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Status Not under consideration
Categories Usability
Created by Guest
Created on Oct 10, 2022

To avoid partial files in distributed systems

If the transfer destination is Windows or Linux, ConnectDirect doesn’t work with temporary files. So, CD starts to write the filename with definitive filename.

So, if the transfer fails in the COPY step due to insufficient space or network issue, the partial file is saved. External filewatchers will execute a read processes using this partial file so the used file is not completed like a corrupted file.

What is your industry? Banking
How will this idea be used?

As a customer doing banking services, we need to work with uncorrupted files. If a transmission fails, a partial file must no be saved. We have file watchers running, outside of CD control, that are triggered when a filename appears. If we don't develop an additional run task, these file watchers will execute a read processes using this partial file so the used file is not completed like a corrupted file.

  • Guest
    Dec 19, 2022

    We disagree with that argument. CD is forcing to add steps in a transmission flow. We don't understand which is the technical reason why the CD cannot work with temporary files.

    These additional steps are increasing the complexity of the workflow, adding more points of failure, and there are increasing the elapsed time for the transmissions.

    Your suggestion is not "a very reliable way" to do that. CD should do this action internally without any external development doing by the customers.

  • Admin
    Chris Sanders
    Nov 18, 2022

    Thank you for opening this enhancement request with IBM. I have reviewed it thoroughly with my team. Unfortunately I don't think that we'll be able to deliver an enhancement to deliver exactly what you're looking for as partial files can have many different connotations. There is a reliable way to handle the situation that you appear to be describing however.


    I would suggest copying files to the remote system and initially dropping them in a "staging" directory on the same drive that you intend for them to be dropped in. You can then use the successful copy completion code to trigger a Run Task to move that file to the ultimate destination location which will trigger the downstream file watcher to grab the file and do whatever processing it does. This should be a very reliable way to handle network or drive glitches that you may be experiencing. If neede support can likley provide an example of what a process doing this could look like.


    Sincerely,

    Chris Sanders

    Connect:Direct Product Manager