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kernstodo
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Kern's ToDo List
21 September 2009
Rescue:
Add to USB key:
gftp sshfs kile kate lsssci m4 mtx nfs-common nfs-server
patch squashfs-tools strace sg3-utils screen scsiadd
system-tools-backend telnet dpkg traceroute urar usbutils
whois apt-file autofs busybox chkrootkit clamav dmidecode
manpages-dev manpages-posix manpages-posix-dev
Document:
- package sg3-utils, program sg_map
- !!! Cannot restore two jobs a the same time that were
written simultaneously unless they were totally spooled.
- Document cleaning up the spool files:
db, pid, state, bsr, mail, conmsg, spool
- Document the multiple-drive-changer.txt script.
- Pruning with Admin job.
- Does WildFile match against full name? Doc.
- %d and %v only valid on Director, not for ClientRunBefore/After.
- During tests with the 260 char fix code, I found one problem:
if the system "sees" a long path once, it seems to forget it's
working drive (e.g. c:\), which will lead to a problem during
the next job (create bootstrap file will fail). Here is the
workaround: specify absolute working and pid directory in
bacula-fd.conf (e.g. c:\bacula\working instead of
\bacula\working).
- Document techniques for restoring large numbers of files.
- Document setting my.cnf to big file usage.
- Correct the Include syntax in the m4.xxx files in examples/conf
- Document all the little details of setting up certificates for
the Bacula data encryption code.
- Document more precisely how to use master keys -- especially
for disaster recovery.
Priority:
================
24-Jul 09:56 rufus-fd JobId 1: VSS Writer (BackupComplete): "System Writer", State: 0x1 (VSS_WS_STABLE)
24-Jul 09:56 rufus-fd JobId 1: Warning: VSS Writer (BackupComplete): "ASR Writer", State: 0x8 (VSS_WS_FAILED_AT_PREPARE_SNAPSHOT)
24-Jul 09:56 rufus-fd JobId 1: VSS Writer (BackupComplete): "WMI Writer", State: 0x1 (VSS_WS_STABLE)
- Add external command to lookup hostname (eg nmblookup timmy-win7)
nmblookup gato
querying gato on 127.255.255.255
querying gato on 192.168.1.255
192.168.1.8 gato<00>
192.168.1.11 gato<00>
192.168.1.8 gato<00>
192.168.1.11 gato<00>
- Possibly allow SD to spool even if a tape is not mounted.
- How to sync remote offices.
- Windows Bare Metal
- Backup up windows system state
- Complete Job restart
- Look at rsysnc for incremental updates and dedupping
- Implement rwlock() for SD that takes why and can_steal to replace
existing block/lock mechanism. rlock() would allow multiple readers
wlock would allow only one writer.
- For Windows disaster recovery see http://unattended.sf.net/
- Add "before=" "olderthan=" to FileSet for doing Base of
unchanged files.
- Show files/second in client status output.
- Don't attempt to restore from "Disabled" Volumes.
- Have SD compute MD5 or SHA1 and compare to what FD computes.
- Make VolumeToCatalog calculate an MD5 or SHA1 from the
actual data on the Volume and compare it.
- Remove queue.c code.
- Implement multiple jobid specification for the cancel command,
similar to what is permitted on the update slots command.
- Ensure that the SD re-reads the Media record if the JobFiles
does not match -- it may have been updated by another job.
- Add MD5 or SHA1 check in SD for data validation
- When reserving a device to read, check to see if the Volume
is already in use, if so wait. Probably will need to pass the
Volume. See bug #1313. Create a regression test to simulate
this problem and see if VolumePollInterval fixes it. Possibly turn
it on by default.
- Page hash tables
- Deduplication
- Why no error message if restore has no permission on the where
directory?
- Possibly allow manual "purge" to purge a Volume that has not
yet been written (even if FirstWritten time is zero) see ua_purge.c
is_volume_purged().
- Add disk block detection bsr code (make it work).
- Remove done bsrs.
- Detect deadlocks in reservations.
- Plugins:
- Add list during dump
- Add in plugin code flag
- Add bRC_EndJob -- stops more calls to plugin this job
- Add bRC_Term (unload plugin)
- remove time_t from Jmsg and use utime_t?
- Deadlock detection, watchdog sees if counter advances when jobs are
running. With debug on, can do a "status" command.
- User options for plugins.
- Pool Storage override precedence over command line.
- Autolabel only if Volume catalog information indicates tape not
written. This will avoid overwriting a tape that gets an I/O
error on reading the volume label.
- I/O error, SD thinks it is not the right Volume, should check slot
then disable volume, but Asks for mount.
- Can be posible modify package to create and use configuration files in
the Debian manner?
For example:
/etc/bacula/bacula-dir.conf
/etc/bacula/conf.d/pools.conf
/etc/bacula/conf.d/clients.conf
/etc/bacula/conf.d/storages.conf
and into bacula-dir.conf file include
@/etc/bacula/conf.d/pools.conf
@/etc/bacula/conf.d/clients.conf
@/etc/bacula/conf.d/storages.conf
- Possibly add an Inconsistent state when a Volume is in error
for non I/O reasons.
