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[Bug 585358] Re: Merge of incremental snapshot metadata is much too slow (Python process runs 100% CPU)

 

-Processors-
Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz		: 1596.00MHz
Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz		: 1596.00MHz
-Memory-
Total Memory		: 2035272 kB
last incremental backup

2010-05-28 21:50:49,315 - INFO in BackupManager.__fillSnapshot(394): Maximum free size required is '393 MiB 139 KiB 847'.
2010-05-28 21:50:49,316 - INFO in BackupManager.__fillSnapshot(395): Available disk size is '47189 MiB 780 KiB 0'.
2010-05-28 21:50:49,316 - INFO in BackupManager.__fillSnapshot(396): Number of directories: 5421.
2010-05-28 21:50:49,317 - INFO in BackupManager.__fillSnapshot(397): Number of symlinks: 4688.
2010-05-28 21:50:49,317 - INFO in BackupManager.__fillSnapshot(398): Total number of files: 50092.
2010-05-28 21:50:49,318 - INFO in BackupManager.__fillSnapshot(399): Number of files included in snapshot: 376.
2010-05-28 21:50:49,318 - INFO in BackupManager.__fillSnapshot(400): Number of new files (also included): 51.
2010-05-28 21:50:49,318 - INFO in BackupManager.__fillSnapshot(401): Number of files skipped in incremental snapshot: 49716.
2010-05-28 21:50:49,320 - INFO in BackupManager.__fillSnapshot(402): Number of items forced to be excluded: 125.
2010-05-28 21:50:49,320 - INFO in BackupManager.__fillSnapshot(403): Number of items to be excluded by config: 51.
2010-05-28 21:50:49,341 - INFO in tar.makeTarIncBackup(272): Launching TAR to make incremental backup.
2010-05-28 21:50:49,341 - DEBUG in tar.__prepareTarCommonOpts(241): ['-cS', '--bzip2', '--directory=/', '--ignore-failed-read', '--files-from=/media/backup/dailybackup/2010-05-28_21.49.36.643084.lucid.inc/includes.list.tmp', '--exclude-from=/media/backup/dailybackup/2010-05-28_21.49.36.643084.lucid.inc/excludes.list.tmp', '--file=/media/backup/dailybackup/2010-05-28_21.49.36.643084.lucid.inc/files.tar.bz2']
2010-05-28 21:50:49,341 - DEBUG in tar.__prepareTarCommonOpts(243): Common TAR options : ['-cS', '--bzip2', '--directory=/', '--ignore-failed-read', '--files-from=/media/backup/dailybackup/2010-05-28_21.49.36.643084.lucid.inc/includes.list.tmp', '--exclude-from=/media/backup/dailybackup/2010-05-28_21.49.36.643084.lucid.inc/excludes.list.tmp', '--file=/media/backup/dailybackup/2010-05-28_21.49.36.643084.lucid.inc/files.tar.bz2']
2010-05-28 21:50:49,342 - DEBUG in tar.makeTarIncBackup(285): Snapshot's base snarfile: /media/backup/dailybackup/2010-05-28_07.23.53.568803.lucid.inc/files.snar
2010-05-28 21:50:49,342 - DEBUG in tar.makeTarIncBackup(286): Snapshot's snarfile: /media/backup/dailybackup/2010-05-28_21.49.36.643084.lucid.inc/files.snar
2010-05-28 21:50:49,342 - DEBUG in tar.makeTarIncBackup(287): Temporary snarfile: /tmp/nssbackup/files.snar
2010-05-28 21:50:49,347 - DEBUG in __init__.launch(295): Lauching : ['tar', '-cS', '--bzip2', '--directory=/', '--ignore-failed-read', '--files-from=/media/backup/dailybackup/2010-05-28_21.49.36.643084.lucid.inc/includes.list.tmp', '--exclude-from=/media/backup/dailybackup/2010-05-28_21.49.36.643084.lucid.inc/excludes.list.tmp', '--file=/media/backup/dailybackup/2010-05-28_21.49.36.643084.lucid.inc/files.tar.bz2', '--listed-incremental=/tmp/nssbackup/files.snar']

files.snar : 1.7 MB (1781181 bytes)

I don't know how long the full backup takes. I guess 20 mins ... - just
a guess.

-- 
Merge of incremental snapshot metadata is much too slow (Python process runs 100% CPU)
https://bugs.launchpad.net/bugs/585358
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