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https://issues.apache.org/jira/browse/THRIFT-628?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Duxbury updated THRIFT-628:
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Attachment: thrift-628.patch
This should do the trick. Note that the only change is to Union structs, since
that's the only type of struct that uses the field id in the hashcode.
> Hash code method for _Fields objects does not behave as expected
> ----------------------------------------------------------------
>
> Key: THRIFT-628
> URL: https://issues.apache.org/jira/browse/THRIFT-628
> Project: Thrift
> Issue Type: Bug
> Components: Compiler (Java)
> Affects Versions: 0.2
> Reporter: Bryan Duxbury
> Assignee: Bryan Duxbury
> Priority: Critical
> Fix For: 0.2
>
> Attachments: thrift-628.patch
>
>
> It turns out that Enums in Java don't have good hashcode behavior. It uses
> object ID, which can be inconsistent between different invocations of the
> same application, which breaks things like Hadoop partitioning. We should use
> the hash of the actual thrift field id instead of the hash of the enum
> version of the field.
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