node.js - When to save user data to disk? -


i've been getting web applications , node.js lately, , it's obvious should write user data disk, when should i? bit overkill , resource intensive write disk every time data updated, when should you?

simple, safe method: memory cache , disk saving

i'd recommend creating temporary memory (ram) cache store user data. (for data of active users)

this temporary disk cache should read , written though normal on-disk user save data. ensure every once in while cached data written disk, , you're go.

warnings / tips

  • do not cache of data. (if expect have larger data ram on machine.) instead, cache user data of logged in / active users speed , efficiency.
  • ensure autosave delay short enough avoid risk in case of crash. crashes happen. prepared.

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