Zookeeper easy
Which of the following is a classic use case for ZooKeeper?
- A Leader Election (deciding which server is the 'Master').
- B Storing 4K Video files.
- C Executing complex machine learning models.
- D Hosting a static website.
Answer: A. Leader Election (deciding which server is the 'Master').
Because ZooKeeper provides strong consistency and ordered updates, it is perfect for ensuring only one server claims the 'Leader' lock at a time.
One system design question a day, with spaced repetition so the ones you miss come back.
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)
- According to the CAP Theorem, how is ZooKeeper classified?