Projects:
Bacula Projects Roadmap
- 24 November 2005
+ 07 December 2005
+ (prioritized by user vote)
+
+Summary:
+Item 1: Implement data encryption (as opposed to comm encryption)
+Item 2: Implement Migration that moves Jobs from one Pool to another.
+Item 3: Accurate restoration of renamed/deleted files from
+Item 4: Implement a Bacula GUI/management tool using Python.
+Item 5: Implement Base jobs.
+Item 6: Allow FD to initiate a backup
+Item 7: Improve Bacula's tape and drive usage and cleaning management.
+Item 8: Implement creation and maintenance of copy pools
+Item 9: Implement new {Client}Run{Before|After}Job feature.
+Item 10: Merge multiple backups (Synthetic Backup or Consolidation).
+Item 11: Deletion of Disk-Based Bacula Volumes
+Item 12: Directive/mode to backup only file changes, not entire file
+Item 13: Multiple threads in file daemon for the same job
+Item 14: Implement red/black binary tree routines.
+Item 15: Add support for FileSets in user directories CACHEDIR.TAG
+Item 16: Implement extraction of Win32 BackupWrite data.
+Item 17: Implement a Python interface to the Bacula catalog.
+Item 18: Archival (removal) of User Files to Tape
+Item 19: Add Plug-ins to the FileSet Include statements.
+Item 20: Implement more Python events in Bacula.
+Item 21: Quick release of FD-SD connection after backup.
+Item 22: Permit multiple Media Types in an Autochanger
+Item 23: Allow different autochanger definitions for one autochanger.
+Item 24: Automatic disabling of devices
+Item 25: Implement huge exclude list support using hashing.
+
Below, you will find more information on future projects:
-Item 1: Implement a Migration job type that will move the job
- data from one device to another.
+Item 1: Implement data encryption (as opposed to comm encryption)
+ Date: 28 October 2005
+ Origin: Sponsored by Landon and 13 contributors to EFF.
+ Status: Landon Fuller is currently implementing this.
+
+ What: Currently the data that is stored on the Volume is not
+ encrypted. For confidentiality, encryption of data at
+ the File daemon level is essential.
+ Data encryption encrypts the data in the File daemon and
+ decrypts the data in the File daemon during a restore.
+
+ Why: Large sites require this.
+
+Item 2: Implement Migration that moves Jobs from one Pool to another.
Origin: Sponsored by Riege Software International GmbH. Contact:
Daniel Holtkamp <holtkamp at riege dot com>
Date: 28 October 2005
Number of Jobs
Number of Volumes
+Item 3: Accurate restoration of renamed/deleted files from
+ Incremental/Differential backups
+ Date: 28 November 2005
+ Origin: Martin Simmons (martin at lispworks dot com)
+ Status:
-Item 2: Implement extraction of Win32 BackupWrite data.
- Origin: Thorsten Engel <thorsten.engel at matrix-computer dot com>
- Date: 28 October 2005
- Status: Assigned to Thorsten. Implemented in current CVS
+ What: When restoring a fileset for a specified date (including "most
+ recent"), Bacula should give you exactly the files and directories
+ that existed at the time of the last backup prior to that date.
- What: This provides the Bacula File daemon with code that
- can pick apart the stream output that Microsoft writes
- for BackupWrite data, and thus the data can be read
- and restored on non-Win32 machines.
+ Currently this only works if the last backup was a Full backup.
+ When the last backup was Incremental/Differential, files and
+ directories that have been renamed or deleted since the last Full
+ backup are not currently restored correctly. Ditto for files with
+ extra/fewer hard links than at the time of the last Full backup.
- Why: BackupWrite data is the portable=no option in Win32
- FileSets, and in previous Baculas, this data could
- only be extracted using a Win32 FD. With this new code,
- the Windows data can be extracted and restored on
- any OS.
+ Why: Incremental/Differential would be much more useful if this worked.
+ Notes: Item 14 (Merging of multiple backups into a single one) seems to
+ rely on this working, otherwise the merged backups will not be
+ truly equivalent to a Full backup.
-Item 3: Implement a Bacula GUI/management tool using Python
- and Qt.
+ Kern: notes shortened. This can be done without the need for
+ inodes. It is essentially the same as the current Verify job,
+ but one additional database record must be written, which does
+ not need any database change.
+ Kern: see if we can correct restoration of directories if
+ replace=ifnewer is set. Currently, if the directory does not
+ exist, a "dummy" directory is created, then when all the files
+ are updated, the dummy directory is newer so the real values
+ are not updated.
+
+Item 4: Implement a Bacula GUI/management tool using Python.
Origin: Kern
Date: 28 October 2005
Status:
What: Implement a Bacula console, and management tools
- using Python and Qt.
+ using Python and Qt or GTK.
