Question-48: If a customer has experienced fsync delays and other I/O related issues with ZooKeeper, ZooKeeper’s dataDir and dataLogDir can be configured to use separate disks?

  1. True
  2. False

Answer:

Exp: If a customer has experienced fsync delays and other I/O related issues with ZooKeeper, ZooKeeper’s dataDir and dataLogDir can be configured to use separate disks. It is hard to determine ahead of time whether this will be necessary; even a small cluster can result in heavy ZooKeeper activity. 


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