[KAFKA-864] bin/kafka-gen-reassignment.sh

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 0.8.0
• Assignee: Unassigned
• Reporter: Scott Clasen
• Created: 16/Apr/13 21:56
• Updated: 07/Feb/15 23:18
• Resolved: 07/Feb/15 23:18

Description

Better tooling for replacing failed brokers and reassigning partitions.
The output of ./bin/kafka-list-topic.sh makes doing this in bulk painful.
Tool should output json format acceptable to ./bin/kafka-reassign-partitions.sh

Spec: bin/kafka-gen-reassignment.sh

Option Description
------ -----------
--topic <topic> REQUIRED: The topic to be reassigned.
Defaults to all existing topics.
(default: )
--partition <partition> REQUIRED: The partition to be reassigned.
Defaults to all partitions.
(default: )
--from <broker-id> REQUIRED: The broker to reassign the partition from
--to <broker-id> REQUIRED: The broker to reassign the partition to.
--zookeeper <urls> REQUIRED: The connection string for
the zookeeper connection in the form
host:port. Multiple URLS can be
given to allow fail-over.

Workflow: Replacing a broker

./bin/kafka-gen-reassignment.sh --zookeeper <zks> --from <failed> --to <new> > reassign.json
./bin/kafka-reassign-partitions.sh --zookeeper <zks> --path-to-json-file reassign.json