Why: Don't we already have a wxWidgets GUI? Yes, but
it is written in C++ and changes to the user interface
Python, which will give many more users easy (or easier)
access to making additions or modifications.
-Item 4: Implement a Python interface to the Bacula catalog.
- Date: 28 October 2005
- Origin: Kern
- Status:
-
- What: Implement an interface for Python scripts to access
- the catalog through Bacula.
-
- Why: This will permit users to customize Bacula through
- Python scripts.
-
-Item 5: Implement more Python events in Bacula.
- Date: 28 October 2005
- Origin:
- Status:
-
- What: Allow Python scripts to be called at more places
- within Bacula and provide additional access to Bacula
- internal variables.
-
- Why: This will permit users to customize Bacula through
- Python scripts.
-
- Notes: Recycle event
- Scratch pool event
- NeedVolume event
- MediaFull event
-
- Also add a way to get a listing of currently running
- jobs (possibly also scheduled jobs).
-
+ Notes: This is currently being implemented using Python-GTK by
+ Lucas Di Pentima <lucas at lunix dot com dot ar>
-Item 6: Implement Base jobs.
+Item 5: Implement Base jobs.
Date: 28 October 2005
Origin: Kern
Status:
FD a list of files/attribs, and the FD must search the
list and compare it for each file to be saved.
-Item 7: Add Plug-ins to the FileSet Include statements.
- Date: 28 October 2005
- Origin:
- Status: Partially coded in 1.37 -- much more to do.
-
- What: Allow users to specify wild-card and/or regular
- expressions to be matched in both the Include and
- Exclude directives in a FileSet. At the same time,
- allow users to define plug-ins to be called (based on
- regular expression/wild-card matching).
+Item 6: Allow FD to initiate a backup
+ Origin: Frank Volf (frank at deze dot org)
+ Date: 17 November 2005
+ Status:
- Why: This would give the users the ultimate ability to control
- how files are backed up/restored. A user could write a
- plug-in knows how to backup his Oracle database without
- stopping/starting it, for example.
+ What: Provide some means, possibly by a restricted console that
+ allows a FD to initiate a backup, and that uses the connection
+ established by the FD to the Director for the backup so that
+ a Director that is firewalled can do the backup.
-Item 8: Implement huge exclude list support using hashing.
- Date: 28 October 2005
- Origin: Kern
- Status:
+ Why: Makes backup of laptops much easier.
- What: Allow users to specify very large exclude list (currently
- more than about 1000 files is too many).
+Item 7: Improve Bacula's tape and drive usage and cleaning management.
+ Date: 8 November 2005, November 11, 2005
+ Origin: Adam Thornton <athornton at sinenomine dot net>,
+ Arno Lehmann <al at its-lehmann dot de>
+ Status:
- Why: This would give the users the ability to exclude all
- files that are loaded with the OS (e.g. using rpms
- or debs). If the user can restore the base OS from
- CDs, there is no need to backup all those files. A
- complete restore would be to restore the base OS, then
- do a Bacula restore. By excluding the base OS files, the
- backup set will be *much* smaller.
+ What: Make Bacula manage tape life cycle information, tape reuse
+ times and drive cleaning cycles.
+
+ Why: All three parts of this project are important when operating
+ backups.
+ We need to know which tapes need replacement, and we need to
+ make sure the drives are cleaned when necessary. While many
+ tape libraries and even autoloaders can handle all this
+ automatically, support by Bacula can be helpful for smaller
+ (older) libraries and single drives. Limiting the number of
+ times a tape is used might prevent tape errors when using
+ tapes until the drives can't read it any more. Also, checking
+ drive status during operation can prevent some failures (as I
+ [Arno] had to learn the hard way...)
+
+ Notes: First, Bacula could (and even does, to some limited extent)
+ record tape and drive usage. For tapes, the number of mounts,
+ the amount of data, and the time the tape has actually been
+ running could be recorded. Data fields for Read and Write
+ time and Number of mounts already exist in the catalog (I'm
+ not sure if VolBytes is the sum of all bytes ever written to
+ that volume by Bacula). This information can be important
+ when determining which media to replace. The ability to mark
+ Volumes as "used up" after a given number of write cycles
+ should also be implemented so that a tape is never actually
+ worn out. For the tape drives known to Bacula, similar
+ information is interesting to determine the device status and
+ expected life time: Time it's been Reading and Writing, number
+ of tape Loads / Unloads / Errors. This information is not yet
+ recorded as far as I [Arno] know. A new volume status would
+ be necessary for the new state, like "Used up" or "Worn out".
+ Volumes with this state could be used for restores, but not
+ for writing. These volumes should be migrated first (assuming
+ migration is implemented) and, once they are no longer needed,
+ could be moved to a Trash pool.
+
+ The next step would be to implement a drive cleaning setup.
