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https://issues.apache.org/jira/browse/NIFI-7559?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mohammed Nadeem updated NIFI-7559:
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Attachment: (was: image-2020-06-19-02-50-27-674.png)
> NiFi Cluster page shows multiple entries for same node identity
> ---------------------------------------------------------------
>
> Key: NIFI-7559
> URL: https://issues.apache.org/jira/browse/NIFI-7559
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework, Core UI
> Affects Versions: 1.9.1, 1.9.2
> Environment: Linux
> Reporter: Mohammed Nadeem
> Priority: Major
> Attachments: image-2020-06-19-02-52-35-420.png
>
>
> In a containerized environment, When a NiFi node doesn't meet health probes
> performed by Kubelet (Kubernetes), then the node is killed and restarted.
> This may loop continuously causing *NiFi Cluster page* ( Hamburger Menu ->
> Cluster ) to show multiple entries for the same node that gets restarted
> again and again.
> To replicate the issue:
> 1. Setup single-node cluster ( statefulset application with replicaCount = 1)
> 2. Change configured probes such as Startup or Liveness to duration less than
> regular node start up time .
> 3. Scale new node (replicaCount), for example from 1 to 2. Then new scaled
> node *node-1* gets killed and restarted continuously by kubelet .
> Please check the screenshot below.
> *nifi-1:8080* is being added 7 times when it should be added just once, This
> shows incorrect *1/8* nodes cluster summary when expected behavior is just
> 1/2 nodes .
> !image-2020-06-19-02-50-27-674.png!
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