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https://issues.apache.org/jira/browse/NIFI-5642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17796476#comment-17796476
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André Gomes Lamas Otero commented on NIFI-5642:
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[~mattyb149] check the logic at AbstractCassandraProcessor. It is precisely
what you are describing.
The code updates from levilentz ([https://github.com/apache/nifi/pull/6848)]
were made on top of the old 2018 history, thus the misleading commit messages
from the old history.
> QueryCassandra processor : output FlowFiles as soon fetch_size is reached
> -------------------------------------------------------------------------
>
> Key: NIFI-5642
> URL: https://issues.apache.org/jira/browse/NIFI-5642
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 1.7.1
> Reporter: André Gomes Lamas Otero
> Assignee: Levi Lentz
> Priority: Major
> Fix For: 2.0.0-M1, 1.22.0
>
> Time Spent: 4h 10m
> Remaining Estimate: 0h
>
> When I'm using QueryCassandra alongside with fetch_size parameter I expected
> that as soon my reader reaches the fetch_size the processor outputs some data
> to be processed by the next processor, but QueryCassandra reads all the data,
> then output the flow files.
> I'll start to work on a patch for this situation, I'll appreciate any
> suggestion.
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