+ Bacula already has knowledge about cleaning tapes. Once it
+ has some information about cleaning cycles (measured in drive
+ run time, number of tapes used, or calender days, for example)
+ it can automatically execute tape cleaning (with an
+ autochanger, obviously) or ask for operator assistance loading
+ a cleaning tape.
+
+ The final step would be to implement TAPEALERT checks not only
+ when changing tapes and only sending the information to the
+ administrator, but rather checking after each tape error,
+ checking on a regular basis (for example after each tape
+ file), and also before unloading and after loading a new tape.
+ Then, depending on the drives TAPEALERT state and the known
+ drive cleaning state Bacula could automatically schedule later
+ cleaning, clean immediately, or inform the operator.
+
+ Implementing this would perhaps require another catalog change
+ and perhaps major changes in SD code and the DIR-SD protocol,
+ so I'd only consider this worth implementing if it would
+ actually be used or even needed by many people.
+
+ Implementation of these projects could happen in three distinct
+ sub-projects: Measuring Tape and Drive usage, retiring
+ volumes, and handling drive cleaning and TAPEALERTs.
+
+Item 8: Implement creation and maintenance of copy pools
+ Date: 27 November 2005
+ Origin: David Boyes (dboyes at sinenomine dot net)
+ Status:
+ What: I would like Bacula to have the capability to write copies
+ of backed-up data on multiple physical volumes selected
+ from different pools without transferring the data
+ multiple times, and to accept any of the copy volumes
+ as valid for restore.
+
+ Why: In many cases, businesses are required to keep offsite
+ copies of backup volumes, or just wish for simple
+ protection against a human operator dropping a storage
+ volume and damaging it. The ability to generate multiple
+ volumes in the course of a single backup job allows
+ customers to simple check out one copy and send it
+ offsite, marking it as out of changer or otherwise
+ unavailable. Currently, the library and magazine
+ management capability in Bacula does not make this process
+ simple.
+
+ Restores would use the copy of the data on the first
+ available volume, in order of copy pool chain definition.
+
+ This is also a major scalability issue -- as the number of
+ clients increases beyond several thousand, and the volume
+ of data increases, transferring the data multiple times to
+ produce additional copies of the backups will become
+ physically impossible due to transfer speed
+ issues. Generating multiple copies at server side will
+ become the only practical option.
+
+ How: I suspect that this will require adding a multiplexing
+ SD that appears to be a SD to a specific FD, but 1-n FDs
+ to the specific back end SDs managing the primary and copy
+ pools. Storage pools will also need to acquire parameters
+ to define the pools to be used for copies.
+
+ Notes: I would commit some of my developers' time if we can agree
+ on the design and behavior.
+
+Item 9: Implement new {Client}Run{Before|After}Job feature.
+ Date: 26 September 2005
+ Origin: Phil Stracchino <phil.stracchino at speakeasy dot net>
+ Status:
-Item 9: Implement data encryption (as opposed to communications
- encryption)
- Date: 28 October 2005
- Origin: Sponsored by Landon and 13 contributors to EFF.
- Status: Landon Fuller is currently implementing this.
-
- What: Currently the data that is stored on the Volume is not
- encrypted. For confidentiality, encryption of data at
- the File daemon level is essential.
- Data encryption encrypts the data in the File daemon and
- decrypts the data in the File daemon during a restore.
+ What: Some time ago, there was a discussion of RunAfterJob and
+ ClientRunAfterJob, and the fact that they do not run after failed
+ jobs. At the time, there was a suggestion to add a
+ RunAfterFailedJob directive (and, presumably, a matching
+ ClientRunAfterFailedJob directive), but to my knowledge these
+ were never implemented.
- Why: Large sites require this.
+ An alternate way of approaching the problem has just occurred to
+ me. Suppose the RunBeforeJob and RunAfterJob directives were
+ expanded in a manner something like this example:
-Item 10: Permit multiple Media Types in an Autochanger
- Origin:
- Status:
+ RunBeforeJob {
+ Command = "/opt/bacula/etc/checkhost %c"
+ RunsOnClient = No
+ RunsAtJobLevels = All # All, Full, Diff, Inc
+ AbortJobOnError = Yes
+ }
+ RunBeforeJob {
+ Command = c:/bacula/systemstate.bat
+ RunsOnClient = yes
+ RunsAtJobLevels = All # All, Full, Diff, Inc
+ AbortJobOnError = No
+ }
- What: Modify the Storage daemon so that multiple Media Types
- can be specified in an autochanger. This would be somewhat
- of a simplistic implementation in that each drive would
- still be allowed to have only one Media Type. However,
- the Storage daemon will ensure that only a drive with
- the Media Type that matches what the Director specifies
- is chosen.
