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NIFI-13777: Fixed stateless group startup around Controller Services …#9291

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exceptionfactory merged 1 commit intoapache:mainfrom
markap14:NIFI-13777
Sep 20, 2024
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NIFI-13777: Fixed stateless group startup around Controller Services …#9291
exceptionfactory merged 1 commit intoapache:mainfrom
markap14:NIFI-13777

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…by changing the startup logic in two ways. First, we enable Controller Services before we create the Stateless Flow. Secondly, we do not bother enabling the ephemeral Controller Services that are created during the Stateless Flow creation/synchronization. This ensures that if Processors make use of a Controller Service during its @OnScheduled method (which is part of the Stateless Flow initialization process) that the Controller Service is Enabled. It also avoids calling @onEnabled methods of Controller Services that will never actually be used, as Processors make use of the existing Controller Services when running within standard NiFi

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NIFI-00000

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  • Pull Request title starts with Apache NiFi Jira issue number, such as NIFI-00000
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…by changing the startup logic in two ways. First, we enable Controller Services before we create the Stateless Flow. Secondly, we do not bother enabling the ephemeral Controller Services that are created during the Stateless Flow creation/synchronization. This ensures that if Processors make use of a Controller Service during its @OnScheduled method (which is part of the Stateless Flow initialization process) that the Controller Service is Enabled. It also avoids calling @onEnabled methods of Controller Services that will never actually be used, as Processors make use of the existing Controller Services when running within standard NiFi
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Thanks for resolving this issue with stateless execution mode @markap14. The changes and tests look good! +1 merging

@exceptionfactory exceptionfactory merged commit e9577de into apache:main Sep 20, 2024
ravinarayansingh pushed a commit to ravinarayansingh/nifi that referenced this pull request Oct 1, 2024
…pache#9291)

Fixed stateless group startup around Controller Services by changing the startup logic in two ways. First, we enable Controller Services before we create the Stateless Flow. Secondly, we do not bother enabling the ephemeral Controller Services that are created during the Stateless Flow creation/synchronization. This ensures that if Processors make use of a Controller Service during its @OnScheduled method (which is part of the Stateless Flow initialization process) that the Controller Service is Enabled. It also avoids calling @onEnabled methods of Controller Services that will never actually be used, as Processors make use of the existing Controller Services when running within standard NiFi .

Signed-off-by: David Handermann <exceptionfactory@apache.org>
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2 participants