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https://issues.apache.org/jira/browse/ARROW-788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15962006#comment-15962006
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Philipp Moritz commented on ARROW-788:
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[~wesmckinn] Thanks a lot! It seems to be fixed by the first idea, this patch
makes the nondeterminism tests pass: https://github.com/apache/arrow/pull/512
Let me know if you can think of reasonable tests for this in arrow or if
documentation needs to be updated!
> Possible nondeterminism in Tensor serialization code
> ----------------------------------------------------
>
> Key: ARROW-788
> URL: https://issues.apache.org/jira/browse/ARROW-788
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++, Python
> Reporter: Philipp Moritz
> Priority: Minor
>
> The Ray nondeterminism tests are failing on
> https://github.com/ray-project/ray/pull/436 (moving to Arrow's Tensor
> serialization code).
> This might mean that there is some nondeterminism (like uninitialized memory)
> in the IPC file written by the Arrow Tensor serializer. I'm investigating it
> now, please let me know if you have an idea what the problem could be.
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