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A "regular file" isn't going to cut it for you. For such concurrent access to work and be robust at least each update to the file must be serialized to ensure the queue's integrity.

There are several ways around the problem, but none are altogether trivial. Probably the easiest way to do it is to set up a transacted database to manage the queue. Even using transacted updates some care needs to be taken to ensure queue item insertion and removal are handled correctly.

Premature optimization is the root of all job security

In reply to Re: Sync item list between perl scripts, across servers by GrandFather
in thread Sync item list between perl scripts, across servers by reinaldo.gomes

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