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https://issues.apache.org/jira/browse/NIFI-2208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15402451#comment-15402451
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ASF GitHub Bot commented on NIFI-2208:
--------------------------------------
Github user YolandaMDavis commented on the issue:
https://github.com/apache/nifi/pull/754
@joewitt all looks good tested on standalone and on cluster including tests
ensuring precedence on attribute lookup was maintained. Also negative
integration test for non existent files ran without issue.
Recommend to note in documentation that with the current implementation the
concept of cluster scope vs node scope is not yet available therefore each node
in a cluster environment would need to be configured with the same custom
properties to ensure any matching expected across the cluster.
> Support Custom Properties in Expression Language - 1.x baseline
> ---------------------------------------------------------------
>
> Key: NIFI-2208
> URL: https://issues.apache.org/jira/browse/NIFI-2208
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Mark Payne
> Assignee: Yolanda M. Davis
> Priority: Blocker
> Fix For: 1.0.0
>
>
> NIFI-1974 addressed this for the 0.x baseline but the PR does not apply
> cleanly to the 1.x baseline. Creating a separate JIRA for 1.x so that we can
> close out NIFI-1974 since 0.7.0 is ready to be released.
> The VariableRegistry is:
> - User defined properties
> - System Properties (at startup)
> - OS Environment Variables (at startup)
> Then for substitution the values can be replaced using the following logic in
> the following order
> 1) Any supplied attribute maps (in order)
> 2) If flow file supplied then its properties
> 3) If flow file supplied then its attributes
> 4) Variable Registry (and its ordering as shown above).
> Finally the following processor properties should be enabled to support
> expression language:
> Put HDFS/Get HDFS/List HDFS
> - Directory property
> ConsumeJMS/PublishJMS
> - Destination Name property
> MS Connection Factory Provider
> -MQ ConnectionFactory Implementation (fqn classname)
> -MQ client library path
> -Broker URI
> DBCP Connection Pool:
> -Database Connection URL
> -Database Driver Class Name
> -DB Driver jar url
> -DB username
> -DB password
> ConvertCSVToAvro
> -add EL support for the following property
> -csv charset
> -and below...
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