+ RunAfterJob {
+ Command = c:/bacula/deletestatefile.bat
+ RunsOnClient = Yes
+ RunsAtJobLevels = All # All, Full, Diff, Inc
+ RunsOnSuccess = Yes
+ RunsOnFailure = Yes
+ }
+ RunAfterJob {
+ Command = c:/bacula/somethingelse.bat
+ RunsOnClient = Yes
+ RunsAtJobLevels = All
+ RunsOnSuccess = No
+ RunsOnFailure = Yes
+ }
+ RunAfterJob {
+ Command = "/opt/bacula/etc/checkhost -v %c"
+ RunsOnClient = No
+ RunsAtJobLevels = All
+ RunsOnSuccess = No
+ RunsOnFailure = Yes
+ }
- Why: This will permit user with several different drive types
- to make full use of their autochangers.
-Item 11: Allow two different autochanger definitions that refer
- to the same autochanger.
- Date: 28 October 2005
- Origin: Kern
- Status:
+ Why: It would be a significant change to the structure of the
+ directives, but allows for a lot more flexibility, including
+ RunAfter commands that will run regardless of whether the job
+ succeeds, or RunBefore tasks that still allow the job to run even
+ if that specific RunBefore fails.
- What: Currently, the autochanger script is locked based on
- the autochanger. That is, if multiple drives are being
- simultaneously used, the Storage daemon ensures that only
- one drive at a time can access the mtx-changer script.
- This change would base the locking on the control device,
- rather than the autochanger. It would then permit two autochanger
- definitions for the same autochanger, but with different
- drives. Logically, the autochanger could then be "partitioned"
- for different jobs, clients, or class of jobs, and if the locking
- is based on the control device (e.g. /dev/sg0) the mtx-changer
- script will be locked appropriately.
+ Notes: By Kern: I would prefer to have a single new Resource called
+ RunScript. More notes from Phil:
- Why: This will permit users to partition autochangers for specific
- use. It would also permit implementation of multiple Media
- Types with no changes to the Storage daemon.
+ RunBeforeJob = yes|no
+ RunAfterJob = yes|no
+ RunsAtJobLevels = All|Full|Diff|Inc
-Item 12: Implement red/black binary tree routines.
- Date: 28 October 2005
- Origin: Kern
- Status:
+ The AbortJobOnError, RunsOnSuccess and RunsOnFailure directives
+ could be optional, and possibly RunsWhen as well.
- What: Implement a red/black binary tree class. This could
- then replace the current binary insert/search routines
- used in the restore in memory tree. This could significantly
- speed up the creation of the in memory restore tree.
+ AbortJobOnError would be ignored unless RunsWhen was set to Before
+ (or RunsBefore Job set to Yes), and would default to Yes if
+ omitted. If AbortJobOnError was set to No, failure of the script
+ would still generate a warning.
- Why: Performance enhancement.
+ RunsOnSuccess would be ignored unless RunsWhen was set to After
+ (or RunsBeforeJob set to No), and default to Yes.
-Item 13: Improve Baculas tape and drive usage management.
- Date: 8 November 2005, November 11, 2005
- Origin: Adam Thornton <athornton at sinenomine dot net>,
- Arno Lehmann <al at its-lehmann dot de>
- Status:
+ RunsOnFailure would be ignored unless RunsWhen was set to After,
+ and default to No.
- What: Make Bacula manage tape life cycle information, tape reuse
- times and drive cleaning cycles.
-
- Why: All three parts of this project are important when operating
- backups.
- We need to know which tapes need replacement, and we need to
- make sure the drives are cleaned when necessary. While many
- tape libraries and even autoloaders can handle all this
- automatically, support by Bacula can be helpful for smaller
- (older) libraries and single drives. Limiting the number of
- times a tape is used might prevent tape errors when using
- tapes until the drives can't read it any more. Also, checking
- drive status during operation can prevent some failures (as I
- [Arno] had to learn the hard way...)
-
- Notes: First, Bacula could (and even does, to some limited extent)
- record tape and drive usage. For tapes, the number of mounts,
- the amount of data, and the time the tape has actually been
- running could be recorded. Data fields for Read and Write
- time and Number of mounts already exist in the catalog (I'm
- not sure if VolBytes is the sum of all bytes ever written to
- that volume by Bacula). This information can be important
- when determining which media to replace. The ability to mark
- Volumes as "used up" after a given number of write cycles
- should also be implemented so that a tape is never actually
- worn out. For the tape drives known to Bacula, similar
- information is interesting to determine the device status and
- expected life time: Time it's been Reading and Writing, number
- of tape Loads / Unloads / Errors. This information is not yet
- recorded as far as I [Arno] know. A new volume status would
- be necessary for the new state, like "Used up" or "Worn out".
- Volumes with this state could be used for restores, but not
- for writing. These volumes should be migrated first (assuming
- migration is implemented) and, once they are no longer needed,
- could be moved to a Trash pool.
