Best way to migrate Kafka cluster -

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i have kafka cluster of 2 nodes. kafka version 0.8.1.
need migrate different set of servers.

whats best way migrate maintaining no downtime , no data loss?

assuming new servers , old servers live in same data center, easiest way add new ones replicas existing partitions have. kafka bring them in sync making them isrs. 1 in-sync should able safely shutdown old nodes.

this of course depends on how consumers configured (will automatically find new nodes?) , version of kafka you're on.

take at:

you need use kafka-reassign-partitions.sh tool make happen. test in non-production environment first.


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