包 kafka-clients 中的 AdminClient 线程安全吗？

Question

I need to provide existention of kafka topic before producing events and default kafka topic autocreate is not adequate. I have desided to use AdminClient class but I am worried about concurency issues.
There is no information about thread safety AdminClient in documentation for Apache Kafka 2.2.x. Does somebody have any idea?

Answer 1

是的，Apache Kafka 的 AdminClient 是线程安全的，在它出现的每个版本的 Kafka 中。我们将创建一个 PR 来更新文档（我认为它已经在 J​​avaDoc 中了，但看起来没有。）

Answer 2

Kafka's AdminClient is intended to be used for administrative tasks, so there should be no need to use it in a context that requires thread-safety.

If you have a need for multiple threads to be using AdminClient for different tasks, simultaneously, you can simply instantiate multiple instances of it, and use them separately, each in its own thread. They will all do their thing separately, with no concurrency issues, since they don't need to talk to each other, or even know about each other. There is no need for multiple threads to access the same instance of AdminClient .

Answer 3

The proposal section of the KIP states:

"The client will be multi-threaded; multiple threads will be able to safely make calls using the same AdminClient object."

Beyond that, thread-safety of the Admin Client is not documented.