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https://issues.apache.org/jira/browse/NIFI-9475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17492864#comment-17492864
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ASF subversion and git services commented on NIFI-9475:
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Commit 63a543cd672bc9ab053b6b6d448570ab8b4b4aaa in nifi's branch
refs/heads/main from timeabarna
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=63a543c ]
NIFI-9475 Provide Framework-Level Retries for NiFi Relationships (#5593)
> Provide Framework-Level Retries for NiFi Relationships
> ------------------------------------------------------
>
> Key: NIFI-9475
> URL: https://issues.apache.org/jira/browse/NIFI-9475
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Timea Barna
> Assignee: Timea Barna
> Priority: Major
> Time Spent: 2h 20m
> Remaining Estimate: 0h
>
> For a processor that routes to failure, in NiFi I have 3 options:
> 1) Loop 'failure' back to the processor and retry forever
> 2) Auto-terminate or route the data elsewhere without any retries
> 3) Build a complex retry loop that creates or updates an attribute, routes on
> that attribute to determine whether or not we've exceeded the maximum number
> of retries, and if not penalizes the FlowFile (typically with a Script
> processor) and then routes back to try the FlowFile again.
> This provides a poor user experience and poor performance and results in very
> complex flows that are difficult to understand and maintain.
> As a user, when I configure a Processor, I should be able to indicate that
> for Relationship ABC, I want to retry the FlowFile 5 times. Then, if the
> Processor transfers a FlowFile to that relationship, it should instead
> transfer the FlowFile back to its original queue and increment the transfer
> count for that relationship from 0 to 1 and penalize the FlowFile. If the
> Processor processes it again and transfers it to the same Relationship again,
> it'll again put it back to the original queue and increment the count to 2.
> Only when the data is routed to that Relationship 5 times (because that's the
> configured retry count in this example) should the FlowFile actually be
> transferred to that corresponding connection(s) or auto-terminated, as the
> flow is configured.
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