- Fix #ifdefing so that smartalloc can be disabled. Check manual
-- the default is enabled.
- Dangling softlinks are not restored properly. For example, take a
soft link such as src/testprogs/install-sh, which points to /usr/share/autoconf...
move the directory to another machine where the file /usr/share/autoconf does
not exist, back it up, then try a full restore. It fails.
- Softlinks that point to non-existent file are not restored in restore all,
but are restored if the file is individually selected. BUG!
- Prune by Job
- Prune by Job Level (Full, Differential, Incremental)
- modify pruning to keep a fixed number of versions of a file,
if requested.
- the cd-command should allow complete paths
i.e. cd /foo/bar/foo/bar
-> if a customer mails me the path to a certain file,
its faster to enter the specified directory
- Make tree walk routines like cd, ls, ... more user friendly
by handling spaces better.
- When doing a restore, if the user does an "update slots"
after the job started in order to add a restore volume, the
values prior to the update slots will be put into the catalog.
Must retrieve catalog record merge it then write it back at the
end of the restore job, if we want to do this right.
=== rate design
jcr->last_rate
jcr->last_runtime
MA = (last_MA * 3 + rate) / 4
rate = (bytes - last_bytes) / (runtime - last_runtime)
===
- Add a recursive mark command (rmark) to restore.
- Look at simplifying File exclusions.
- Scripts
- Separate Files and Directories in catalog
- Create FileVersions table
- finish implementation of fdcalled -- see ua_run.c:105
- Fix problem in postgresql.c in my_postgresql_query, where the
generation of the error message doesn't differentiate result==NULL
and a bad status from that result. Not only that, the result is
cleared on a bail_out without having generated the error message.
- Implement SDErrors (must return from SD)
- Implement continue spooling while despooling.
- Remove all install temp files in Win32 PLUGINSDIR.
- No where in restore causes kaboom.
- Performance: multiple spool files for a single job.
- Performance: despool attributes when despooling data (problem
multiplexing Dir connection).
- Implement wait_for_sysop() message display in wait_for_device(), which
now prints warnings too often.
- Ensure that each device in an Autochanger has a different
Device Index.
- Look at sg_logs -a /dev/sg0 for getting soft errors.
- btape "test" command with Offline on Unmount = yes
This test is essential to Bacula.
I'm going to write one record in file 0,
two records in file 1,
and three records in file 2
02-Feb 11:00 btape: ABORTING due to ERROR in dev.c:715
dev.c:714 Bad call to rewind. Device "LTO" (/dev/nst0) not open
02-Feb 11:00 btape: Fatal Error because: Bacula interrupted by signal 11: Segmentation violation
Kaboom! btape, btape got signal 11. Attempting traceback.
- Encryption -- email from Landon
> The backup encryption algorithm is currently not configurable, and is
> set to AES_128_CBC in src/filed/backup.c. The encryption code
> supports a number of different ciphers (as well as adding arbitrary
> new ones) -- only a small bit of code would be required to map a
> configuration string value to a CRYPTO_CIPHER_* value, if anyone is
> interested in implementing this functionality.
- Add the OS version back to the Win32 client info.
- Restarted jobs have a NULL in the from field.
- Modify SD status command to indicate when the SD is writing
to a DVD (the device is not open -- see bug #732).
- Look at the possibility of adding "SET NAMES UTF8" for MySQL,
and possibly changing the blobs into varchar.
- Test Volume compatibility between machine architectures
- Encryption documentation
Professional Needs:
- Migration from other vendors
- Date change
- Path change
- Filesystem types
- Backup conf/exe (all daemons)
- Detect state change of system (verify)
- SD to SD
- Novell NSS backup http://www.novell.com/coolsolutions/tools/18952.html
- Compliance norms that compare restored code hash code.
- David's priorities
Copypools
Extract capability (#25)
Threshold triggered migration jobs (not currently in list, but will be
needed ASAP)
Client triggered backups
Complete rework of the scheduling system (not in list)
Performance and usage instrumentation (not in list)
See email of 21Aug2007 for details.
- Look at: http://tech.groups.yahoo.com/group/cfg2html
and http://www.openeyet.nl/scc/ for managing customer changes
Projects:
- Pool enhancements
- Access Mode = Read-Only, Read-Write, Unavailable, Destroyed, Offsite
- Pool Type = Copy
- Maximum number of scratch volumes
- Maximum File size
- Next Pool (already have)
- Reclamation threshold
- Reclamation Pool
- Reuse delay (after all files purged from volume before it can be used)
- Copy Pool = xx, yyy (or multiple lines).
- Catalog = xxx
- Allow pool selection during restore.
- Average tape size from Eric
SELECT COALESCE(media_avg_size.volavg,0) * count(Media.MediaId) AS volmax, GROUP BY Media.MediaType, Media.PoolId, media_avg_size.volavg
count(Media.MediaId) AS volnum,
sum(Media.VolBytes) AS voltotal,
Media.PoolId AS PoolId,
Media.MediaType AS MediaType
FROM Media
LEFT JOIN (SELECT avg(Media.VolBytes) AS volavg,
Media.MediaType AS MediaType
FROM Media
WHERE Media.VolStatus = 'Full'
GROUP BY Media.MediaType
) AS media_avg_size ON (Media.MediaType = media_avg_size.MediaType)
GROUP BY Media.MediaType, Media.PoolId, media_avg_size.volavg
- Performance
- Despool attributes in separate thread
- Database speedups
- Embedded MySQL
- Check why restore repeatedly sends Rechdrs between
each data chunk -- according to James Harper 9Jan07.
