zentol commented on issue #9180: [FLINK-13331][table-planner-blink] Add CachedMiniCluster to share cluster between ITCases URL: https://github.com/apache/flink/pull/9180#issuecomment-513441557 This approach will always leak resources as @wuchong pointed out. I have doubts whether this will improve the test times in a significant way, since we're only skipping the creation of ~60 mini clusters. Nevertheless please also provide actual numbers when doing optimizations such as this; i.e., how long did the tests take beforehand, how long do they take now, so we can gauge how valuable this change is.
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