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Files are hard

danluu.com · 4,981 words · saved by 1 readers

I haven't used a desktop email client in years. None of them could handle the volume of email I get without at least occasionally corrupting my mailbox. Pine, Eudora, and outlook have all corrupted my inbox, forcing me to restore from backup. How is it that desktop mail clients are less reliable than gmail, even though my gmail account not only handles more email than I ever had on desktop clients, but also allows simultaneous access from multiple locations across the globe? Distributed systems have an unfair advantage, in that they can be robust against total disk failure in a way that desktop clients can't, but none of the file corruption issues I've had have been from total disk failure. Why has my experience with desktop applications been so bad? Well, what sort of failures can occur? Crash consistency (maintaining consistent state even if there's a crash) is probably the easiest property to consider, since we can assume that everything, from the filesystem to the disk, works corre

Files are hard I haven't used a desktop email client in years. None of them could handle the volume of email I get without at least occasionally corrupting my mailbox. Pine, Eudora, and outlook have all corrupted my inbox, forcing me to restore from backup. How is it that desktop mail clients are less reliable than gmail, even though my gmail account not only handles more email than I ever had on desktop clients, but also allows simultaneous access from multiple locations across the globe? Distributed systems have an unfair advantage, in that they can be robust against total disk failure in a

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