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From "Stephan Ewen (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (FLINK-7997) Avro should be always in the user code
Date Mon, 06 Nov 2017 19:01:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-7997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Stephan Ewen closed FLINK-7997.

> Avro should be always in the user code
> --------------------------------------
>                 Key: FLINK-7997
>                 URL: https://issues.apache.org/jira/browse/FLINK-7997
>             Project: Flink
>          Issue Type: Improvement
>            Reporter: Stephan Ewen
>            Assignee: Stephan Ewen
>             Fix For: 1.4.0
> Having Avro in the user code space makes it possible for users to use different Avro
versions that the ones pulled in by an overloaded classpath (for example when having Hadoop
in the classpath)
> This is possible through the new child-first classloading in Flink 1.4.
> Also, this should fix the problem of "X cannot be cast to X", because Avro classes will
be scoped to the user code class loader, and the Avro schema cache will not be JVM-wide-

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