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Question

directory watch: how does it work?

  • February 3, 2020
  • 3 replies
  • 238 views
vki
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  • vkiContributor
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  • 64 replies

Just out of interest:

 

How does FME detect, that a directory has changed?

Does it store the information about the files in the directory at a given time in a file? So that when the directory watch is triggered it can compare the new informations of the files in the directory at that time to that file?

Or how else does it keep track?

Thanks, Vera

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    3 replies

    danilo_fme
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    • danilo_fmeCelebrity
    • Celebrity
    • 2077 replies
    • February 3, 2020

    Hi @vki

    I suggest you to wacht this interesting Video

     

    Thanks in Advance,

    Danilo

    Partner Solutial Brazil - www.solutial.com.br
    vki
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    • vkiContributor
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    • 64 replies
    • February 7, 2020

    Thanks, Danilo, but my directory watch is working fine. I just wondered, how FME_Server knows, that something in the directory has changed...?

    H
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    • hollyatsafe
    • 719 replies
    • February 7, 2020

    Hi @vki,

    The Directory Watch protocol in FME Server monitors files based on their file size (see the note in the Documentation here).

    For FME Server 2020 we have made improvements so that Directory Watch with also monitor the timestamp to ensure if there is a modify event and the file size remains the same the trigger is still sent.

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