What causes metadata.db to go corrupt?

Geremia · 11-29-2014, 01:49 PM

metadata.db has gone corrupt about 3× now during my years of using Calibre. What causes this?

theducks · 11-29-2014, 02:49 PM

Some Possibilities:

Rogue (misbehaving) antivirus. IMHO always make it ASK to clean
Failing internal Hard drive
Faulty (Mains) Power. A UPS is advised
The USER

messing with names in the Library folder

External storage issues:
Removing the drive BEFORE the 'Safe' message
Failing External drive (flash drives have higher fail rates)
Poor USB cable/connectors,
Marginal (USB self) powered drive Models
USB Hub congestion.
Using A Networked Drive
Allowing a Cloud drive to Sync TO the Active Library . Always pause Sync

JSWolf · 11-29-2014, 03:00 PM

Trying to access the same library from multiple computers at the same time
Cloud storage software access the database at the same time as Calibre

11-29-2014, 01:49 PM	#1
Geremia Addict Posts: 256 Karma: 100000 Join Date: Oct 2012 Device: Calibre	What causes metadata.db to go corrupt? metadata.db has gone corrupt about 3× now during my years of using Calibre. What causes this?

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11-29-2014, 02:49 PM	#2
theducks Well trained by Cats Posts: 31,047 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	Some Possibilities: Rogue (misbehaving) antivirus. IMHO always make it ASK to clean Failing internal Hard drive Faulty (Mains) Power. A UPS is advised The USER messing with names in the Library folder External storage issues: Removing the drive BEFORE the 'Safe' message Failing External drive (flash drives have higher fail rates) Poor USB cable/connectors, Marginal (USB self) powered drive Models USB Hub congestion. Using A Networked Drive Allowing a Cloud drive to Sync TO the Active Library . Always pause Sync

11-29-2014, 03:00 PM	#3
JSWolf Resident Curmudgeon Posts: 79,736 Karma: 145864619 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	Trying to access the same library from multiple computers at the same time Cloud storage software access the database at the same time as Calibre

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