9 - Document running multiple Jobs
10 - Document that two Verifys at same time on same client do not work.
11 - Document how to recycle a tape in 7 days even if the backup takes a long time.
12 - Document default config file locations.
13 - Document better includes (does it cross file systems ?).
14 - Document specifically how to add new File daemon to config files.
15 - Document forcing a new tape to be used.
16 - Document "Error in message.c:500 Mail program terminated in error.
19 --bindir is wrong and does not reflect prefix= in the *_sqlite_* scripts
21 --top level configure options are not passed to the depkgs, particularly
23 --Also, it might be better to split the depkgs location from the --with-sqlite
25 --should be able to specify e.g. --with-sqlite=/opt/local and have it find
26 lib, bin, sbin for itself
27 I tried this and it didn't find sqlite.h
30 - Figure out why my Catalog size keeps growing.
32 - Make SD disallow writing on Volume with fewer files than in
34 - Check if GZIP1 is working -- check speed.
35 - Put MaximumVolumeSize in Director.
36 - Document how to cancel a job that is waiting on a Volume.
37 Must "cancel" then "mount".
38 - Document to have patience when SD first starts.
39 - Document running a test version.
40 - When Marking a file in Restore that is a hard link, also
41 mark the link so that the data will be reloaded.
42 - Restore program that errors in SD due to no tape reports
43 OK incorrectly in output.
44 - Make BSR accept count (total files to be restored).
45 - Make BSR return next_block when it knows record is not
46 in block, done when count is reached, and possibly other
47 optimizations. I.e. add a state word.
48 - After unmount, if restore job started, ask to mount.
49 - Fix db_get_fileset in cats/sql_get.c for multiple records.
50 - Fix start/end blocks for File devices
51 - Add new code to scheduler.c and run_conf.c
52 - Volume Bytes shows bytes on last volume written in Job summary.
53 - Fix catalog filename truncation in sql_get and sql_create. Use
54 only a single filename split routine.
55 - Add command to reset VolFiles to a larger value (don't allow
56 a smaller number or print big warning).
57 - Make Restore report an error if FD or SD term codes are not OK.
58 - Convert all %x substitution variables, which are hard to remember
59 and read to %(variable-name). Idea from TMDA.
60 - Report compression % and other compression statistics if turned on.
61 - Add JobLevel in FD status (but make sure it is defined).
62 - Make Pool resource handle Counter resources.
63 - Remove NextId for SQLite. Optimize.
64 - Fix gethostbyname() to use gethostbyname_r()
65 - Implement ./configure --with-client-only
66 - Strip trailing / from Include
67 - Move all SQL statements into a single location.
68 - Cleanup db_update_media and db_update_pool
69 - Add UA rc and history files.
70 - put termcap (used by console) in ./configure and
71 allow -with-termcap-dir.
72 - Remove JobMediaId it is not used.
73 - Enhance time and size scanning routines.
74 - Fix Autoprune for Volumes to respect need for full save.
75 - DateWritten field on tape may be wrong.
76 - Fix Win32 config file definition name on /install
77 - No READLINE_SRC if found in alternate directory.
78 - Add Client FS/OS id (Linux, Win95/98, ...).
79 - Put Windows files in Windows stream?
80 - Ensure that everyone uses btime routines (mostly done).
84 Bacula Projects Roadmap
86 last update 7 October 2002
88 Item 1: Multiple simultaneous Jobs. (done)
91 What: Permit multiple simultaneous jobs in Bacula.
93 Why: An enterprise level solution needs to go fast without the
94 need for the system administrator to carefully tweak
95 timing. Based on the benchmarks, during a full
96 backup, NetWorker typically hit 10 times the bandwidth to
97 the tape compared to Bacula--largely. This is probably due to
98 running parallel jobs and multi-threaded filling of buffers
99 and writing them to tape. This should also make things work
100 better when you have a mix of fast and slow machines backing
103 Notes: Bacula was designed to run multiple simultaneous jobs. Thus
104 implementing this is a matter of some small cleanups and
108 Item 2: Make the Storage daemon use intermediate file storage to buffer data.
109 Deferred -- not necessary yet.
111 What: If data is coming into the SD too fast, buffer it to
112 disk if the user has configured this option.
