[jira] [Created] (FLINK-13730) Cache and share the downloaded external distribution (e.g. Kafka) in E2E tests

["Jark Wu (JIRA)" <ji...@apache.org>]

Jark Wu created FLINK-13730:
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             Summary: Cache and share the downloaded external distribution (e.g. Kafka) in E2E tests
                 Key: FLINK-13730
                 URL: https://issues.apache.org/jira/browse/FLINK-13730
             Project: Flink
          Issue Type: Improvement
          Components: Connectors / Kafka, Tests
            Reporter: Jark Wu


We can try to cache and share the downloaded Kafka distribution among multiple e2e test runs.
There is a PR by Chesnay Schepler (https://github.com/apache/flink/pull/7605) which conceptually does it. 

This will help to reduce a lot of e2e testing time. And it would be very help for Chinese developers to verify e2e locally, because it's very unstable and almost impossible to download them in China.

We can do the same thing for other external distributions, for example, elasticsearch.



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