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SAP's SFTP SP1 adapter polling interval anomaly

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Hi,

 

I have just been testing the SAP SFTP SP2 adapter. We are using PI 7.1 SP1 and for the last couple of years been using the SAP SFTP adapter pre SPs.

I had the duplicate check turned off and what I have observed was that on the node doing the processing the file was picked up multiple times before the next polling interval. The polling interval was set at 1 minute and the actual interval between the two polls was 10 seconds.

 

I then changed the polling interval to 5 minutes and I observed the following:

  1. First poll occurred 3 seconds after starting the channel (before SP1 the first poll would not occur until after one whole polling interval). The file is renamed by an OS command to remove the pgp extension.
  2. Second poll occurred 10 seconds after first. rename would have failed as file with new name would already exist (this is OK, I expected this please no comments about renaming files.) File with pgp extension was over written.
  3. A third poll occurred 10 seconds after the first one. File with pgp extension was over written.

 

I then removed from the receiver channel the OS command to rename the file, so as to remove the possibility that the adapter was doing a check to see the file was successfully created on the receiver side and the rename was interfering with this (I thought this would be highly unlikely but it had to be tested). I got results similar to the second test.

 

Looked through the notes on SAP and could not find anything relevant.

Has anyone else noticed this anomaly and found a fix for it?

 

regards

Julian


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