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https://issues.apache.org/jira/browse/PARQUET-1353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16553021#comment-16553021
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ASF GitHub Bot commented on PARQUET-1353:
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zivanfi opened a new pull request #504: PARQUET-1353: Fix random data generator.
URL: https://github.com/apache/parquet-mr/pull/504
The random data generator used for tests used to repeat the same value
over and over again.
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> The random data generator used for tests repeats the same value over and over
> again
> -----------------------------------------------------------------------------------
>
> Key: PARQUET-1353
> URL: https://issues.apache.org/jira/browse/PARQUET-1353
> Project: Parquet
> Issue Type: Bug
> Reporter: Zoltan Ivanfi
> Assignee: Zoltan Ivanfi
> Priority: Minor
> Labels: pull-request-available
>
> The RandomValues class returns references to its internal buffer as random
> values. This buffer gets a random value every time a new random value is
> requested, but since earlier values reference the same internal buffer, they
> get changed to the same value as well. So even if successive calls return
> different values each time, the actual list of these values will always
> consist of a single value repeated multiple times. For example:
> ||n-th call||returned value||accumulated list expected||accumulated list
> actual||
> |1|6C|6C|6C|
> |2|8F|6C 8F|8F 8F|
> |3|52|6C 8F 52|52 52 52|
> |4|B8|6C 8F 52 B8|B8 B8 B8 B8|
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