[#MDL-14269] META: Backup performance

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Key:	MDL-14269
Type:	Bug
Status:	Open
Priority:	Minor
Assignee:	Dan Marsden
Reporter:	Dan Marsden
Votes:	2
Watchers:	5

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Moodle

META: Backup performance

Created: 09/Apr/08 05:51 AM Updated: 14/May/09 02:53 AM

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Component/s:

Backup

Affects Version/s:

1.9

Fix Version/s:

2.0

Issue Links:

Dependency

This issue will help resolve:

~~MDL-7899~~ A huge optimization to user_files_check_backup() (with patch)

MDL-12009 "Fatal Error: Possible Integer Overflow..." during Moodle cronjob of forum posts and course backups

~~MDL-8092~~ Backup Failure for Course with Large File Sizes or Large Number of Students

~~MDL-12562~~ Backup process generate big memory footprint and would stop when have huge number of users

~~MDL-14550~~ backup\backuplib.php user_files_check_backup() is invalid

~~MDL-9838~~ Large number of quiz attempts (effectively) break backup

~~MDL-12594~~ Restoring a course with 400 users enrolled costs 13k DB queries

MDL-12780 Insufficien memory problem while recovering backup

Relates

This issue has a non-specific relationship to:

MDL-13296 USERS section is processed twice one restore, only one should be necessary

~~MDL-14072~~ backuplib.php performance improvement for the function full_tag()

Participants:	Brian Jorgensen, Dan Marsden and Wen Hao Chuang
Security Level:	None
Affected Branches:	MOODLE_19_STABLE
Fixed Branches:	MOODLE_20_STABLE

Description

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This is a meta bug to keep track of issues with backups due to performance

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Change History

Version Control

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Dan Marsden made changes - 09/Apr/08 05:55 AM

Field	Original Value	New Value
Link		This issue will help resolve ~~MDL-7899~~ [ ~~MDL-7899~~ ]

Dan Marsden made changes - 09/Apr/08 05:56 AM

Link

This issue will help resolve ~~MDL-8092~~ [ ~~MDL-8092~~ ]

Dan Marsden made changes - 09/Apr/08 05:59 AM

Link

This issue will help resolve ~~MDL-9838~~ [ ~~MDL-9838~~ ]

Dan Marsden made changes - 09/Apr/08 06:36 AM

Link

This issue will help resolve MDL-12009 [ MDL-12009 ]

Dan Marsden made changes - 09/Apr/08 06:43 AM

Link

This issue will help resolve ~~MDL-12562~~ [ ~~MDL-12562~~ ]

Dan Marsden made changes - 09/Apr/08 06:45 AM

Link

This issue will help resolve ~~MDL-12594~~ [ ~~MDL-12594~~ ]

Dan Marsden made changes - 09/Apr/08 06:46 AM

Link

This issue will help resolve MDL-12780 [ MDL-12780 ]

Dan Marsden made changes - 09/Apr/08 06:47 AM

Link

This issue has a non-specific relationship to MDL-13296 [ MDL-13296 ]

Dan Marsden made changes - 09/Apr/08 07:02 AM

Link

This issue has a non-specific relationship to ~~MDL-14072~~ [ ~~MDL-14072~~ ]

Dan Marsden made changes - 29/May/08 09:17 AM

Link

This issue will help resolve ~~MDL-14550~~ [ ~~MDL-14550~~ ]

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