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https://issues.apache.org/jira/browse/NIFI-4943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph Witt updated NIFI-4943:
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Priority: Major (was: Blocker)
> Batch Duration capability from ExecuteProcess added to ExecuteStreamCommand
> ---------------------------------------------------------------------------
>
> Key: NIFI-4943
> URL: https://issues.apache.org/jira/browse/NIFI-4943
> Project: Apache NiFi
> Issue Type: Improvement
> Affects Versions: 1.5.0
> Reporter: Oleksandr Lobunets
> Priority: Major
>
> It would be great to let the ExecuteStreamCommand processor to send FlowFiles
> per chunk of stdout using a given separator (common case: for each line from
> stdout).
> I have a case of running the 3rd party CLI (linux) with the following
> behaviour:
> - Should be executed upon a FlowFile with attributes/content containing
> parameters to CLI
> - Accepts params via flags or environment variables
> - Writes output to stdout as a stream of JSON objects
> - The output might be huge (millions and millions of objects), which means
> caching stdout is not an option - each line/object should be sent as a
> separate FlowFile
> - The errors/log is written to stderr (might be very chatty)
> Using ExecuteProcessor is not an option (cannot be trigger by incoming
> FlowFile), but the way it treats stdout is what is desired.
> Using ExecuteStreamCommand is not an option as it buffers the output until
> the binary exists with a status code 0.
>
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