- Features
- Better scheduling
- More intelligent re-run
- Incremental backup -- rsync, Stow
- Make Bacula by default not backup tmpfs, procfs, sysfs, ...
- Fix hardlinked immutable files when linking a second file, the
immutable flag must be removed prior to trying to link it.
- Change dbcheck to tell users to use native tools for fixing
broken databases, and to ensure they have the proper indexes.
- add udev rules for Bacula devices.
- If a job terminates, the DIR connection can close before the
Volume info is updated, leaving the File count wrong.
- Look at why SIGPIPE during connection can cause seg fault in
writing the daemon message, when Dir dropped to bacula:bacula
- Look at zlib 32 => 64 problems.
- Fix bextract to restore ACLs, or better yet, use common routines.
- New dot commands from Arno.
.show device=xxx lists information from one storage device, including
devices (I'm not even sure that information exists in the DIR...)
.move eject device=xxx mostly the same as 'unmount xxx' but perhaps with
better machine-readable output like "Ok" or "Error busy"
.move eject device=xxx toslot=yyy the same as above, but with a new
target slot. The catalog should be updated accordingly.
.move transfer device=xxx fromslot=yyy toslot=zzz
Low priority:
- Article: http://www.heise.de/open/news/meldung/83231
- Article: http://www.golem.de/0701/49756.html
- Article: http://lwn.net/Articles/209809/
- Article: http://www.onlamp.com/pub/a/onlamp/2004/01/09/bacula.html
- Article: http://www.linuxdevcenter.com/pub/a/linux/2005/04/07/bacula.html
- Article: http://www.osreviews.net/reviews/admin/bacula
- Article: http://www.debianhelp.co.uk/baculaweb.htm
- Article:
- Wikis mentioning Bacula
http://wiki.finkproject.org/index.php/Admin:Backups
http://wiki.linuxquestions.org/wiki/Bacula
http://www.openpkg.org/product/packages/?package=bacula
http://www.iterating.com/products/Bacula
http://net-snmp.sourceforge.net/wiki/index.php/Net-snmp_extensions
http://www.section6.net/wiki/index.php/Using_Bacula_for_Tape_Backups
http://bacula.darwinports.com/
http://wiki.mandriva.com/en/Releases/Corporate/Server_4/Notes#Bacula
http://en.wikipedia.org/wiki/Bacula
- Bacula Wikis
http://www.devco.net/pubwiki/Bacula/
http://paramount.ind.wpi.edu/wiki/doku.php
http://gentoo-wiki.com/HOWTO_Backup
http://www.georglutz.de/wiki/Bacula
http://www.clarkconnect.com/wiki/index.php?title=Modules_-_LAN_Backup/Recovery
http://linuxwiki.de/Bacula (in German)
- Figure out how to configure query.sql. Suggestion to use m4:
== changequote.m4 ===
changequote(`[',`]')dnl
==== query.sql.in ===
:List next 20 volumes to expire
SELECT
Pool.Name AS PoolName,
Media.VolumeName,
Media.VolStatus,
Media.MediaType,
ifdef([MySQL],
[ FROM_UNIXTIME(UNIX_TIMESTAMP(Media.LastWritten) Media.VolRetention) AS Expire, ])dnl
ifdef([PostgreSQL],
[ media.lastwritten + interval '1 second' * media.volretention as expire, ])dnl
Media.LastWritten
FROM Pool
LEFT JOIN Media
ON Media.PoolId=Pool.PoolId
WHERE Media.LastWritten>0
ORDER BY Expire
LIMIT 20;
====
Command: m4 -DmySQL changequote.m4 query.sql.in >query.sql
The problem is that it requires m4, which is not present on all machines
at ./configure time.
==== SQL
# get null file
select FilenameId from Filename where Name='';
# Get list of all directories referenced in a Backup.
select Path.Path from Path,File where File.JobId=nnn and
File.FilenameId=(FilenameId-from-above) and File.PathId=Path.PathId
order by Path.Path ASC;
- Mount on an Autochanger with no tape in the drive causes:
Automatically selected Storage: LTO-changer
Enter autochanger drive[0]: 0
3301 Issuing autochanger "loaded drive 0" command.
3302 Autochanger "loaded drive 0", result: nothing loaded.
3301 Issuing autochanger "loaded drive 0" command.
3302 Autochanger "loaded drive 0", result: nothing loaded.
3902 Cannot mount Volume on Storage Device "LTO-Drive1" (/dev/nst0) because:
Couldn't rewind device "LTO-Drive1" (/dev/nst0): ERR=dev.c:678 Rewind error on "LTO-Drive1" (/dev/nst0). ERR=No medium found.