-
- The next step would be to implement a drive cleaning setup.
- Bacula already has knowledge about cleaning tapes. Once it
- has some information about cleaning cycles (measured in drive
- run time, number of tapes used, or calender days, for example)
- it can automatically execute tape cleaning (with an
- autochanger, obviously) or ask for operator assistance loading
- a cleaning tape.
-
- The final step would be to implement TAPEALERT checks not only
- when changing tapes and only sending the information to the
- administrator, but rather checking after each tape error,
- checking on a regular basis (for example after each tape
- file), and also before unloading and after loading a new tape.
- Then, depending on the drives TAPEALERT state and the known
- drive cleaning state Bacula could automatically schedule later
- cleaning, clean immediately, or inform the operator.
-
- Implementing this would perhaps require another catalog change
- and perhaps major changes in SD code and the DIR-SD protocol,
- so I'd only consider this worth implementing if it would
- actually be used or even needed by many people.
-
- Implementation of these projects could happen in three distinct
- sub-projects: Measuring Tape and Drive usage, retiring
- volumes, and handling drive cleaning and TAPEALERTs.
-
-
-Item 14: Merging of multiple backups into a single one. (Also called Synthetic
- Backup or Consolidation).
+ Allow having the before/after status on the script command
+ line so that the same script can be used both before/after.
+ David Boyes.
+Item 10: Merge multiple backups (Synthetic Backup or Consolidation).
Origin: Marc Cousin and Eric Bollengier
Date: 15 November 2005
Status: Depends on first implementing project Item 1 (Migration).
data can then be pruned (or not) from the catalog, possibly
allowing older volumes to be recycled
-Item 15: Automatic disabling of devices
- Date: 2005-11-11
- Origin: Peter Eriksson <peter at ifm.liu dot se>
- Status:
+Item 11: Deletion of Disk-Based Bacula Volumes
+ Date: Nov 25, 2005
+ Origin: Ross Boylan <RossBoylan at stanfordalumni dot org> (edited
+ by Kern)
+ Status:
- What: After a configurable amount of fatal errors with a tape drive
- Bacula should automatically disable further use of a certain
- tape drive. There should also be "disable"/"enable" commands in
- the "bconsole" tool.
+ What: Provide a way for Bacula to automatically remove Volumes
+ from the filesystem, or optionally to truncate them.
+ Obviously, the Volume must be pruned prior removal.
- Why: On a multi-drive jukebox there is a possibility of tape drives
- going bad during large backups (needing a cleaning tape run,
- tapes getting stuck). It would be advantageous if Bacula would
- automatically disable further use of a problematic tape drive
- after a configurable amount of errors has occurred.
+ Why: This would allow users more control over their Volumes and
+ prevent disk based volumes from consuming too much space.
- An example: I have a multi-drive jukebox (6 drives, 380+ slots)
- where tapes occasionally get stuck inside the drive. Bacula will
- notice that the "mtx-changer" command will fail and then fail
- any backup jobs trying to use that drive. However, it will still
- keep on trying to run new jobs using that drive and fail -
- forever, and thus failing lots and lots of jobs... Since we have
- many drives Bacula could have just automatically disabled
- further use of that drive and used one of the other ones
- instead.
+ Notes: The following two directives might do the trick:
+
+ Volume Data Retention = <time period>
+ Remove Volume After = <time period>
+ The migration project should also remove a Volume that is
+ migrated. This might also work for tape Volumes.
-Item 16: Directive/mode to backup only file changes, not entire file
+Item 12: Directive/mode to backup only file changes, not entire file
Date: 11 November 2005
Origin: Joshua Kugler <joshua dot kugler at uaf dot edu>
Marek Bajon <mbajon at bimsplus dot com dot pl>
Notes: This would require the usage of disk-based volumes as comparing
files would not be feasible using a tape drive.
-Item 17: Quick release of FD-SD connection
- Origin: Frank Volf (frank at deze dot org)
- Date: 17 November 2005
+Item 13: Multiple threads in file daemon for the same job
+ Date: 27 November 2005
+ Origin: Ove Risberg (Ove.Risberg at octocode dot com)
Status:
- What: In the Bacula implementation a backup is finished after all data
- and attributes are successfully written to storage. When using a
- tape backup it is very annoying that a backup can take a day,
- simply because the current tape (or whatever) is full and the
- administrator has not put a new one in. During that time the
- system cannot be taken off-line, because there is still an open
- session between the storage daemon and the file daemon on the
- client.
-
- Although this is a very good strategy for making "safe backups"
- This can be annoying for e.g. laptops, that must remain
- connected until the backup is completed.
+ What: I want the file daemon to start multiple threads for a backup
+ job so the fastest possible backup can be made.
