Hi, we were going to upgrade our application from Flink 1.14.4 to Flink 1.15.2, when we noticed, that all our job tests, using a MiniClusterWithClientResource, are multiple times slower in 1.15 than before in 1.14. I, unfortunately, have not found mentions in that regard in the changelog or documentation. The slowdown is rather extreme I hope to find a solution to this. I saw it mentioned once in the mailing list, but there was no (public) outcome to it.
I would appreciate any help on this. Thank you in advance. Best David
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