Using Observer Zookeeper in Kafka DR scenario

0
votes

If we have a stretch kafka cluster of two DCs with 6 brokers and 5 zookeepers, split in below fashion:

DC1 : 3 zookeepers & 3 brokers ; DC2 : 2 zookeepers & 3 brokers

For a DR scenario in case, DC1 fails. How can we use a spare zookeeper, say an observer zookeeper(preferably in cloud) to come for the rescue and avoid a disaster? Can an extra zookeeper serve a DR situation? Suggestions welcome!

Thanks!

1
apache-kafkaapache-zookeeper

1 Answers

0
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I'm not entirely sure how an extra Zookeeper will save you here.

If you had a replication factor of 3, then a DC is down, you're potentially losing entire topics that are on those brokers. Even if one replica is available, then any producer with acks=all or a topic config of min ISR = 2, will start causing issues