Monday, 15 June 2015

high availability - Whats the best way to migrate a zookeeper ensemble of 3? -


I have a ZK ensemble of 3 nodes.

I need to take everyone to a different server.

What is the best way to achieve this while achieving downtime?

It is necessary to temporarily increase an ensemble size that will also work 0 Getting the downtime is the main goal.

View this summary:

    Add two more nodes to the new server
  1. Let them synchronize, then add them to the existing configuration
  2. Restart followers
  3. Kill the rest Master and Deploy 3. ZK on new server
  4. Kill two ZKs on wrong server

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