bruth commented on issue #451: Introduce non-persistent topic URL: https://github.com/apache/incubator-pulsar/issues/451#issuecomment-366437640 Sorry to be commenting on a closed issue, but I wanted to ask how *cheap* is it to create a non-persistent topic? Would it be able to handle the use case of a one off request/reply? The client subscribes to a randomly named non-persistent topic, it publishes a request to a topic and includes the *reply* topic name expecting the consumer to send back a message on that topic at some point. I am currently using [NATS](https://github.com/nats-io/gnatsd) for this use case, but Pulsar would be very attractive if it can handle both cheap non-persistent topics and fully durable ones.
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