Question 1

How to integrate jetcd with Spring Boot for configuration management?

Accepted Answer

You can create a Spring bean for EtcdClient and use it in your services, but jetcd is minimal, so you'll need to manually handle connection lifecycle and error recovery, unlike more integrated Spring Cloud Config solutions.

Question 2

jetcd vs etcd-java: which client is better for modern etcd?

Accepted Answer

Jetcd is lighter and focuses on non-blocking watches with HttpAsyncClient, while etcd-java often supports etcd v3 with gRPC. Choose jetcd for basic async needs on older etcd; use etcd-java for full v3 API coverage and better performance.

Question 3

Does jetcd support etcd v3 and its gRPC API?

Accepted Answer

No, jetcd mainly supports the HTTP API used in etcd v2, so it misses out on etcd v3 features like leases, transactions, and improved efficiency from gRPC. Consider alternative clients if you need v3 compatibility.

Question 4

How to handle errors and retries in jetcd asynchronous calls?

Accepted Answer

Error handling is done through ListenableFuture callbacks or by catching exceptions, but jetcd doesn't provide built-in retry logic. You'll need to implement custom retry mechanisms for robustness in distributed environments.

Question 5

Setting up jetcd with TLS/SSL for secure connections?

Accepted Answer

The README doesn't cover TLS; you must configure the underlying HttpAsyncClient with SSL contexts manually, which adds complexity compared to clients with out-of-the-box security features.

Question 6

Best practices for using jetcd in microservices?

Accepted Answer

Use it for simple service discovery or config watching, but ensure proper connection pooling and monitor for failures, as the lightweight design might not handle all edge cases like network partitions automatically.

jetcd

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