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Polling by file adapter (sender) with FIFO functionality

Hi,

here are one question:

What happen if, for example, the sender system generates multiple files with the same timestamp (HH:MM:SS), or the file adapter on XI is stopped for a moment, and then, when activated, in the source directory (polling directory) there are many files? How can XI handle the correct sequence of messages? Is this impossible. How XI poll on a file (sender) - what is the logic? The files should be polled by FIFO.

Thanks in advance.

Regards

Frank

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5 Answers

  • Posted on Jun 13, 2008 at 01:35 PM

    Hi,

    There is a logic called EOIO. Its exactly once in Order (EOIO). It takes care of all these iisues. Also XI gurantees the delivery of files.

    Refer these links

    http://help.sap.com/saphelp_nw04/helpdata/en/e3/94007075cae04f930cc4c034e411e1/content.htm

    Regards

    Aashish Sinha

    PS ; reward points if helpful

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  • author's profile photo Former Member
    Former Member
    Posted on Jun 13, 2008 at 01:45 PM

    EOIO does not process files in the order of time stamp used in file name. What ever file is picked by the sender adapter first is delivered first. But it can not pick the files based on time stamp.

    Regards,

    Jaishankar

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  • Posted on Jun 13, 2008 at 01:48 PM

    You can use EOIO in QOS parameter with queue name provided

    EOIO:

    Messages are delivered with the same queue names in the same sequence that they were sent from the sender system. Message processing is asynchronous in this case

    http://help.sap.com/saphelp_nw04/helpdata/en/41/b714fe5ffc11d5b3ea0050da403d6a/frameset.htm

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  • author's profile photo Former Member
    Former Member
    Posted on Jun 14, 2008 at 10:22 AM

    Hi,

    Suppose your Quality Of Service is exactly once in Order (EOIO), then It takes care of this type issues.

    Some times we gives priority to the Queues also based on that priority it can execute.

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  • author's profile photo Former Member
    Former Member
    Posted on Jun 15, 2008 at 03:49 AM

    Hey

    If you have given transport protocol as NFS then files are either processed in alphabetical order(if processing sequence is "by Name") or by Last modification timestamp(if processing sequence is "by Date").

    If transport protocol is FTP then files are always processed in alphabetical order

    for more information check question 12 of SAP Note 821267

    Thanx

    Aamir

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