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https://issues.apache.org/jira/browse/SENTRY-2030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16227278#comment-16227278
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Alexander Kolbasov commented on SENTRY-2030:
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I think synchronization isn't an issue because we are using repeatable-read
results shouldn't change once you read them (except for Oracle where this might
cause issues). All our Datanucleus options are configurable (you can overwrite
them in sentry-site.xml), so I am talking about the default value.
> Enable first-level cache for DataNucleus
> ----------------------------------------
>
> Key: SENTRY-2030
> URL: https://issues.apache.org/jira/browse/SENTRY-2030
> Project: Sentry
> Issue Type: Bug
> Components: Sentry
> Affects Versions: 2.0.0
> Reporter: Alexander Kolbasov
>
> Sentry is using a new persistence manager instance per transaction and
> repeatable-read transaction isolation level (except for Oracle). I think we
> can safely enable first-level caching (which is at the PersistenceManager
> level) which should improve performance without introducing any issues.
> [~spena] [~kkalyan] [~btowles][~lina.li] What do you think?
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