Large File issue in AL11 in SAP PI 7.31

Hi Experts,

We are working on SAP PI 7.31 SP18. Our scenario is file to file but since the actual file placed from source to shared folder in PI[AL11] is very big[say around 125 MB]

In step1, PI is creating another trigger file placed in same folder which is a dummy file which will be polled by NFS channel in step 2.

In step2, PI is polling trigger file and posting it to another middleware[receiver to PI] based on which that middleware will poll the actual file from shared folder[say 125 MB file].

But we are sometimes facing issue like even though trigger file is created and pushed to middleware[receiver to PI] , still the actual file is residing or sitting on PI shared folder.

Please guide us to resolve the issue.

Thanks,

Ramu.