lhotari opened a new pull request #10065: URL: https://github.com/apache/pulsar/pull/10065
### Motivation In profiling, there can be seen an inefficiency in handling timeouts for CompletableFutures. For example, when creating topics, this can be seen in the flamegraph:  The root cause of this particular performance issue is that the exceptions are created eagerly. ### Modifications * Add methods to FutureUtils for adding timeout handling to existing futures and creating futures with timeout handling * Add a performance optimized subclass for TimeoutException that can be created by a factory method in FutureUtils * The exception doesn't create a stack trace because of performance reasons. Instead, the caller class and method name are provided when creating the exception. * The instances of this class are immutable and can be reused to minimize allocations. * Refactor existing code to use FutureUtils for adding timeout handling to futures. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
