Producer tries to Describe topics it has no access to

[daft-panda]

Versions

Sarama Version: 9bb4a68
Kafka Version: 0.10
Go Version: 1.6

Configuration

Kafka configured with ACLs (kafka.security.auth.SimpleAclAuthorizer) based on X.509 cert subject names.

Sarama config:

pcfg := sarama.NewConfig()
pcfg.Net.TLS.Enable = true
pcfg.Net.TLS.Config = config.TLSConfig()
pcfg.Producer.RequiredAcks = sarama.WaitForAll
pcfg.ClientID = "clientID"
pcfg.Version = sarama.V0_10_0_0

Logs

(Sarama) log output:

INFO[0000] Initializing new client
INFO[0000] client/metadata fetching metadata for all topics from broker localhost:9092
FATA[0000] Failed to create producer for server [localhost:9092]: kafka server: The client is not authorized to access this topic.

Kafka Authorizer DEBUG log output:

[2016-08-08 20:22:33,436] DEBUG Principal = User:CN=client,... is Allowed Operation = Describe from host = 127.0.0.1 on resource = Topic:A (kafka.authorizer.logger)
[2016-08-08 20:22:33,436] DEBUG Principal = User:CN=client,... is Denied Operation = Describe from host = 127.0.0.1 on resource = Topic:B (kafka.authorizer.logger)

Problem Description

Sarama seems to try to describe all topics when a producer is created, but if there is one or more topics that it has no access to, the producer creation fails.