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The goals behind the command line shell are fundamentally to provide a centralized management for Kafka operations.

There are a lot of different kafka tools. Right now I think 5-6 of them are being used commonly. I was thinking we could start by taking https://cwiki.apache.org/confluence/display/KAFKA/System+Tools and https://cwiki.apache.org/confluence/display/KAFKA/Replication+tools and exposing them in a plugin type way for a command line shell interface. This would also include a This includes new global broker configuration management and access to the tools we already have outside of the scripts both through a new wire protocol message type.

1) We need to add a new Admin message to the wire protocol that will be able to deal with passing the command line utility calls to the tools and global configuration manager on the broker (any broker). Any tool performing a task will (should be able to, need to flesh this out more) be able to execute but instead of on the command line will be on a broker thread. The controller will continue to-do the tasks it is doing today such as "create topic" however; the TopicCommand will be called from within the handleAdminRequestTools.

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