Remove invalid broker Information from Replicas in kafka

Question

I was trying to increase the replication factor of a topic by providing a json as specified in docs.

https://kafka.apache.org/0102/documentation.html

By mistake i put invalid broker id in specifying replication list. Even if did the rollback, that invalid broker id is not going off.

Is there a way to fix it. Please help

Topic: cms_scf_images_zip Partition: 16 Leader: 4 Replicas: 4,6,7,8 Isr: 4,6,7 Topic: cms_scf_images_zip Partition: 17 Leader: 5 Replicas: 5,7,1 Isr: 5,7,1

8 is the invalid broker id

Answer 1

I posted a solution here .

Spin up a new broker with an id of 8.

Using ./kafka-topics.sh check that node 8 is in the isr column.

Once it is sync'd, you can use ./kafka-reassign-partitions.sh to remove it as a replica.