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https://issues.apache.org/jira/browse/FLINK-13730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16907964#comment-16907964
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Chesnay Schepler commented on FLINK-13730:
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It should be rather trivial to package the caching logic in my PR into a
standalone application that bash tests could use.
> 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
> Priority: Major
>
> 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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