Add metadata requests to Kafka broker
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Key: KAFKA-223
URL: https://issues.apache.org/jira/browse/KAFKA-223
Project: Kafka
Issue Type: Improvement
Components: clients, core
Reporter: David Ormsbee
It would be useful to be able to query metadata from Kafka for the purposes of
monitoring and discovery:
1. Version: Just a quick way to get the broker version so that we know not to
send it a version of a request or response that it can't handle.
2. Topic information: Return the default number of partitions per topic, a list
of all topics, number of partitions per topic if there are overrides, and
start/end offsets for those topics (assuming it's cheap to do so). This would
allow Consumers and Producers to discover topics and partitions on a single
broker without involving ZooKeeper, and would also make it easier to know how
many partitions can be sent to when making a new topic with a ZK-aware Producer.
Discussed in thread:
http://mail-archives.apache.org/mod_mbox/incubator-kafka-dev/201112.mbox/%3CCALStshY02xT7b2n-%3DDjTF_QifEzjxWnCvmgRhSu8v8-ibbSGyQ%40mail.gmail.com%3E
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