kafk a.common.network.NetworkSend@67872478), responseAction=SendAction), responseAsString=Some({throttle_time_ms=0,error_code=15,error_message=null,coordinator={node_id=-1,host=,port=-1}}) (kafka.network.Processo r) [2018-01-08 19:57:22,091] TRACE [KafkaApi-0] Handling request:RequestHeader(apiKey=HEARTBEAT, apiVersion=1, clientId=_confluent-controlcenter-4-0-0-5-b15126ae-d09a-4b83-9387-e297d871f326-StreamThread-7-consu mer, correlationId=1330306) -- {group_id=_confluent-controlcenter-4-0-0-5,generation_id=8,member_id=_confluent-controlcenter-4-0-0-5-b15126ae-d09a-4b83-9387-e297d871f326-StreamThread-7-consumer-bb18d5a5-7b3a -4044-a745-815640103e70} from connection 10.211.133.198:9092 -10.211.133.198:55182-1;securityProtocol:PLAINTEXT,principal:User:ANONYMOUS (kafka.server.KafkaApis) [2018-01-08 19:57:22,092] TRACE [KafkaApi-0] Sending heartbeat response org.apache.kafka.common.requests.HeartbeatResponse@3210e01f for correlation id 1330306 to client _confluent-controlcenter-4-0-0-5-b1512 6ae-d09a-4b83-9387-e297d871f326-StreamThread-7-consumer. (kafka.server.KafkaApis) [2018-01-08 19:57:22,092] TRACE Socket server received response to send to 10.211.133.198:9092-10.211.133.198:55182-1, registering for write and sending data: Response(request=Request(processor=2, connection Id=10.211.133.198:9092-10.211.133.198:55182-1, session=Session(User:ANONYMOUS,/10.211.133.198), listenerName=ListenerName(PLAINTEXT), securityProtocol=PLAINTEXT, buffer=null), responseSend=Some(org.apache.ka fka.common.network.NetworkSend@21e8f193), responseAction=SendAction), responseAsString=Some({throttle_time_ms=0,error_code=0}) (kafka.network.Processor) On Mon, Jan 8, 2018 at 12:08 PM, Nishanth S <nishanth.2...@gmail.com> wrote: > Hi EveryOne, > We are running into an issue where kafka producer hangs after > inittransactions api. I have created a new topic and the same issue > happens intermittently . It is not consistent but occurs more often than > not . We are running confluent 4.0 and using the below dependencies on > client side. > > Is this an issue with client side dependencies ? Does confluent maintain > its own version for kafka-clients? > > <dependency> > <!-- https://mvnrepository.com/artifact/org.apache.kafka/kafka_2.11 --> > <groupId>org.apache.kafka</groupId> > <artifactId>kafka_2.12</artifactId> > <version>0.11.0.0</version> > </dependency> > <dependency> > <!-- https://mvnrepository.com/artifact/org.apache.kafka/kafka_2.11 --> > <groupId>org.apache.kafka</groupId> > <artifactId>kafka-clients</artifactId> > <version>0.11.0.0</version> > </dependency> > <dependency> > <groupId>io.confluent</groupId> > <artifactId>kafka-avro-serializer</artifactId> > <!-- For CP 3.0.0 --> > <version>3.0.0</version> > </dependency> >