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https://issues.apache.org/jira/browse/SENTRY-1643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15893428#comment-15893428
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Alexander Kolbasov commented on SENTRY-1643:
--------------------------------------------
Datanucleus provides "identity" strategy:
{code}
<datastore-identity strategy="identity"/>
{code}
According to
http://www.datanucleus.org/documentation/extensions/value_generator.html this
may be what we are looking for.
> AutoIncrement ChangeID of MSentryPermChange/MSentryPathChange may be
> error-prone
> --------------------------------------------------------------------------------
>
> Key: SENTRY-1643
> URL: https://issues.apache.org/jira/browse/SENTRY-1643
> Project: Sentry
> Issue Type: Sub-task
> Components: Hdfs Plugin
> Affects Versions: sentry-ha-redesign
> Reporter: Hao Hao
> Assignee: Lei (Eddy) Xu
> Fix For: sentry-ha-redesign
>
>
> In MSentryPermChange/MSentryPathChange table, the changeID field is
> auto-increment.
> {noformat}
> <field name="changeID" primary-key="true" value-strategy="increment">
> <column name="CHANGE_ID" jdbc-type="BIGINT" allows-null="false"/>
> </field>{noformat}
> However, found through the integration unit test TestHDFSIntegration, the
> value does not seem to be correctly auto increased. e.g Instead of increasing
> by one for each new entry, it increased by some unexpected number.
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