500 Internal Server Error

[yuyivic]

# curl http://10.10.12.151:9308/metrics HTTP GET http://10.10.12.151:9308/metrics: 500 Internal Server Error Output: An error has occurred while serving metrics:

1 error(s) occurred:

• collected metric "kafka_consumergroup_members" { label:<name:"consumergroup" value:"prod-rest" > gauge: } was collected before with the same name and label values

# ./kafka_exporter --version kafka_exporter, version 1.4.2 (branch: HEAD, revision: 0d5d4ac4ba63948748cc2c53b35ed95c310cd6f2) build user: root@d6c4c344dbf3 build date: 20210916-09:43:31 go version: go1.17.1 platform: linux/amd64