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https://issues.apache.org/jira/browse/NIFI-15036?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18024503#comment-18024503
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Michael W Moser commented on NIFI-15036:
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I tested a CRON Driven schedule "* 25 * 2 * *" (every second of every hour on
the 25th minute of day-of-month 2) and "0 2 14 3 * *" (second 0 of minute 2 of
hour 14 of day-of-month 3) on GenerateFlowFile and it worked as expected.
Sorry, but I cannot duplicate this. Perhaps there is something else in your
flow going on?
> Cron works not as expected - not at 1st day of the month - on the second
> ------------------------------------------------------------------------
>
> Key: NIFI-15036
> URL: https://issues.apache.org/jira/browse/NIFI-15036
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 2.5.0
> Environment: RHEL 9
> Clustered mode - 4 nodes
> Reporter: WojciechWitos
> Priority: Major
> Attachments: image-2025-10-02-13-22-17-035.png,
> image-2025-10-02-13-25-29-979.png, image-2025-10-02-13-29-03-470.png
>
>
> NiFi flow is based on the cron triggered "Generate flow file".
> !image-2025-10-02-13-22-17-035.png!
>
> In the flow processing is happening, in the end we have an e-mail
> notification.
> We've noticed that we've received an E-mail notification on the second day of
> the month.
> Is this an issue with Cron in NiFi, or is it flow misconfiguration?
> Cron configured acording to: [Apache NiFi User
> Guide|https://nifi.apache.org/docs/nifi-docs/html/user-guide.html]
> !image-2025-10-02-13-25-29-979.png!
>
> And that we've received an message:
> !image-2025-10-02-13-29-03-470.png!
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