- Using a new feature called "migration" it will be possible to
- spool first to harddisk (using a special 'spool' migration
- scheme) and then migrate the backup to tape.
+ The file daemon could parse the FileSet information and start
+ one thread for each File entry located on a separate
+ filesystem.
- There is still the problem of getting the attributes committed.
- If it takes a very long time to do, with the current code, the
- job has not terminated, and the File daemon is not freed up. The
- Storage daemon should release the File daemon as soon as all the
- file data and all the attributes have been sent to it (the SD).
- Currently the SD waits until everything is on tape and all the
- attributes are transmitted to the Director before signaling
- completion to the FD. I don't think I would have any problem
- changing this. The reason is that even if the FD reports back to
- the Dir that all is OK, the job will not terminate until the SD
- has done the same thing -- so in a way keeping the SD-FD link
- open to the very end is not really very productive ...
+ A configuration option in the job section should be used to
+ enable or disable this feature. The configuration option could
+ specify the maximum number of threads in the file daemon.
- Why: Makes backup of laptops much easier.
+ If the theads could spool the data to separate spool files
+ the restore process will not be much slower.
+
+ Why: Multiple concurrent backups of a large fileserver with many
+ disks and controllers will be much faster.
+
+ Notes: I am willing to try to implement this but I will probably
+ need some help and advice. (No problem -- Kern)
+
+Item 14: Implement red/black binary tree routines.
+ Date: 28 October 2005
+ Origin: Kern
+ Status:
+
+ What: Implement a red/black binary tree class. This could
+ then replace the current binary insert/search routines
+ used in the restore in memory tree. This could significantly
+ speed up the creation of the in memory restore tree.
+ Why: Performance enhancement.
-Item 18: Add support for CACHEDIR.TAG
+Item 15: Add support for FileSets in user directories CACHEDIR.TAG
Origin: Norbert Kiesel <nkiesel at tbdnetworks dot com>
Date: 21 November 2005
Status:
Notes: I envision this as an optional feature to a fileset
specification.
-Item 19: Implement new {Client}Run{Before|After}Job feature.
- Date: 26 September 2005
- Origin: Phil Stracchino <phil.stracchino at speakeasy dot net>
- Status:
- What: Some time ago, there was a discussion of RunAfterJob and
- ClientRunAfterJob, and the fact that they do not run after failed
- jobs. At the time, there was a suggestion to add a
- RunAfterFailedJob directive (and, presumably, a matching
- ClientRunAfterFailedJob directive), but to my knowledge these
- were never implemented.
-
- An alternate way of approaching the problem has just occurred to
- me. Suppose the RunBeforeJob and RunAfterJob directives were
- expanded in a manner something like this example:
-
- RunBeforeJob {
- Command = "/opt/bacula/etc/checkhost %c"
- RunsOnClient = No
- RunsAtJobLevels = All # All, Full, Diff, Inc
- AbortJobOnError = Yes
- }
- RunBeforeJob {
- Command = c:/bacula/systemstate.bat
- RunsOnClient = yes
- RunsAtJobLevels = All # All, Full, Diff, Inc
- AbortJobOnError = No
- }
-
- RunAfterJob {
- Command = c:/bacula/deletestatefile.bat
- RunsOnClient = Yes
- RunsAtJobLevels = All # All, Full, Diff, Inc
- RunsOnSuccess = Yes
- RunsOnFailure = Yes
- }
- RunAfterJob {
- Command = c:/bacula/somethingelse.bat
- RunsOnClient = Yes
- RunsAtJobLevels = All
- RunsOnSuccess = No
- RunsOnFailure = Yes
- }
- RunAfterJob {
- Command = "/opt/bacula/etc/checkhost -v %c"
- RunsOnClient = No
- RunsAtJobLevels = All
- RunsOnSuccess = No
- RunsOnFailure = Yes
- }
-
-
- Why: It would be a significant change to the structure of the
- directives, but allows for a lot more flexibility, including
- RunAfter commands that will run regardless of whether the job
- succeeds, or RunBefore tasks that still allow the job to run even
- if that specific RunBefore fails.
-
- Notes: By Kern: I would prefer to have a single new Resource called
- RunScript. More notes from Phil:
-
- RunBeforeJob = yes|no
- RunAfterJob = yes|no
- RunsAtJobLevels = All|Full|Diff|Inc
-
- The AbortJobOnError, RunsOnSuccess and RunsOnFailure directives
- could be optional, and possibly RunsWhen as well.
-
- AbortJobOnError would be ignored unless RunsWhen was set to Before
- (or RunsBefore Job set to Yes), and would default to Yes if
- omitted. If AbortJobOnError was set to No, failure of the script
- would still generate a warning.
-
- RunsOnSuccess would be ignored unless RunsWhen was set to After
- (or RunsBeforeJob set to No), and default to Yes.
