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https://issues.apache.org/jira/browse/SENTRY-1534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15813149#comment-15813149
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Hao Hao commented on SENTRY-1534:
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+1 Thanks [~akolb] for the contribution!
> Oracle supports serializable instead of repeatable-read
> -------------------------------------------------------
>
> Key: SENTRY-1534
> URL: https://issues.apache.org/jira/browse/SENTRY-1534
> Project: Sentry
> Issue Type: Bug
> Components: Sentry
> Affects Versions: 1.8.0, sentry-ha-redesign
> Reporter: Alexander Kolbasov
> Assignee: Alexander Kolbasov
> Attachments: SENTRY-1534.003.patch
>
>
> The fix for SENTRY-1486 changed the default transaction isolation level from
> read-committed to repeatable-read. Unfortunately Oracle doesn't support it
> and Datanucleus doesn't handle this properly (it thinks that it is
> supported). For Oracle the consistency level should be set to "serializable"
> With the current setting (repeatable-read") Sentry doesn't work with Oracle.
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