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https://issues.apache.org/jira/browse/NIFI-12203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17774199#comment-17774199
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ASF subversion and git services commented on NIFI-12203:
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Commit 3f13604c365ac9205b9a8dc2782bf13a08b76b26 in nifi's branch
refs/heads/main from Simon Bence
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=3f13604c36 ]
NIFI-11772 Removed flow.xml.gz support
- Created NIFI-12203 to evaluate issues with flow comparison surfaced in
JoinClusterWithDifferentFlow
This closes #7661
Signed-off-by: David Handermann <exceptionfact...@apache.org>
> JSON Sync does not delete controller level items
> ------------------------------------------------
>
> Key: NIFI-12203
> URL: https://issues.apache.org/jira/browse/NIFI-12203
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 2.0.0
> Reporter: Simon Bence
> Priority: Blocker
>
> JSON based flow synchronization looks to behave differently than XML in
> regards of controllel level components: while XML cleans up "removed"
> components from the current flow, the JSON keeps them. This happens in case
> of
> [JoinClusterWithDifferentFlow|https://github.com/apache/nifi/blob/main/nifi-system-tests/nifi-system-test-suite/src/test/java/org/apache/nifi/tests/system/clustering/JoinClusterWithDifferentFlow.java#L240]
> where components within the root group are "replaced" as the tests expects
> but the controller level Controller Service is not.
> Running the test using JSON synchronizer results two Controller Services in
> the memory representation of the flow definition on node 2: both the services
> from flow1 and flow2 are part of the synced flow.
> After some testing, it looks like
> [this|https://github.com/apache/nifi/blob/main/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/controller/serialization/VersionedFlowSynchronizer.java#L900]
> method and other methods in the "inherit*" method family will not clean up
> components are not present in the proposed flow.
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