Question 1

Is rust-zookeeper compatible with async/await in Rust?

Accepted Answer

Yes, it uses MIO for asynchronous I/O, which can be integrated with async/await via crates like tokio or async-std. However, you may need to wrap it in an async runtime, as it's not directly built on higher-level async abstractions.

Question 2

How to cache child nodes in ZooKeeper using rust-zookeeper?

Accepted Answer

Use the built-in PathChildrenCache recipe, which handles caching and updates for child nodes of a specified path. Check the examples directory in the repository for implementation details and usage patterns.

Question 3

rust-zookeeper vs using the Java client via FFI in Rust – which is better?

Accepted Answer

rust-zookeeper is preferable for pure Rust environments due to its idiomatic API and no FFI overhead, but if you need full Java client features immediately, FFI might be necessary since this library has limited recipe support.

Question 4

What ZooKeeper server versions does rust-zookeeper support?

Accepted Answer

It aims for equivalence with the official low-level Java client, typically supporting ZooKeeper 3.4.x and above, but check the documentation or issues for specific compatibility details, as it's not explicitly stated in the README.

Question 5

How to handle connection loss and reconnection in rust-zookeeper?

Accepted Answer

The client provides session management similar to the Java API, with automatic reconnection attempts on network failures. Implement watchers and error handlers as shown in the examples to manage state changes gracefully.

Question 6

Are there performance benchmarks for rust-zookeeper?

Accepted Answer

No benchmarks are mentioned in the README, but as a MIO-based implementation, it should offer efficient I/O. For specific metrics, you might need to run custom tests or look at community contributions.

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