3905 Device "LTO-Drive1" (/dev/nst0) open but no Bacula volume is mounted.
If this is not a blank tape, try unmounting and remounting the Volume.
- If Drive 0 is blocked, and drive 1 is set "Autoselect=no", drive 1 will
be used.
- Autochanger did not change volumes.
select * from Storage;
+-----------+-------------+-------------+
| StorageId | Name | AutoChanger |
+-----------+-------------+-------------+
| 1 | LTO-changer | 0 |
+-----------+-------------+-------------+
05-May 03:50 roxie-sd: 3302 Autochanger "loaded drive 0", result is Slot 11.
05-May 03:50 roxie-sd: Tibs.2006-05-05_03.05.02 Warning: Director wanted Volume "LT
Current Volume "LT0-002" not acceptable because:
1997 Volume "LT0-002" not in catalog.
05-May 03:50 roxie-sd: Tibs.2006-05-05_03.05.02 Error: Autochanger Volume "LT0-002"
Setting InChanger to zero in catalog.
05-May 03:50 roxie-dir: Tibs.2006-05-05_03.05.02 Error: Unable to get Media record
05-May 03:50 roxie-sd: Tibs.2006-05-05_03.05.02 Fatal error: Error getting Volume i
05-May 03:50 roxie-sd: Tibs.2006-05-05_03.05.02 Fatal error: Job 530 canceled.
05-May 03:50 roxie-sd: Tibs.2006-05-05_03.05.02 Fatal error: spool.c:249 Fatal appe
05-May 03:49 Tibs: Tibs.2006-05-05_03.05.02 Fatal error: c:\cygwin\home\kern\bacula
, got
(missing)
llist volume=LTO-002
MediaId: 6
VolumeName: LTO-002
Slot: 0
PoolId: 1
MediaType: LTO-2
FirstWritten: 2006-05-05 03:11:54
LastWritten: 2006-05-05 03:50:23
LabelDate: 2005-12-26 16:52:40
VolJobs: 1
VolFiles: 0
VolBlocks: 1
VolMounts: 0
VolBytes: 206
VolErrors: 0
VolWrites: 0
VolCapacityBytes: 0
VolStatus:
Recycle: 1
VolRetention: 31,536,000
VolUseDuration: 0
MaxVolJobs: 0
MaxVolFiles: 0
MaxVolBytes: 0
InChanger: 0
EndFile: 0
EndBlock: 0
VolParts: 0
LabelType: 0
StorageId: 1
Note VolStatus is blank!!!!!
llist volume=LTO-003
MediaId: 7
VolumeName: LTO-003
Slot: 12
PoolId: 1
MediaType: LTO-2
FirstWritten: 0000-00-00 00:00:00
LastWritten: 0000-00-00 00:00:00
LabelDate: 2005-12-26 16:52:40
VolJobs: 0
VolFiles: 0
VolBlocks: 0
VolMounts: 0
VolBytes: 1
VolErrors: 0
VolWrites: 0
VolCapacityBytes: 0
VolStatus: Append
Recycle: 1
VolRetention: 31,536,000
VolUseDuration: 0
MaxVolJobs: 0
MaxVolFiles: 0
MaxVolBytes: 0
InChanger: 0
EndFile: 0
EndBlock: 0
VolParts: 0
LabelType: 0
StorageId: 1
===
mount
Automatically selected Storage: LTO-changer
Enter autochanger drive[0]: 0
3301 Issuing autochanger "loaded drive 0" command.
3302 Autochanger "loaded drive 0", result: nothing loaded.
3301 Issuing autochanger "loaded drive 0" command.
3302 Autochanger "loaded drive 0", result: nothing loaded.
3902 Cannot mount Volume on Storage Device "LTO-Drive1" (/dev/nst0) because:
Couldn't rewind device "LTO-Drive1" (/dev/nst0): ERR=dev.c:678 Rewind error on "LTO-Drive1" (/dev/nst0). ERR=No medium found.
3905 Device "LTO-Drive1" (/dev/nst0) open but no Bacula volume is mounted.
If this is not a blank tape, try unmounting and remounting the Volume.
- http://www.dwheeler.com/essays/commercial-floss.html
- Add VolumeLock to prevent all but lock holder (SD) from updating
the Volume data (with the exception of VolumeState).
- The btape fill command does not seem to use the Autochanger
- Make Windows installer default to system disk drive.
- Look at using ioctl(FIOBMAP, ...) on Linux, and
DeviceIoControl(..., FSCTL_QUERY_ALLOCATED_RANGES, ...) on
Win32 for sparse files.
http://www.flexhex.com/docs/articles/sparse-files.phtml
http://www.informatik.uni-frankfurt.de/~loizides/reiserfs/fibmap.html
- Directive: at <event> "command"
- Command: pycmd "command" generates "command" event. How to
attach to a specific job?
- run_cmd() returns int should return JobId_t
- get_next_jobid_from_list() returns int should return JobId_t
- Document export LDFLAGS=-L/usr/lib64
- Network error on Win32 should set Win32 error code.
- What happens when you rename a Disk Volume?
- Job retention period in a Pool (and hence Volume). The job would
then be migrated.
