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Posted to issues@flink.apache.org by "Timo Walther (Jira)" <ji...@apache.org> on 2020/01/17 12:07:00 UTC

[jira] [Created] (FLINK-15635) Allow passing a ClassLoader to EnvironmentSettings

Timo Walther created FLINK-15635:
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             Summary: Allow passing a ClassLoader to EnvironmentSettings
                 Key: FLINK-15635
                 URL: https://issues.apache.org/jira/browse/FLINK-15635
             Project: Flink
          Issue Type: Improvement
          Components: Table SQL / API, Table SQL / Planner
            Reporter: Timo Walther


We had a couple of class loading issues in the past because people forgot to use the right classloader in {{flink-table}}. The SQL Client executor code hacks a classloader into the planner process by using {{wrapClassLoader}} that sets the threads context classloader.

Instead we should allow passing a class loader to environment settings. This class loader can be passed to the planner and can be stored in table environment, table config, etc. to have a consistent class loading behavior.



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