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https://issues.apache.org/jira/browse/NIFI-6762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16960070#comment-16960070
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Aram S Openden commented on NIFI-6762:
--------------------------------------
[~ste...@apache.org]
Please check out my PR (just posted today):
[https://github.com/apache/nifi/pull/3848.]
Let me know if this adequately answers your design questions or if I need to
provide more info. in some other format.
> New Processor - Watch Multiple S3 Buckets for content changes
> -------------------------------------------------------------
>
> Key: NIFI-6762
> URL: https://issues.apache.org/jira/browse/NIFI-6762
> Project: Apache NiFi
> Issue Type: New Feature
> Components: Extensions
> Affects Versions: 1.9.2
> Reporter: Aram S Openden
> Priority: Major
> Labels: Processor, S3, watch
> Original Estimate: 384h
> Remaining Estimate: 384h
>
> Proposing New S3 processor that is a "variation" on the existing ListS3
> Processor. For lack of better term, I will call this "Watch Multiple S3
> Buckets Processor" (naming here is open to feedback). This new Processor
> takes an input attribute "Bucket" from the FlowFile, which could use NiFi
> ExpressionLanguage to compute that value. Hence, the Processor could "watch"
> different buckets in an S3 Object Store.
> This processor must handle the State Management logic for multiple S3
> buckets. The simplest solution for this problem add to modify the State
> Management logic to prepend the bucket name to this key/objectName that is
> being used to track state.
> Finally, the Dev should document the maximum number of buckets it will
> monitor at once, maximum amount of state/storage it can have to track the
> various listings in various buckets.
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