Zookeeper easy
According to the CAP Theorem, how is ZooKeeper classified?
- A AP (Available and Partition Tolerant).
- B CA (Consistent and Available).
- C CP (Consistent and Partition Tolerant).
- D It does not fit the CAP theorem.
Answer: C. CP (Consistent and Partition Tolerant).
ZooKeeper prioritizes Consistency. If the cluster partitions and a client connects to the minority side, ZooKeeper will refuse to serve requests rather than serve stale or conflicting data.
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Get the appRelated questions
- What is the primary technical function of a ZooKeeper 'Watch'?
- A system administrator increases `jute.maxbuffer` to 5MB on every ZooKeeper server to store large configuration objects. However, write operations larger than 1MB still fail. What is the most likely cause?
- By default, `forceSync` is enabled. If you disable it, what trade-off are you making?
- If the specific ZooKeeper node a client is connected to crashes, what should the client do?
- Which cluster configuration has *worse* availability: A 3-node cluster or a 4-node cluster? (Assuming simple majority quorum)
- You need to implement a Distributed Queue where multiple producers push tasks. How does the 'Sequential' Znode flag provide the necessary ordering primitive?