- Add Win32 FileSet definition somewhere
- Look at fixing restore status stats in SD.
- Look at using ioctl(FIMAP) and FIGETBSZ for sparse files.
http://www.informatik.uni-frankfurt.de/~loizides/reiserfs/fibmap.html
- Implement a mode that says when a hard read error is
encountered, read many times (as it currently does), and if the
block cannot be read, skip to the next block, and try again. If
that fails, skip to the next file and try again, ...
- Add level table:
create table LevelType (LevelType binary(1), LevelTypeLong tinyblob);
insert into LevelType (LevelType,LevelTypeLong) values
("F","Full"),
("D","Diff"),
("I","Inc");
- new pool XXX with ScratchPoolId = MyScratchPool's PoolId and
let it fill itself, and RecyclePoolId = XXX's PoolId so I can
see if it become stable and I just have to supervise
MyScratchPool
- If I want to remove this pool, I set RecyclePoolId = MyScratchPool's
PoolId, and when it is empty remove it.
- Add Volume=SCRTCH
- Allow Check Labels to be used with Bacula labels.
- "Resuming" a failed backup (lost line for example) by using the
failed backup as a sort of "base" job.
- Look at NDMP
- Email to the user when the tape is about to need changing x
days before it needs changing.
- Command to show next tape that will be used for a job even
if the job is not scheduled.
- From: Arunav Mandal <[email protected]>
1. When jobs are running and bacula for some reason crashes or if I do a
restart it remembers and jobs it was running before it crashed or restarted
as of now I loose all jobs if I restart it.
2. When spooling and in the midway if client is disconnected for instance a
laptop bacula completely discard the spool. It will be nice if it can write
that spool to tape so there will be some backups for that client if not all.
3. We have around 150 clients machines it will be nice to have a option to
upgrade all the client machines bacula version automatically.
4. Atleast one connection should be reserved for the bconsole so at heavy load
I should connect to the director via bconsole which at sometimes I can't
5. Another most important feature that is missing, say at 10am I manually
started backup of client abc and it was a full backup since client abc has
no backup history and at 10.30am bacula again automatically started backup of
client abc as that was in the schedule. So now we have 2 multiple Full
backups of the same client and if we again try to start a full backup of
client backup abc bacula won't complain. That should be fixed.
- regardless of the retention period, Bacula will not prune the
last Full, Diff, or Inc File data until a month after the
retention period for the last Full backup that was done.
- update volume=xxx --- add status=Full
- Remove old spool files on startup.
- Exclude SD spool/working directory.
- Refuse to prune last valid Full backup. Same goes for Catalog.
- Python:
- Make a callback when Rerun failed levels is called.
- Give Python program access to Scheduled jobs.
- Add setting Volume State via Python.
- Python script to save with Python, not save, save with Bacula.
- Python script to do backup.
- What events?
- Change the Priority, Client, Storage, JobStatus (error)
at the start of a job.
- Why is SpoolDirectory = /home/bacula/spool; not reported
as an error when writing a DVD?
- Make bootstrap file handle multiple MediaTypes (SD)
- Remove all old Device resource code in Dir and code to pass it
back in SD -- better, rework it to pass back device statistics.
- Check locking of resources -- be sure to lock devices where previously
resources were locked.
- The last part is left in the spool dir.
- In restore don't compare byte count on a raw device -- directory
entry does not contain bytes.
- Max Vols limit in Pool off by one?
- Implement Files/Bytes,... stats for restore job.
- Implement Total Bytes Written, ... for restore job.
- Despool attributes simultaneously with data in a separate
thread, rejoined at end of data spooling.
- 7. Implement new Console commands to allow offlining/reserving drives,
and possibly manipulating the autochanger (much asked for).
- Add start/end date editing in messages (%t %T, %e?) ...
- Add ClientDefs similar to JobDefs.
- Print more info when bextract -p accepts a bad block.
- Fix FD JobType to be set before RunBeforeJob in FD.
- Look at adding full Volume and Pool information to a Volume
label so that bscan can get *all* the info.
- If the user puts "Purge Oldest Volume = yes" or "Recycle Oldest Volume = yes"
and there is only one volume in the pool, refuse to do it -- otherwise
he fills the Volume, then immediately starts reusing it.
- Implement copies and stripes.
- Add history file to console.
- Each file on tape creates a JobMedia record. Peter has 4 million
files spread over 10000 tape files and four tapes. A restore takes
16 hours to build the restore list.
- Add and option to check if the file size changed during backup.
- Make sure SD deletes spool files on error exit.
- Delete old spool files when SD starts.
- When labeling tapes, if you enter 000026, Bacula uses
the tape index rather than the Volume name 000026.
- Add offline tape command to Bacula console.
- Bug:
Enter MediaId or Volume name: 32
Enter new Volume name: DLT-20Dec04
Automatically selected Pool: Default
Connecting to Storage daemon DLTDrive at 192.168.68.104:9103 ...
Sending relabel command from "DLT-28Jun03" to "DLT-20Dec04" ...
block.c:552 Write error at 0:0 on device /dev/nst0. ERR=Bad file descriptor.