-
- RunsOnFailure would be ignored unless RunsWhen was set to After,
- and default to No.
-
- Allow having the before/after status on the script command
- line so that the same script can be used both before/after.
- David Boyes.
-
-Item 20: Allow FD to initiate a backup
- Origin: Frank Volf (frank at deze dot org)
- Date: 17 November 2005
- Status:
-
- What: Provide some means, possibly by a restricted console that
- allows a FD to initiate a backup, and that uses the connection
- established by the FD to the Director for the backup so that
- a Director that is firewalled can do the backup.
-
- Why: Makes backup of laptops much easier.
-
-Item 21: Multiple threads in file daemon for the same job
- Date: 27 November 2005
- Origin: Ove Risberg (Ove.Risberg at octocode dot com)
- Status:
+Item 16: Implement extraction of Win32 BackupWrite data.
+ Origin: Thorsten Engel <thorsten.engel at matrix-computer dot com>
+ Date: 28 October 2005
+ Status: Assigned to Thorsten. Implemented in current CVS
- What: I want the file daemon to start multiple threads for a backup
- job so the fastest possible backup can be made.
+ What: This provides the Bacula File daemon with code that
+ can pick apart the stream output that Microsoft writes
+ for BackupWrite data, and thus the data can be read
+ and restored on non-Win32 machines.
- The file daemon could parse the FileSet information and start
- one thread for each File entry located on a separate
- filesystem.
+ Why: BackupWrite data is the portable=no option in Win32
+ FileSets, and in previous Baculas, this data could
+ only be extracted using a Win32 FD. With this new code,
+ the Windows data can be extracted and restored on
+ any OS.
- A configuration option in the job section should be used to
- enable or disable this feature. The configuration option could
- specify the maximum number of threads in the file daemon.
- If the theads could spool the data to separate spool files
- the restore process will not be much slower.
+Item 18: Implement a Python interface to the Bacula catalog.
+ Date: 28 October 2005
+ Origin: Kern
+ Status:
- Why: Multiple concurrent backups of a large fileserver with many
- disks and controllers will be much faster.
+ What: Implement an interface for Python scripts to access
+ the catalog through Bacula.
- Notes: I am willing to try to implement this but I will probably
- need some help and advice. (No problem -- Kern)
+ Why: This will permit users to customize Bacula through
+ Python scripts.
-Item 22: Archival of Data to Tape
+Item 18: Archival (removal) of User Files to Tape
Date: Nov. 24/2005
access time. Then after another 6 months (or possibly as one
storage pool gets full) data is migrated to Tape.
+Item 19: Add Plug-ins to the FileSet Include statements.
+ Date: 28 October 2005
+ Origin:
+ Status: Partially coded in 1.37 -- much more to do.
-Item 22: Deletion of Disk-Based Volumes
- Date: Nov 25, 2005
- Origin: Ross Boylan <RossBoylan at stanfordalumni dot org> (edited
- by Kern)
- Status:
+ What: Allow users to specify wild-card and/or regular
+ expressions to be matched in both the Include and
+ Exclude directives in a FileSet. At the same time,
+ allow users to define plug-ins to be called (based on
+ regular expression/wild-card matching).
- What: Provide a way for Bacula to automatically remove Volumes
- from the filesystem, or optionally to truncate them.
- Obviously, the Volume must be pruned prior removal.
+ Why: This would give the users the ultimate ability to control
+ how files are backed up/restored. A user could write a
+ plug-in knows how to backup his Oracle database without
+ stopping/starting it, for example.
- Why: This would allow users more control over their Volumes and
- prevent disk based volumes from consuming too much space.
+Item 20: Implement more Python events in Bacula.
+ Date: 28 October 2005
+ Origin:
+ Status:
- Notes: The following two directives might do the trick:
+ What: Allow Python scripts to be called at more places
+ within Bacula and provide additional access to Bacula
+ internal variables.
- Volume Data Retention = <time period>
- Remove Volume After = <time period>
+ Why: This will permit users to customize Bacula through
+ Python scripts.
- The migration project should also remove a Volume that is
- migrated. This might also work for tape Volumes.
+ Notes: Recycle event
+ Scratch pool event
+ NeedVolume event
+ MediaFull event
+
+ Also add a way to get a listing of currently running
+ jobs (possibly also scheduled jobs).
+
+
+Item 21: Quick release of FD-SD connection after backup.
+ Origin: Frank Volf (frank at deze dot org)
+ Date: 17 November 2005
+ Status:
+
+ What: In the Bacula implementation a backup is finished after all data
+ and attributes are successfully written to storage. When using a
+ tape backup it is very annoying that a backup can take a day,
+ simply because the current tape (or whatever) is full and the
+ administrator has not put a new one in. During that time the
+ system cannot be taken off-line, because there is still an open
+ session between the storage daemon and the file daemon on the
+ client.