114 Why: This would be nice, especially if it more or less falls out
115 when implementing (1) above. If not, it probably should not
116 be given a high priority because fundamentally the backup time
117 is limited by the tape bandwidth. Even though you may finish a
118 client job quicker by spilling to disk, you still have to
119 eventually get it onto tape. If intermediate disk buffering
120 allows us to improve write bandwidth to tape, it may make
123 Notes: Whether or not this is implemented will depend upon performance
124 testing after item 1 is implemented.
127 Item 3: Write the bscan program.
130 What: Write a program that reads a Bacula tape and puts all the
131 appropriate data into the catalog. This allows recovery
132 from a tape that is no longer in the database, or it allows
133 re-creation of a database if lost.
135 Why: This is a fundamental robustness and disaster recovery tool
136 which will increase the comfort level of a sysadmin
137 considering adopting Bacula.
139 Notes: A skeleton of this program already exists, but much work
140 needs to be done. Implementing this will also make apparent
141 any deficiencies in the current Bacula tape format.
144 Item 4: Implement Base jobs.
146 What: A base job is sort of like a Full save except that you
147 will want the FileSet to contain only files that are unlikely
148 to change in the future (i.e. a snapshot of most of your
149 system after installing it). After the base job has been run,
150 when you are doing a Full save, you can specify to exclude
151 all files saved by the base job that have not been modified.
153 Why: This is something none of the competition does, as far as we know
154 (except BackupPC, which is a Perl program that saves to disk
155 only). It is big win for the user, it makes Bacula stand out
156 as offering a unique optimization that immediately saves time
159 Notes: Big savings in tape usage. Will require more resources because
160 the e. DIR must send FD a list of files/attribs, and the FD must
161 search the list and compare it for each file to be saved.
164 Item 5: Implement Label templates
166 What: This is a mechanism whereby Bacula can automatically create
167 a tape label for new tapes according to a detailed specification
168 provided by the user.
170 Why: It is a major convenience item for folks who use automated label
173 Notes: Bacula already has a working form of automatic tape label
174 creation, but it is very crude. The design for the complete
175 tape labeling project is already documented in the manual.
178 Item 6: Write a regression script.
181 What: This is an automatic script that runs and tests as many features
182 of Bacula as possible. The output is compared to previous
183 versions of Bacula and any differences are reported.
185 Why: This is an enormous help in preventing introduction of new
186 errors in parts of the program that already work correctly.
188 Notes: This probably should be ranked higher, it's something the typical
189 user doesn't see. Depending on how it's implemented, it may
190 make sense to defer it until the archival tape format and
191 user interface mature.
194 Item 7: GUI for interactive restore
195 Item 8: GUI for interactive backup
197 What: The current interactive restore is implemented with a tty
198 interface. It would be much nicer to be able to "see" the
199 list of files backed up in typical GUI tree format.
200 The same mechanism could also be used for creating
201 ad-hoc backup FileSets (item 8).
203 Why: Ease of use -- especially for the end user.
205 Notes: Rather than implementing in Gtk, we probably should go directly
206 for a Browser implementation, even if doing so meant the
207 capability wouldn't be available until much later. Not only
208 is there the question of Windows sites, most
209 Solaris/HP/IRIX, etc, shops can't currently run Gtk programs
210 without installing lots of stuff admins are very wary about.
211 Real sysadmins will always use the command line anyway, and
212 the user who's doing an interactive restore or backup of his
213 own files will in most cases be on a Windows machine running
217 Item 9: Add SSL to daemon communications.
219 What: This provides for secure communications between the daemons.
221 Why: This would allow doing backup across the Internet without
222 privacy concerns (or with much less concern).
