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https://issues.apache.org/jira/browse/NIFI-5482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16590948#comment-16590948
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ASF GitHub Bot commented on NIFI-5482:
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Github user alopresto commented on the issue:
https://github.com/apache/nifi/pull/2960
Ran a flow with multiple `GenerateFlowFile` processors creating flowfiles
with a `0 sec` schedule and feeding to a `LogAttribute` processor. Was able to
process ~350k flowfiles in about a minute. The provenance queries were
successful as well.
Verified the documentation now shows WAPR as the default and moved PPR
properties lower in docs.
Ran `contrib-check` and all tests pass. +1, merging.
> Make Write-Ahead Provenance Repository the default implementation
> -----------------------------------------------------------------
>
> Key: NIFI-5482
> URL: https://issues.apache.org/jira/browse/NIFI-5482
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Configuration
> Reporter: Mark Payne
> Priority: Major
> Labels: beginner, newbie
> Fix For: 1.8.0
>
>
> The default implementation for the Provenance Repository is the
> PersistentProvenanceRepository. The WriteAheadProvenanceRepository was added
> in version 1.2.0 of NiFi. We left the default as the
> PersistentProvenanceRepository only because it had been heavily tested over
> years of production use. Since then, the WriteAheadProvenanceRepository has
> proven to be not only significantly faster but also more stable and easier to
> maintain. When problems arise with the PersistentProvenanceRepository, the
> solution almost always is to change to the WriteAheadProvenanceRepository.
> Given this, we should now change the default implementation to be the
> WriteAheadProvenanceRepository.
> This involves changing the default value in the POM of nifi-resources and
> also updating the Admin Guide to note the new default and review the guide
> for any other wording that may need to be updated.
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