Error writing final EOF to tape. This tape may not be readable.
dev.c:1207 ioctl MTWEOF error on /dev/nst0. ERR=Permission denied.
askdir.c:219 NULL Volume name. This shouldn't happen!!!
3912 Failed to label Volume: ERR=dev.c:1207 ioctl MTWEOF error on /dev/nst0. ERR=Permission denied.
Label command failed for Volume DLT-20Dec04.
Do not forget to mount the drive!!!
- Bug: if a job is manually scheduled to run later, it does not appear
in any status report and cannot be cancelled.
====
From David:
How about introducing a Type = MgmtPolicy job type? That job type would
be responsible for scanning the Bacula environment looking for specific
conditions, and submitting the appropriate jobs for implementing said
policy, eg:
Job {
Name = "Migration-Policy"
Type = MgmtPolicy
Policy Selection Job Type = Migrate
Scope = "<keyword> <operator> <regexp>"
Threshold = "<keyword> <operator> <regexp>"
Job Template = <template-name>
}
Where <keyword> is any legal job keyword, <operator> is a comparison
operator (=,<,>,!=, logical operators AND/OR/NOT) and <regexp> is a
appropriate regexp. I could see an argument for Scope and Threshold
being SQL queries if we want to support full flexibility. The
Migration-Policy job would then get scheduled as frequently as a site
felt necessary (suggested default: every 15 minutes).
Example:
Job {
Name = "Migration-Policy"
Type = MgmtPolicy
Policy Selection Job Type = Migration
Scope = "Pool=*"
Threshold = "Migration Selection Type = LowestUtil"
Job Template = "MigrationTemplate"
}
would select all pools for examination and generate a job based on
MigrationTemplate to automatically select the volume with the lowest
usage and migrate it's contents to the nextpool defined for that pool.
This policy abstraction would be really handy for adjusting the behavior
of Bacula according to site-selectable criteria (one thing that pops
into mind is Amanda's ability to automatically adjust backup levels
depending on various criteria).
=====
Regression tests:
- Add Pool/Storage override regression test.
- Add delete JobId to regression.
- Add a regression test for dbcheck.
- New test to add bscan to four-concurrent-jobs regression,
i.e. after the four-concurrent jobs zap the
database as is done in the bscan-test, then use bscan to
restore the database, do a restore and compare with the
original.
- Add restore of specific JobId to regression (item 3
on the restore prompt)
- Add IPv6 to regression
- Add database test to regression. Test each function like delete,
purge, ...
- AntiVir can slow down backups on Win32 systems.
- Win32 systems with FAT32 can be much slower than NTFS for
more than 1000 files per directory.
1.37 Possibilities:
- A HOLD command to stop all jobs from starting.
- A PAUSE command to pause all running jobs ==> release the
drive.
- Media Type = LTO,LTO-2,LTO-3
Media Type Read = LTO,LTO2,LTO3
Media Type Write = LTO2, LTO3
=== From Carsten Menke <[email protected]>
Following is a list of what I think in the situations where I'm faced with,
could be a usefull enhancement to bacula, which I'm certain other users will
benefit from as well.
1. NextJob/NextJobs Directive within a Job Resource in the form of
NextJobs = job1,job2.
Why:
I currently solved the problem with running multiple jobs each after each
by setting the Max Wait Time for a job to 8 hours, and give
the jobs different Priorities. However, there scenarios where
1 Job is directly depending on another job, so if the former job fails,
the job after it needn't to be run
while maybe other jobs should run despite of that
Example:
A Backup Job and a Verify job, if the backup job fails there is no need to run
the verify job, as the backup job already failed. However, one may like
to backup the Catalog to disk despite of that the main backup job failed.
Notes:
I see that this is related to the Event Handlers which are on the ToDo
list, also it is maybe a good idea to check for the return value and
execute different actions based on the return value
3. offline capability to bconsole
Why:
Currently I use a script which I execute within the last Job via the
RunAfterJob Directive, to release and eject the tape.
So I have to call bconsole "release=Storage-Name" and afterwards
mt -f /dev/nst0 eject to get the tape out.
If I have multiple Storage Devices, than these may not be /dev/nst0 and
I have to modify the script or call it with parameters etc.
This would actually not be needed, as everything is already defined
in bacula-sd.conf and if I can invoke bconsole with the
storage name via $1 in the script than I'm done and information is
not duplicated.
4. %s for Storage Name added to the chars being substituted in "RunAfterJob"
Why:
For the reason mentioned in 3. to have the ability to call a
script with /scripts/foobar %s and in the script use $1
to pass the Storage Name to bconsole
5. Setting Volume State within a Job Resource
Why:
Instead of using "Maximum Volume Jobs" in the Pool Resource,
I would have the possibilty to define
in a Job Resource that after this certain job is run, the Volume State
should be set to "Volume State = Used", this give more flexibility (IMHO).
7. OK, this is evil, probably bound to security risks and maybe not possible
due to the design of bacula.
Implementation of Backtics ( `command` ) for shell comand execution to
the "Label Format" Directive.
