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https://issues.apache.org/jira/browse/KAFKA-4260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tom Bentley updated KAFKA-4260:
-------------------------------
Labels: patch-available (was: )
> Improve documentation of configuration listeners=PLAINTEXT://0.0.0.0:9092
> -------------------------------------------------------------------------
>
> Key: KAFKA-4260
> URL: https://issues.apache.org/jira/browse/KAFKA-4260
> Project: Kafka
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 0.10.0.1
> Reporter: Michal Turek
> Assignee: Tom Bentley
> Priority: Minor
> Labels: patch-available
>
> We have just updated our testing Kafka cluster to 0.10 and we were facing one
> issue with migration of legacy 0.8 configuration to
> {noformat}
> listeners=PLAINTEXT://0.0.0.0:9092
> # advertised.listeners=PLAINTEXT://myPublicHostName:9092 # REQUIRED for
> 0.0.0.0:9092
> {noformat}
> This configuration will be invalid if {{advertised.listeners}} is not set
> too. Connection string 0.0.0.0:9092 is stored to ZooKeeper according to
> documentation of {{advertised.listeners}} and observed behavior, but it
> isn't obvious and difficult to analyze. Clients and even other brokers try to
> communicate with brokers using destination address 0.0.0.0:9092, which is
> impossible. Specification of {{advertised.listeners}} as shown above fixed
> the issue.
> Please update documentation at
> http://kafka.apache.org/0100/documentation#brokerconfigs and backport the
> change to 0.9 and 0.10 branches.
> h4. advertised.listeners
> Listeners to publish to ZooKeeper for clients to use, if different than the
> *`listeners`* -above-. In IaaS environments, this may need to be different
> from the interface to which the broker binds. If this is not set, the value
> for `listeners` will be used.
> h4. listeners
> Listener List - Comma-separated list of URIs we will listen on and their
> protocols. Specify hostname as 0.0.0.0 to bind to all interfaces *(note
> `advertised.listeners` configuration is required for 0.0.0.0)*. Leave
> hostname empty to bind to default interface. Examples of legal listener
> lists: PLAINTEXT://myhost:9092,TRACE://:9091 PLAINTEXT://0.0.0.0:9092,
> TRACE://localhost:9093
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