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  1. Flink
  2. FLINK-25224

Upgrade the minimal supported hadoop version to 2.8.5

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    • Minimal supported Hadoop client version is now 2.8.5 (version of the Flink runtime dependency). The client can still talk to older server versions as the binary protocol should be backward compatible.

    Description

      In order to leverage new Hadoop features without reflection based workaround, we want to bump the minimum supported version of Hadoop to 2.8.5 (released in 2018). There were no reported objections from the community against dropping support for older versions.

      Please note that this doesn't break the binary protocol compatibility, which means that 2.8.5 client can still talk to older servers.

      Discussion thread: https://lists.apache.org/thread/81fhnwfxomjhyy59f9bbofk9rxpdxjo5

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        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. FLINK-25029 Hadoop Caller Context Setting In Flink

          • Major - Major loss of function.
          • Open
          relates to

          Technical Debt - FLINK-25577 Update GCS documentation

          • Blocker - Blocks development and/or testing work, production could not run
          • Closed
          links to

          Web Link GitHub Pull Request #18059

          Web Link GitHub Pull Request #18321

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              dmvk David Morávek
              liufangqi chenfengLiu
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                Updated:
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