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Type: Bug
Resolution: Fixed
Priority: Critical
Fix Version/s: STABLE backlog, BACKEND
Affects Version/s: 2.1, 2.1.1, 2.3.3, 2.4
Component/s: Backup, Performance, Quiz
Labels:
- partner
- triaged

Database:

Any
Affected Branches:
MOODLE_21_STABLE, MOODLE_23_STABLE, MOODLE_24_STABLE
Epic Link:
Restore performance

When restoring a backup (Moodle 2 mbz) containing 120 quizzes it takes a long time to complete the restore. To restore the previous course it took 10 minutes on a 4 processor, 16 GB RAM MySQL Database Server.

When the subject was backed up and restored in a Moodle 1.9 environment the restore takes 2 minutes.

We can provide 10 backup samples but not on this public tracker. This is due the presence of copyrighted documents in the backup.

has a non-specific relationship to

MDL-27120 Backup / Restore / Import performance optimisations

Closed

MDL-26442 Error when importing quiz with system level questions from Moodle 2.0 course (which was imported from 1.9) to another Moodle 2.0 course on the same site

Closed

has been marked as being related by

MDL-40579 Restore performance improvements

Closed

MDL-39725 PostgreSQL performance can be poor with large temp tables

Closed

MDL-44813 restoring courses in 2.6.1 very slow

Closed

is duplicated by

MDL-35340 B&R or importing course with large question bank failed on IIS

Closed

will be (partly) resolved by

MDL-39726 Question restoration should not use a loop over questions, it can be done once per context

Closed

MDL-40581 backupidsexists and backupidscache could be used more effectively

Open

(1 is duplicated by, 2 will be (partly) resolved by)

Assignee:: Russell Smith

Reporter:: Juan Leyva

Participants:: Bill Burgos, Chris Follin, Dirk Meyer, Eloy Lafuente (stronk7), Eric Merrill, Juan Leyva, Kris Stokking, Marina Glancy, Matt Moses, Michael de Raadt, Pawo509, Russell Smith, Tim Hunt

Votes:: 31 Vote for this issue

Watchers:: 27 Start watching this issue

Created:: 21/Sep/11 2:00 AM

Updated:: 28/Jul/18 1:16 AM

Resolved:: 08/Jun/16 6:05 PM

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