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We are upgrading from a single web server to 3 load balanced web servers using Stingray and Linux OS. We currently use PHP FLOCK to access a file which provides a unique sequence number to web page requests. Does FLOCK still work with load balanced servers or will we have to put that logic in mySQL to provide exclusive locking?

user610342
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  • Is the file available to all servers (the same file and not copies of the file)? It would make sense (IMHO) to move this logic to the database though. – Nigel Ren Mar 07 '21 at 15:04
  • Yes, there is only one file - not 3 copies of it. Each time any server requests a unique number the file is updated. – user610342 Mar 07 '21 at 16:02

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