Hello.
There are problems with size of some incremental
backups in our installation.
We use bacula version 5.2.13-17.el6 from yum repository
epel-bacula
on the platform Scientific Linux release 6.3 (Carbon).
There is 2 jobs for FileSet "FNAS automatix":
1. job for Base backup
Job {
Name = "j-base FNAS automatix"
Enabled = Yes
Type = Backup
Level = Base
Client = fnas-alpha-fd
Schedule = OnceBase
Storage = St-automatix
Pool = Full-Pool
Messages = Standard
FileSet = "FNAS automatix"
Full Backup Pool = Full-Pool
Priority = 10
}
2. job for Full, Differential and Incremental backup
Job {
Name = "j-dedup FNAS automatix"
Base = "j-base FNAS automatix", "j-dedup FNAS
automatix"
Type = Backup
Accurate = yes
Client = fnas-alpha-fd
Schedule = WeeklyCycle
Storage = St-automatix
Pool = Default
Messages = Standard
FileSet = "FNAS automatix"
Full Backup Pool = Full-Pool
Incremental Backup Pool = Inc-Pool
Differential Backup Pool = Diff-Pool
Write Bootstrap = "/sd/bootstrap/%c.bsr"
Priority = 10
}
The base job (jobid 3638) was completed on 2013-10-11
17:11:38 with status "T".
Number of files and size of backup were
as expected.
+-------+------------------------+---------------------+------+-------+-----------+-----------------+-----------+
| JobId | Name | StartTime
| Type | Level | JobFiles | JobBytes | JobStatus |
+-------+------------------------+---------------------+------+-------+-----------+-----------------+-----------+
| 3,638 | j-base FNAS automatix | 2013-10-11
17:11:38 | B | B | 74,355 | 90,107,063,338 | T
|
| 3,652 | j-dedup FNAS automatix | 2013-10-11 23:05:18 | B
| F | 74,357 | 34,155 | T |
| 4,177 | j-dedup FNAS automatix | 2013-10-20
23:05:17 | B | D | 208 | 61,633,045 | T
|
| 4,591 | j-dedup FNAS automatix | 2013-10-27 23:06:07 | B
| D | 215 | 63,088,695 | T |
| 5,002 | j-dedup FNAS automatix | 2013-11-03
23:05:22 | B | F | 74,494 | 202,110,011 | T
|
| 5,400 | j-dedup FNAS automatix | 2013-11-10 23:05:16 | B
| D | 231 | 96,181,157 | T |
| 5,787 | j-dedup FNAS automatix | 2013-11-17
23:05:19 | B | D | 378 | 160,150,479 | T
|
| 6,185 | j-dedup FNAS automatix | 2013-11-24 23:05:25 | B
| D | 691 | 189,529,241 | T |
| 6,238 | j-dedup FNAS automatix | 2013-11-25
23:05:05 | B | I | 23 | 21,385,822 | T
|
| 6,295 | j-dedup FNAS automatix | 2013-11-26 23:05:19 | B
| I | 32 | 8,855,122 | T |
| 6,351 | j-dedup FNAS automatix | 2013-11-27
23:05:05 | B | I | 34 | 5,999,039 | T
|
| 6,408 | j-dedup FNAS automatix | 2013-11-28 23:05:15 | B
| I | 18 | 9,265,824 | T |
| 6,465 | j-dedup FNAS automatix | 2013-11-29
23:05:05 | B | I | 57 | 4,840,316 | T
|
| 6,522 | j-dedup FNAS automatix | 2013-11-30 23:05:17 | B
| I | 377 | 9,345,024 | T |
| 6,578 | j-dedup FNAS automatix | 2013-12-01
23:05:47 | B | F | 74,953 | 355,315,009 | T
|
| 6,699 | j-dedup FNAS automatix | 2013-12-03 23:05:19 | B
| I | 74,438 | 90,017,638,926 | T |
+-------+------------------------+---------------------+------+-------+-----------+-----------------+-----------+
Next was completed Full backup (job
3652, 2013-10-11 23:05:18).
Number of files and size of backup were as expected,
i.e. number of files is almost the same as number of
files in previous Base backup
and size was very small. The log of
this jobs contains "Using BaseJobId(s):
3638"
After that there were completed several
backups of types Full, Differential and
Incremental (jobs numbers from 4177 to 6578)
And again the number of files and
size of backups were as expected (please, see table above)
including last Full backup (job_6578_log.txt
in attachment), which size tell us that
Base backup was taken into account.
The log of this jobs contains "Using
BaseJobId(s): 3638"
The next job 6999 (Incremental backup) was unexpectedly large,
its size was almost as size of the first Base backup.
We can not find out why.
We have checked CreateTime of
FileSet - it wasn't changed:
mysql> SELECT * FROM FileSet WHERE FileSet = "FNAS
automatix";
+-----------+----------------+------------------------+---------------------+
| FileSetId | FileSet | MD5 |
CreateTime |
+-----------+----------------+------------------------+---------------------+
| 21 | FNAS automatix | /+9Wn8hmM7Z58Fo5D++/oA |
2013-07-04 23:05:00 |
+-----------+----------------+------------------------+---------------------+
We have checked change and modification time
(ctime, mtime) of files included in this Incremental
backup.
They were not changed.
And log of this job (job_6699_log.txt) doesn't contain
words about upgrading Incremental backup to Full.
According to question of FAQ "Incremental
backups are not working" we attached:
- The bacula configuration directory, including
bacula-dir.conf (bacula_config.tgz)
- The output from list jobs covering the period where we
are having the problem (list_jobs.txt).
- The Job report output from the prior Full save (job_6578_log.txt)
- An llist jobid=3638 where 3638 is JobId of Base
backup (list_jobid_3638.txt)
- An llist jobid=nnn where nnn is the JobId of the
prior Full save (list_jobid_6578.txt)
- The Job report output from the save that is doing the
wrong thing (job_6699_log.txt).
- An llist jobid=nnn where nnn is the JobId of the job
that was not correct (list_jobid_6699.txt).
- An explanation of what job went wrong and why you
think it did.
And the same issue took place last week with
another FileSet.
Please, tell us if you need details of this second
issue and we will send them ASAP.
Please, explain us what is wrong with our
Bacula
and what we should change in our configuration to solve
this problem.
Thank you in advance,
Vladimir Scherbo
|
llist_jobid_6699.txt
Description: Text document
bacula_conf.tgz
Description: application/compressed-tar
list_jobs.txt
Description: Text document
llist_jobid_3638.txt
Description: Text document
llist_jobid_6578.txt
Description: Text document
job_6578_log.txt
Description: Text document
job_6699_log.txt
Description: Text document
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