Rajini Sivaram created KAFKA-6805:
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Summary: Allow dynamic broker configs to be configured in
ZooKeeper before starting broker
Key: KAFKA-6805
URL: https://issues.apache.org/jira/browse/KAFKA-6805
Project: Kafka
Issue Type: Task
Components: tools
Reporter: Rajini Sivaram
Assignee: Rajini Sivaram
Fix For: 2.0.0
At the moment, dynamic broker configs like SSL keystore and password can be
configured using ConfigCommand only after a broker is started (using the new
AdminClient). To start a broker, these configs have to be defined in
server.properties. We want to restrict updates using ZooKeeper once broker
starts up, but we should allow updates using ZK prior to starting brokers. This
is particularly useful for password configs which are stored encrypted in ZK,
making it difficult to set manually before starting brokers.
ConfigCommand is being updated to talk to AdminClient under KIP-248, but we
will need to maintain the tool using ZK to enable credentials to be created in
ZK before starting brokers. So the functionality to set broker configs can sit
alongside that.
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