Marc Labbe created KAFKA-1313:
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Summary: Support adding replicas to existing topic partitions
Key: KAFKA-1313
URL: https://issues.apache.org/jira/browse/KAFKA-1313
Project: Kafka
Issue Type: New Feature
Components: tools
Affects Versions: 0.8.0
Reporter: Marc Labbe
Priority: Minor
There is currently no easy way to add replicas to an existing topic partitions.
For example, topic create-test has been created with ReplicationFactor=1:
Topic:create-test PartitionCount:3 ReplicationFactor:1 Configs:
Topic: create-test Partition: 0 Leader: 1 Replicas: 1 Isr: 1
Topic: create-test Partition: 1 Leader: 2 Replicas: 2 Isr: 2
Topic: create-test Partition: 2 Leader: 3 Replicas: 3 Isr: 3
I would like to increase the ReplicationFactor=2 (or more) so it shows up like
this instead.
Topic:create-test PartitionCount:3 ReplicationFactor:2 Configs:
Topic: create-test Partition: 0 Leader: 1 Replicas: 1,2 Isr: 1,2
Topic: create-test Partition: 1 Leader: 2 Replicas: 2,3 Isr: 2,3
Topic: create-test Partition: 2 Leader: 3 Replicas: 3,1 Isr: 3,1
Use cases for this:
- adding brokers and thus increase fault tolerance
- fixing human errors for topics created with wrong values
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