** Changed in: mahara/15.04
Milestone: 15.04.8 => 15.04.9
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https://bugs.launchpad.net/bugs/1500285
Title:
Add path and update records slowness
Status in Mahara:
Confirmed
Status in Mahara 15.04 series:
Confirmed
Status in Mahara 15.10 series:
Confirmed
Status in Mahara 16.04 series:
Confirmed
Status in Mahara 16.10 series:
Confirmed
Bug description:
Upgrade Issue 1 - Add path and update records :
This adds a field 'path' to artefact table and thereafter runs a
update query to add data. We have around 500K rows and this takes
around 94 minutes to upgrade! This can be done in one go without the
limit of 200 and it works very well taking around 2-3 minutes!
Few times the upgrade failed due to "mysqli error: [1205: Lock wait
timeout exceeded; try restarting transaction]".
This is spun off from Bug #1499568
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