This increments a tracking counter for use by another script. The problem is that the data file goes blank randomly.

You have a timing window in the code. Consider what happens if you execute   open(file, ">$mailclicks); immediately before another process obtains a lock. They now read (and will later write) a blank file.

You might want to expand the lifetime of the lock to encompas the entire process.

In reply to Re: Blank data file by dws
in thread Blank data file by Anonymous Monk

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