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https://issues.apache.org/jira/browse/NIFI-5034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16424100#comment-16424100
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ASF subversion and git services commented on NIFI-5034:
-------------------------------------------------------
Commit 364985fb412790155bd2665e861de046c42dddb8 in nifi's branch
refs/heads/master from [~mcgilman]
[ https://git-wip-us.apache.org/repos/asf?p=nifi.git;h=364985f ]
NIFI-5034:
- Processing properties and property descriptors in Controller Service
referencing components unconditionally.
This closes #2602.
Signed-off-by: Mark Payne <[email protected]>
> Error in Controller Service with dynamic property in Cluster environment
> ------------------------------------------------------------------------
>
> Key: NIFI-5034
> URL: https://issues.apache.org/jira/browse/NIFI-5034
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.4.0, 1.5.0
> Reporter: Mark Bean
> Assignee: Matt Gilman
> Priority: Major
>
> Environment: Controller Service provides a lookup service to other Controller
> Services. To configure, the lookup CS uses dynamic properties where the key
> is an arbitrary name and the value is an existing Controller Service.
> In a cluster environment only (this is not an issue for stand-alone
> environment), the UI displays returns "An unexpected error has occurred" due
> to http 500 return code. This occurs when attempting to configure the
> controller service with the dynamic property. Additionally, it throws the
> same error (http 500) when trying to configure the process group owning the
> lookup controller service. (The property on the controller service is created
> despite the 500 return code.)
> Diving into the code a bit, the fact of being a "cluster only" issue is in
> FlowResource.java:400.
> if (isReplicateRequest()) {
> return replicate(HttpMethod.GET);
> }
> The problem is the return value is null even when controller services exist.
> Ultimately, ApplicationResource.java:288 parses a map of http servlet
> parameters. The controller service should be a parameter. Yet, this map is
> empty.
> for (final Map.Entry<String, String[]> entry :
> httpServletRequest.getParameterMap().entrySet()) \{ ... }
> This problem is preventing the implementation of a Controller Service with
> dynamic properties (whose property values are other Controller Services) in a
> cluster environment.
>
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