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https://issues.apache.org/jira/browse/NIFI-2974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andy LoPresto updated NIFI-2974:
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Labels: configuration customization variable (was: beginner tls ui)
> Allow for per-instance configuration values to override defaults for
> component properties
> -----------------------------------------------------------------------------------------
>
> Key: NIFI-2974
> URL: https://issues.apache.org/jira/browse/NIFI-2974
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Affects Versions: 1.0.0
> Reporter: Andy LoPresto
> Labels: configuration, customization, variable
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> A nice feature would be to allow per-user or per-instance configuration
> values that could override default values for components (processors,
> controller services, reporting tasks).
> For example, in every {{GenerateFlowFile}} processor I add to a flow, I
> generally want to change the *Run Schedule* from {{0 secs}} to {{1 sec}} to
> stop from flooding the flow. In every {{LogAttribute}}, I want to log the
> payload, so I change that value to {{true}}. As this issue originally stated,
> an {{SSLStandardContextService}} often needs to be created with the default
> keystore/truststore paths or with the
> {{/Library/Java/JavaVirtualMachines/jdk<version>.jdk/Contents/Home/jre/lib/security/cacerts}}
> path.
> However, I do not believe these values are standard across the install base
> of the application, so I cannot change them in the source code to impact all
> users. I think being able to populate the Variable Registry with these values
> using the FQDN of the component class and property would be an important
> feature.
> Example variable registry file (side note -- another good reason to enforce
> property descriptors having a {{.name()}} without spaces and a
> human-formatted {{.displayName()}}):
> {code}
> org.apache.nifi.processors.standard.LogAttribute.Log\u0020Payload=true
> org.apache.nifi.processors.standard.GenerateFlowFile.generate-ff-custom-text=This
> is a plaintext message.
> ...
> {code}
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