Why:
Currently I have defined BACULA_DAY_OF_WEEK="day1|day2..." resulting in
Label Format = "HolyBackup-${BACULA_DAY_OF_WEEK[${WeekDay}]}". If I could
use backticks than I could use "Label Format = HolyBackup-`date +%A` to have
the localized name for the day of the week appended to the
format string. Then I have the tape labeled automatically with weekday
name in the correct language.
==========
- Make output from status use html table tags for nicely
presenting in a browser.
- Browse generations of files.
- I've seen an error when my catalog's File table fills up. I
then have to recreate the File table with a larger maximum row
size. Relevant information is at
http://dev.mysql.com/doc/mysql/en/Full_table.html ; I think the
"Installing and Configuring MySQL" chapter should talk a bit
about this potential problem, and recommend a solution.
- Want speed of writing to tape while despooling.
- Supported autochanger:
OS: Linux
Man.: HP
Media: LTO-2
Model: SSL1016
Slots: 16
Cap: 200GB
- Supported drive:
Wangtek 6525ES (SCSI-1 QIC drive, 525MB), under Linux 2.4.something,
bacula 1.36.0/1 works with blocksize 16k INSIDE bacula-sd.conf.
- Add regex from http://www.pcre.org to Bacula for Win32.
- Use only shell tools no make in CDROM package.
- Include within include does it work?
- Implement a Pool of type Cleaning?
- Think about making certain database errors fatal.
- Look at correcting the time jump in the scheduler for daylight
savings time changes.
- Check dates entered by user for correctness (month/day/... ranges)
- Compress restore Volume listing by date and first file.
- Look at patches/bacula_db.b2z postgresql that loops during restore.
See Gregory Wright.
- Perhaps add read/write programs and/or plugins to FileSets.
- How to handle backing up portables ...
- Limit bandwidth
Documentation to do: (any release a little bit at a time)
- Doc to do unmount before removing magazine.
- Alternative to static linking "ldd prog" save all binaries listed,
restore them and point LD_LIBRARY_PATH to them.
- Document add "</dev/null >/dev/null 2>&1" to the bacula-fd command line
- Document query file format.
- Add more documentation for bsr files.
- Document problems with Verify and pruning.
- Document how to use multiple databases.
- VXA drives have a "cleaning required"
indicator, but Exabyte recommends preventive cleaning after every 75
hours of operation.
From Phil:
In this context, it should be noted that Exabyte has a command-line
vxatool utility available for free download. (The current version is
vxatool-3.72.) It can get diagnostic info, read, write and erase tapes,
test the drive, unload tapes, change drive settings, flash new firmware,
etc.
Of particular interest in this context is that vxatool <device> -i will
report, among other details, the time since last cleaning in tape motion
minutes. This information can be retrieved (and settings changed, for
that matter) through the generic-SCSI device even when Bacula has the
regular tape device locked. (Needless to say, I don't recommend
changing tape settings while a job is running.)
- Lookup HP cleaning recommendations.
- Lookup HP tape replacement recommendations (see trouble shooting autochanger)
- Document doing table repair
===================================
- Add macro expansions in JobDefs.
Run Before Job = "SomeFile %{Level} %{Client}"
Write Bootstrap="/some/dir/%{JobName}_%{Client}.bsr"
- Use non-blocking network I/O but if no data is available, use
select().
- Use gather write() for network I/O.
- Autorestart on crash.
- Add bandwidth limiting.
- When an error in input occurs and conio beeps, you can back
up through the prompt.
- Detect fixed tape block mode during positioning by looking at
block numbers in btape "test". Possibly adjust in Bacula.
- Fix list volumes to output volume retention in some other
units, perhaps via a directive.
- If you use restore replace=never, the directory attributes for
non-existent directories will not be restored properly.
- see lzma401.zip in others directory for new compression
algorithm/library.
- Allow the user to select JobType for manual pruning/purging.
- bscan does not put first of two volumes back with all info in
bscan-test.
- Figure out how to make named console messages go only to that
console and to the non-restricted console (new console class?).
- Make restricted console prompt for password if *ask* is set or
perhaps if password is undefined.
- Implement "from ISO-date/time every x hours/days/weeks/months" in
schedules.
==== from Marc Schoechlin
- the help-command should be more verbose
(it should explain the paramters of the different
commands in detail)
-> its time-comsuming to consult the manual anytime
you need a special parameter
-> maybe its more easy to maintain this, if the
descriptions of that commands are outsourced to
a ceratin-file
- if the password is not configured in bconsole.conf
you should be asked for it.
-> sometimes you like to do restore on a customer-machine
which shouldnt know the password for bacula.
-> adding the password to the file favours admins
to forget to remove the password after usage
-> security-aspects
the protection of that file is less important
- long-listed-output of commands should be scrollable
like the unix more/less-command does
-> if someone runs 200 and more machines, the lists could
be a little long and complex
- command-output should be shown column by column
to reduce scrolling and to increase clarity
-> see last item
- lsmark should list the selected files with full
paths
- wildcards for selecting and file and directories would be nice
- any actions should be interuptable with STRG+C
- command-expansion would be pretty cool
====
- When the replace Never option is set, new directory permissions
are not restored. See bug 213. To fix this requires creating a
list of newly restored directories so that those directory
permissions *can* be restored.
