merlimat commented on issue #1298: PIP-13-3/3: auto subscribe based on regex pattern topics changing URL: https://github.com/apache/incubator-pulsar/pull/1298#issuecomment-369139182 @zhaijack please check my earlier comment, I think it got hidden after the last changes you pushed, about using the `Timer` from the `ClientImpl` instance. That will ensure to not having a thread per topic, or to have a task blocked when the listener executor is blocked by the application.
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