WARN Error while fetching metadata with correlation id 1 : {MY_TOPIC?=INVALID_TOPIC_EXCEPTION} (org.apache.kafka.clients.NetworkClient)

问题:

when I run the following command with kafka 0.9.0.1 i get this warnings[1]. Can you please tell me what is wrong with my topics? (I'm talking to the kafka broker which runs in ec2)

#./kafka-console-consumer.sh --new-consumer --bootstrap-server kafka.xx.com:9092 --topic MY_TOPIC?

[1]

[2016-04-06 10:57:45,839] WARN Error while fetching metadata with correlation id 1 : {MY_TOPIC?=INVALID_TOPIC_EXCEPTION} (org.apache.kafka.clients.NetworkClient) [2016-04-06 10:57:46,066] WARN Error while fetching metadata with correlation id 3 : {MY_TOPIC?=INVALID_TOPIC_EXCEPTION} (org.apache.kafka.clients.NetworkClient) [2016-04-06 10:57:46,188] WARN Error while fetching metadata with correlation id 5 : {MY_TOPIC?=INVALID_TOPIC_EXCEPTION} (org.apache.kafka.clients.NetworkClient) [2016-04-06 10:57:46,311] WARN Error while fetching metadata with correlation id 7 : {MY_TOPIC?=INVALID_TOPIC_EXCEPTION} (org.apache.kafka.clients.NetworkClient) 

回答1:

You topic name is not valid because it has character '?' which is not legalCharacter for topic names.

文章来源: WARN Error while fetching metadata with correlation id 1 : {MY_TOPIC?=INVALID_TOPIC_EXCEPTION} (org.apache.kafka.clients.NetworkClient)