Re: Issues with Virtual Full backups
Thomas Lohman <[email protected]>
| Newsgroups | gmane.comp.bacula.user |
|---|---|
| Message-ID | <[email protected]> |
Interesting - I just looked at one of our Bacula servers that has some jobs that back up data that rarely if ever changes. I looked at one particular job that just did a new Virtual Full. Looking at all the previous jobs between this newest Virtual Full and the last one it had done X days ago, none of those incr/diff jobs had any files backed up. So, this sounds like your scenario but it works fine here. Looking at our logs, I see the following message for the example job I mentioned Found 3 files to consolidate into Virtual Full. This includes the 3 files from the previous FULL - which are the only files in the job. So, the question is why does it not include the file count from your previous FULL when making this calculation. The code in question is in vbackup.c - the create_bootstrap_file method which calls a method in bsr.c which is where the "No files found to read. No bootstrap file written" message is being generated. cheers, --tom > I'm running into this issue with Virtual Full backups. I think I know > what the issue is but am not 100% positive and want to bounce this idea... > > I have a Full backup, then some number of Incrementals. Every week I > run a Virtual full, rolling in all but the most recent 10 Incremental > backups. > My Virtual Fulls are failing with "No files found to read/Found 0 > files to consolidate into Virtual Full" > > 29-Jul 02:36 bacula-dir JobId 5622: Start Virtual Backup JobId 5622, > Job=Taco-Data-A.2025-07-25_21.15.00_33 > 29-Jul 02:36 bacula-dir JobId 5622: Consolidating > JobIds=5400,4698,4728,4758,4788,4818 > 29-Jul 02:36 bacula-dir JobId 5622: No files found to read. No > bootstrap file written. > 29-Jul 02:36 bacula-dir JobId 5622: Found 0 files to consolidate into > Virtual Full. > 29-Jul 02:36 bacula-dir JobId 5622: Fatal error: Could not get or > create the FileSet record. > > What I think is happening is that my disk volume is not being updated > (no changes to files, no new files, no files deleted), and when an > incremental backup runs it stores nothing on the backup "tape". > > 05-Jul 20:19 bacula-dir JobId 4728: Start Backup JobId 4728, > Job=Taco-Data-A.2025-06-30_19.10.00_42 > 05-Jul 20:19 bacula-dir JobId 4728: Connected to Storage "FileChanger" > at si-scott.miserver.it.umich.edu:9103 > <http://si-scott.miserver.it.umich.edu:9103/> with TLS > 05-Jul 20:19 bacula-dir JobId 4728: Using Device "FileChanger-Dev10" > to write. > 05-Jul 20:19 bacula-dir JobId 4728: Connected to Client "taco" at > taco.si.umich.edu:9102 <http://taco.si.umich.edu:9102/> with TLS > 05-Jul 20:19 taco JobId 4728: Connected to Storage at > si-scott.miserver.it.umich.edu:9103 > <http://si-scott.miserver.it.umich.edu:9103/> with TLS > 05-Jul 20:19 bacula-dir JobId 4728: Sending Accurate information to > the FD. > 05-Jul 20:23 bacula-sd JobId 4728: Elapsed time=00:01:42, Transfer > rate=0 Bytes/second > 05-Jul 20:23 bacula-sd JobId 4728: Sending spooled attrs to the > Director. Despooling 0 bytes ... > 05-Jul 20:23 bacula-dir JobId 4728: Bacula bacula-dir 15.0.3 (25Mar25): > Build OS: x86_64-pc-linux-gnu ubuntu 24.04 > JobId: 4728 > Job: Taco-Data-A.2025-06-30_19.10.00_42 > Backup Level: Incremental, since=2025-06-25 09:16:04 > Client: "taco" 15.0.3 (25Mar25) > x86_64-pc-linux-gnu,ubuntu,22.04 > FileSet: "Taco-Data-A" 2025-05-02 15:31:06 > Pool: "Taco-Incr" (From Job IncPool override) > Catalog: "MyCatalog" (From Client resource) > Storage: "FileChanger" (From Pool resource) > Scheduled time: 30-Jun-2025 19:10:00 > Start time: 05-Jul-2025 20:19:45 > End time: 05-Jul-2025 20:23:12 > Elapsed time: 3 mins 27 secs > Priority: 10 > FD Files Written: 0 > SD Files Written: 0 > FD Bytes Written: 0 (0 B) > SD Bytes Written: 0 (0 B) > Rate: 0.0 KB/s > Software Compression: None > Comm Line Compression: None > Snapshot/VSS: no > Encryption: no > Accurate: yes > Volume name(s): > Volume Session Id: 619 > Volume Session Time: 1749606283 > Last Volume Bytes: 2,295 (2.295 KB) > Non-fatal FD errors: 0 > SD Errors: 0 > FD termination status: OK > SD termination status: OK > Termination: Backup OK > > So, when it comes time to consolidate it grabs each incremental and > finds there's nothing, and the Virtual Full fails. I can find these > "tapes" in my Jobs table, but no joining entries in Media, or JobMedia. > > If I scan through the "tape" on the filesystem, I find backups on the > tape, only for jobs which actually wrote files. > > The end result is that I have a Full backup, which is getting > increasingly older, VirtualFulls which fail, so no new Full backup, > and once I hit a point where the Full backup hits its prune-date it > gets pruned from the file table. After that, the database knows there > was a successful Full, and incrementals still run, but now every file > the incremental comes across is "brand new" and my incremental backup > is basically a Full backup. > > > -- > - Adaptability -- Analytical --- Ideation ---- Input ----- Belief - > ------------------------------------------------------------------- > John M. Lockard | U of Michigan - School of Information > Unix Sys Admin | Suite 205 | 309 Maynard Street > [email protected] | Ann Arbor, MI 48104-2211 > www.umich.edu/~jlockard <http://www.umich.edu/%7Ejlockard> | > 734-615-8776 | 734-763-9677 FAX > ------------------------------------------------------------------- > - The University of Michigan will never ask you for your password - > > > > _______________________________________________ > Bacula-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/bacula-users _______________________________________________ Bacula-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/bacula-users