- Add prune all command
- Document fact that purge can destroy a part of a restore by purging
one volume while others remain valid -- perhaps mark Jobs.
- Add multiple-media-types.txt
- look at mxt-changer.html
- Make ? do a help command (no return needed).
- Implement restore directory.
- Document streams and how to implement them.
- Try not to re-backup a file if a new hard link is added.
- Add feature to backup hard links only, but not the data.
- Fix stream handling to be simpler.
- Add Priority and Bootstrap to Run a Job.
- Eliminate Restore "Run Restore Job" prompt by allowing new "run command
to be issued"
- Remove View FileSet button from Run a Job dialog.
- Handle prompt for restore job at end of Restore command.
- Add display of total selected files to Restore window.
- Add tree pane to left of window.
- Add progress meter.
- Max wait time or max run time causes seg fault -- see runtime-bug.txt
- Add message to user to check for fixed block size when the forward
space test fails in btape.
- When unmarking a directory check if all files below are unmarked and
then remove the + flag -- in the restore tree.
- Possibly implement: Action = Unmount Device="TapeDrive1" in Admin jobs.
- Setup lrrd graphs: (http://www.linpro.no/projects/lrrd/) Mike Acar.
- Revisit the question of multiple Volumes (disk) on a single device.
- Add a block copy option to bcopy.
- Fix "llist jobid=xx" where no fileset or client exists.
- For each job type (Admin, Restore, ...) require only the really necessary
fields.- Pass Director resource name as an option to the Console.
- Add a "batch" mode to the Console (no unsolicited queries, ...).
- Allow browsing the catalog to see all versions of a file (with
stat data on each file).
- Restore attributes of directory if replace=never set but directory
did not exist.
- Use SHA1 on authentication if possible.
- See comtest-xxx.zip for Windows code to talk to USB.
- Add John's appended files:
Appended = { /files/server/logs/http/*log }
and such files would be treated as follows.On a FULL backup, they would
be backed up like any other file.On an INCREMENTAL backup, where a
previous INCREMENTAL or FULL was already in thecatalogue and the length
of the file wasgreater than the length of the last backup, only thedata
added since the last backup will be dumped.On an INCREMENTAL backup, if
the length of the file is less than thelength of the file with the same
name last backed up, the completefile is dumped.On Windows systems, with
creation date of files, we can be evensmarter about this and not count
entirely upon the length.On a restore, the full and all incrementals
since it will beapplied in sequence to restore the file.
- Check new HAVE_WIN32 open bits.
- Check if the tape has moved before writing.
- Handling removable disks -- see below:
- Add FromClient and ToClient keywords on restore command (or
BackupClient RestoreClient).
- Implement a JobSet, which groups any number of jobs. If the
JobSet is started, all the jobs are started together.
Allow Pool, Level, and Schedule overrides.
- Look at updating Volume Jobs so that Max Volume Jobs = 1 will work
correctly for multiple simultaneous jobs.
- Implement the Media record flag that indicates that the Volume does disk
addressing.
- Fix fast block rejection (stored/read_record.c:118). It passes a null
pointer (rec) to try_repositioning().
- Implement RestoreJobRetention? Maybe better "JobRetention" in a Job,
which would take precidence over the Catalog "JobRetention".
- Implement Label Format in Add and Label console commands.
- Put email tape request delays on one or more variables. User wants
to cancel the job after a certain time interval. Maximum Mount Wait?
- Job, Client, Device, Pool, or Volume?
Is it possible to make this a directive which is *optional* in multiple
resources, like Level? If so, I think I'd make it an optional directive
in Job, Client, and Pool, with precedence such that Job overrides Client
which in turn overrides Pool.
- New Storage specifications:
- Want to write to multiple storage devices simultaneously
- Want to write to multiple storage devices sequentially (in one job)
- Want to read/write simultaneously
- Key is MediaType -- it must match
Passed to SD as a sort of BSR record called Storage Specification
Record or SSR.
SSR
Next -> Next SSR
MediaType -> Next MediaType
Pool -> Next Pool
Device -> Next Device
Job Resource
Allow multiple Storage specifications
New flags
One Archive = yes
One Device = yes
One Storage = yes
One MediaType = yes
One Pool = yes
Storage
Allow Multiple Pool specifications (note, Pool currently
in Job resource).
Allow Multiple MediaType specifications in Dir conf
Allow Multiple Device specifications in Dir conf
Perhaps keep this in a single SSR
Tie a Volume to a specific device by using a MediaType that
is contained in only one device.
In SD allow Device to have Multiple MediaTypes
- Ideas from Jerry Scharf:
First let's point out some big pluses that bacula has for this
it's open source
more importantly it's active. Thank you so much for that
even more important, it's not flaky
it has an open access catalog, opening many possibilities
it's pushing toward heterogeneous systems capability
big things:
Macintosh file client
working bare iron recovery for windows
the option for inc/diff backups not reset on fileset revision
a) use both change and inode update time against base time
b) do the full catalog check (expensive but accurate)
sizing guide (how much system is needed to back up N systems/files)
consultants on using bacula in building a disaster recovery system
an integration guide