Zookeeper easy
How are ZNodes referenced?
- A By UUID.
- B By integer ID.
- C By absolute paths (slash-separated), e.g., `/my-app/config`.
- D By URL.
Answer: C. By absolute paths (slash-separated), e.g., `/my-app/config`.
It uses the standard UNIX filesystem notation. All paths must be absolute (start with `/`).
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?