[jira] [Commented] (NIFI-12409) ListSFTP processor increases thread count when it is stopped

["Jeetendra G Vasisht (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-12409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17843712#comment-17843712 ] 

Jeetendra G Vasisht commented on NIFI-12409:
--------------------------------------------

Is there any improvements or updates on this? Please let us know if there is a resolution being planned or implemented for this in future Nifi Versions.

Thank you.

> ListSFTP processor increases thread count when it is stopped
> ------------------------------------------------------------
>
>                 Key: NIFI-12409
>                 URL: https://issues.apache.org/jira/browse/NIFI-12409
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Extensions
>    Affects Versions: 1.22.0
>            Reporter: Jeetendra G Vasisht
>            Priority: Critical
>         Attachments: image-2023-11-24-11-23-52-497.png, image-2023-11-24-11-24-23-019.png
>
>
> We are using ListSFTP processor that is configured with "Concurrent tasks = 1". If it is stopped on the nifi UI while it is processing (showing 1 thread running), automatically after the stop, it shows 2 threads:
> !image-2023-11-24-11-23-52-497.png|width=368,height=167!
> After this, when we start this processor it will always run with 2 threads:
> !image-2023-11-24-11-24-23-019.png|width=375,height=172!
> and that affects the functionality of the processor. Many times, when it runs, it will list more files than expected.
>  
> If the processor is later stopped while having 2 threads running, it will also add an additional thread to the existing ones. Each time this stop and start happens as described one by one additional threads are added to the Processor.
>  
> This is fixed only by stopping the processor when it's not running (I.e. no threads are running). After stopping in this condition, when it is started it will run again with only one thread.
>  
> Same issue occurs with ListFTP processor.
>  
> Note: We are running in a non cluster mode (having just one replica).
>  
> Because this was found in two default NiFi processors, We are raising this ticket to NiFi



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