+
+ Although this is a very good strategy for making "safe backups"
+ This can be annoying for e.g. laptops, that must remain
+ connected until the backup is completed.
+
+ Using a new feature called "migration" it will be possible to
+ spool first to harddisk (using a special 'spool' migration
+ scheme) and then migrate the backup to tape.
+
+ There is still the problem of getting the attributes committed.
+ If it takes a very long time to do, with the current code, the
+ job has not terminated, and the File daemon is not freed up. The
+ Storage daemon should release the File daemon as soon as all the
+ file data and all the attributes have been sent to it (the SD).
+ Currently the SD waits until everything is on tape and all the
+ attributes are transmitted to the Director before signaling
+ completion to the FD. I don't think I would have any problem
+ changing this. The reason is that even if the FD reports back to
+ the Dir that all is OK, the job will not terminate until the SD
+ has done the same thing -- so in a way keeping the SD-FD link
+ open to the very end is not really very productive ...
+
+ Why: Makes backup of laptops much easier.
+
+Item 22: Permit multiple Media Types in an Autochanger
+ Origin: Kern
+ Status: Now implemented
+
+ What: Modify the Storage daemon so that multiple Media Types
+ can be specified in an autochanger. This would be somewhat
+ of a simplistic implementation in that each drive would
+ still be allowed to have only one Media Type. However,
+ the Storage daemon will ensure that only a drive with
+ the Media Type that matches what the Director specifies
+ is chosen.
+
+ Why: This will permit user with several different drive types
+ to make full use of their autochangers.
+
+Item 23: Allow different autochanger definitions for one autochanger.
+ Date: 28 October 2005
+ Origin: Kern
+ Status:
+
+ What: Currently, the autochanger script is locked based on
+ the autochanger. That is, if multiple drives are being
+ simultaneously used, the Storage daemon ensures that only
+ one drive at a time can access the mtx-changer script.
+ This change would base the locking on the control device,
+ rather than the autochanger. It would then permit two autochanger
+ definitions for the same autochanger, but with different
+ drives. Logically, the autochanger could then be "partitioned"
+ for different jobs, clients, or class of jobs, and if the locking
+ is based on the control device (e.g. /dev/sg0) the mtx-changer
+ script will be locked appropriately.
+
+ Why: This will permit users to partition autochangers for specific
+ use. It would also permit implementation of multiple Media
+ Types with no changes to the Storage daemon.
+
+Item 24: Automatic disabling of devices
+ Date: 2005-11-11
+ Origin: Peter Eriksson <peter at ifm.liu dot se>
+ Status:
+
+ What: After a configurable amount of fatal errors with a tape drive
+ Bacula should automatically disable further use of a certain
+ tape drive. There should also be "disable"/"enable" commands in
+ the "bconsole" tool.
+
+ Why: On a multi-drive jukebox there is a possibility of tape drives
+ going bad during large backups (needing a cleaning tape run,
+ tapes getting stuck). It would be advantageous if Bacula would
+ automatically disable further use of a problematic tape drive
+ after a configurable amount of errors has occurred.
+
+ An example: I have a multi-drive jukebox (6 drives, 380+ slots)
+ where tapes occasionally get stuck inside the drive. Bacula will
+ notice that the "mtx-changer" command will fail and then fail
+ any backup jobs trying to use that drive. However, it will still
+ keep on trying to run new jobs using that drive and fail -
+ forever, and thus failing lots and lots of jobs... Since we have
+ many drives Bacula could have just automatically disabled
+ further use of that drive and used one of the other ones
+ instead.
+
+Item 25: Implement huge exclude list support using hashing.
+ Date: 28 October 2005
+ Origin: Kern
+ Status:
+
+ What: Allow users to specify very large exclude list (currently
+ more than about 1000 files is too many).
+
+ Why: This would give the users the ability to exclude all
+ files that are loaded with the OS (e.g. using rpms
+ or debs). If the user can restore the base OS from
+ CDs, there is no need to backup all those files. A
+ complete restore would be to restore the base OS, then
+ do a Bacula restore. By excluding the base OS files, the
+ backup set will be *much* smaller.
+
+===============================================
+Not in Dec 2005 Vote:
+Item n: Allow skipping execution of Jobs
+ Date: 29 November 2005
+ Origin: Florian Schnabel <florian.schnabel at docufy dot de>
+ Status:
+ What: An easy option to skip a certain job on a certain date.
+ Why: You could then easily skip tape backups on holidays. Especially
+ if you got no autochanger and can only fit one backup on a tape
+ that would be really handy, other jobs could proceed normally
+ and you won't get errors that way.
============= Empty Feature Request form ===========
Item n: One line summary ...
projects / bacula / bacula / blobdiff