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From: "Scott Clasen (JIRA)" <jira@apache.org>
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Subject: [jira] [Created] (KAFKA-864) bin/kafka-gen-reassignment.sh
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Scott Clasen created KAFKA-864:
----------------------------------

             Summary: bin/kafka-gen-reassignment.sh
                 Key: KAFKA-864
                 URL: https://issues.apache.org/jira/browse/KAFKA-864
             Project: Kafka
          Issue Type: Improvement
    Affects Versions: 0.8
            Reporter: Scott Clasen


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




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