I just install schema-registry using helm,set replicaCount=3,and it is obviously that the topic named _schema is blocked. The log shows only one schema-registry client can connect to _schema topic,
first:
helm repo add bitnami https://charts.bitnami.com/bitnami
second:
set replicaCount=3 and set SCHEMA_REGISTRY_KAFKASTORE_BOOTSTRAP_SERVERS="kafka1:9093,kafka2:9093,kafka3:9093"
helm install my-schema-registry bitnami/schema-registry --version 15.0.1
it shows fail to create topic due to first pod created _schema and second pod created _Schema failed.
success install schema-registry connecting to three kafka cluster addresses,and run multi replicas schema-registry