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Task #442
closedtest restoring of import backups
Start date:
07/16/2012
Due date:
% Done:
100%
Estimated time:
Activity type:
Updated by Aaron Marcuse-Kubitza over 12 years ago
Options:
- testing if the export can be restored
- comparing plain text exports of the DB and the restore file
- WAL Archiving
- requires separate machine for live backup
Updated by Aaron Marcuse-Kubitza over 12 years ago
- Status changed from New to Resolved
- % Done changed from 0 to 100
I tested restoring by extracting the compressed, custom-format backup to a plain text SQL script1. This is much faster than restoring to DB, while still testing whether the archive is valid. For the most recent backup, I also tested restoring it on my local machine, which takes ~50 min2. (Backing up takes ~25 min3.)
1 make backups/public.<date>.backup/test &
Note that the compressed format is 9x smaller than plain text: 7.5 GB for all backups vs. 67.5 GB (75 GB - 7.5 GB after all were extracted)
2 make backups/public.2012-07-12-13-34-33.backup/restore &
:
3048.69 real 25.65 user 7.26 sys
3 make schemas/public.2012-07-12-13-34-33.backup &
:
1508.94user 26.71system 25:57.51elapsed 98%CPU (0avgtext+0avgdata 38256maxresident)k 3448inputs+2220544outputs (57major+6427minor)pagefaults 0swaps
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