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[Kristina Hoeppner <1606749@xxxxxxxxxxxxxxxxxx>]

** Changed in: mahara
   Importance: Undecided => Medium

** Changed in: mahara
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1606749

Title:
  Inconsistent file quota usage

Status in Mahara:
  Confirmed

Bug description:
  Mahara: 16.04.2
  DB: Postgres
  OS: Linux
  Browser: various

  File quota calculations are not syncing correctly for file upload when
  using multiple devices at the same time.

  This lets users surpass their quota by using different computers at
  the same time.

  I've also been able to replicate it by uploading multiple files at
  once. The usr.quotaused field doesn't get correctly accumulated after
  each file as it gets overwritten by the other file getting loaded.
  Perhaps a transaction is required?

  The cron job at the end of the day calculates the quota correctly but
  by then, the user has uploaded many times more than their quota

  For example, we were getting numbers such as 244% of their 500MB
  quota.

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