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https://issues.apache.org/jira/browse/NIFI-2449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15417296#comment-15417296
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Andrew Lim commented on NIFI-2449:
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First draft of content to add to Getting Started guide after “Working with
Attributes” section:
Custom Properties within Expression Language
In addition to using FlowFile attributes, you can also define custom properties
for Expression Language use. Defining custom properties gives you additional
flexibility in processing and configuring dataflows. For example, you can
refer to custom properties for connection, server, and service properties.
When you define custom properties, ensure that the following criteria are met:
-Each custom property contains a distinct property value, so that it is not
overridden by existing environment properties, system properties, or FlowFile
attributes.
-Each node in a clustered environment is configured with the same custom
properties.
Once you have created custom properties, you can identify their location in the
nifi.variable.registry.properties field in the nifi.properties file. After you
have updated the nifi.properties file and restarted NiFi, you are able to use
custom properties as needed.
> Need to document Variable Registry work in 1.0
> ----------------------------------------------
>
> Key: NIFI-2449
> URL: https://issues.apache.org/jira/browse/NIFI-2449
> Project: Apache NiFi
> Issue Type: Bug
> Components: Documentation & Website
> Affects Versions: 1.0.0
> Reporter: Andrew Lim
> Assignee: Andrew Lim
> Fix For: 1.0.0
>
>
> Need to capture work done in NIFI-2208. Admin and Getting Started guides
> should be updated.
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