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Posted to issues@nifi.apache.org by "ASF subversion and git services (Jira)" <ji...@apache.org> on 2021/06/01 12:39:00 UTC
[jira] [Commented] (NIFI-8522) NiFi can duplicate controller
services when generating templates
[ https://issues.apache.org/jira/browse/NIFI-8522?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17355076#comment-17355076 ]
ASF subversion and git services commented on NIFI-8522:
-------------------------------------------------------
Commit f23dcb05f6d6c869fab453634bf094a01b42d121 in nifi's branch refs/heads/main from Timea Barna
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=f23dcb0 ]
NIFI-8640 Regression with NIFI-8522 NiFi can duplicate controller service during template generation
This closes #5109.
Signed-off-by: Tamas Palfy <ta...@gmail.com>
> NiFi can duplicate controller services when generating templates
> ----------------------------------------------------------------
>
> Key: NIFI-8522
> URL: https://issues.apache.org/jira/browse/NIFI-8522
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Matthew Clarke
> Assignee: Timea Barna
> Priority: Major
> Fix For: 1.14.0
>
> Attachments: Screen Shot 2021-05-25 at 2.55.10 PM.png, Screen Shot 2021-05-25 at 2.55.33 PM.png
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> NiFi throws "The specified observer identifier already exists" exception when trying to instantiate a template to the canvas. Parsing the template xml reveals multiple controller services with same UUID.
> Steps to reproduce:
> 1. Create "PG-level1"
> 2. within "PG-level1" create two new sub process groups "PG-level2-A" and "PG-level2-B".
> 3. Create a controller service(s) in "PG-level2-A" like AvroReader and CSVRecordSetWriter. Add a processor like ConvertRecord and configure it to reference these two controller services.
> 4. Right click on the ConvertRecord processor and copy it. Exit "PG-level2-A" and enter "PG-level2-B" and paste that copy processor. The processor will show both configured controller services as "Incompatible Controller Service Configured" and invalid bulletin will reflect the properties reference controller services that do not exist.
> 5. go up to "PG-level1" level and generate a template. Template is created successfully.
> 6. Try to instantiate this template to the canvas and it will only partially instantiate and throw the "observer identifier already exist exception.
> Inspection of the template shows that the controller services scoped to PG-level2-A were added into the template again at the parent "PG-level1" scope with same UUID.
> The expected behavior is that the controller services do not get duplicated and the processor in the instantiate template either has no configured controller services or still reflects that it references controller service(s) that do not exist.
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