224 Notes: The vast majority of near term potential users will be backing up
225 a single site over a LAN and, correctly or not, they probably
226 won't be concerned with security, at least not enough to go to
227 the trouble to set up keys, etc. to screw things down. We suspect
228 that many users genuinely interested in multi-site backup
229 already run some form of VPN software in their internetwork
230 connections, and are willing to delegate security to that layer.
233 Item 10: Define definitive tape format.
234 Mostly done (version 1.27)
236 What: Define that definitive tape format that will not change
237 for the next millennium.
239 Why: Stability, security.
241 Notes: See notes for item 11 below.
244 Item 11: New daemon communication protocol.
246 What: The current daemon to daemon protocol is basically an ASCII
247 printf() and sending the buffer. On the receiving end, the
248 buffer is sscanf()ed to unpack it. The new scheme would
249 be a binary format that allows quick packing and unpacking
250 of any data type with named fields.
252 Why: Using binary packing would be faster. Named fields will permit
253 error checking to ensure that what is sent is what the
254 receiver really wants.
256 Notes: These are internal improvements in the interest of the
257 long-term stability and evolution of the program. On the one
258 hand, the sooner they're done, the less code we have to rip
259 up when the time comes to install them. On the other hand, they
260 don't bring an immediately perceptible benefit to potential
261 users. Item 10 and possibly item 11 should be deferred until Bacula
262 is well established with a growing user community more or
263 less happy with the feature set. At that time, it will make a
264 good "next generation" upgrade in the interest of data
269 I haven't put these in any particular order.
272 - Rework Storage daemon with new rwl_lock routines.
273 - Compare tape to Client files (attributes, or attributes and data)
274 - Restore options (overwrite, overwrite if older,
275 overwrite if newer, never overwrite, ...)
276 - Restore to a particular time -- e.g. before date, after date.
277 - Make all database Ids 64 bit.
278 - Write an applet for Linux.
279 - Make SD reject writing on tape where Catalog and tape # files
280 don't agree (possibly OK if tape > catalog).
281 - Implement new daemon communications protocol.
282 - Send Volumes needed during restore to Console (just after
283 create_volume_list) -- also in restore command?
284 - Add estimate to Console commands
285 - Find solution to blank filename (i.e. path only) problem.
288 mysqldump -f --opt bacula >bacula
292 - Remove PoolId from Job table, it exists in Media.
293 - Allow console commands to detach or run in background.
294 - Fix status delay on storage daemon during rewind.
295 - Add VerNo to each Session label record.
296 - Add Job to Session records.
297 - Add VOLUME_CAT_INFO to the EOS tape record (as
298 well as to the EOD record).
299 - Add SD message variables to control operator wait time
300 - Maximum Operator Wait
301 - Minimum Message Interval
302 - Maximum Message Interval
303 - Add EOM handling variables
305 - Require EOD records
306 - Send Operator message when cannot read tape label.
307 - Think about how to handle I/O error on MTEOM.
308 - If Storage daemon aborts a job, ensure that this
309 is printed in the error message.
310 - Verify level=Volume (scan only), level=Data (compare of data to file).
311 Verify level=Catalog, level=InitCatalog
313 - Cold start full restore (restore catalog then
314 user selects what to restore). Write summary file containing only
315 Job, Media, and Catalog information. Store on another machine.
316 - Dump/Restore database
319 - Add keyword search to show command in Console.
320 - Fix Win2000 error with no messages during startup.
321 - Events : tape has more than xxx bytes.
322 - In Storage daemon, status should include job cancelled.
323 - Write general list maintenance subroutines.
324 - Implement immortal format with EDOs.
325 - Restrict characters permitted in a Resource name.
326 - Provide definitive identification of type in backup.
327 - Complete code in Bacula Resources -- this will permit
328 reading a new config file at any time.
329 - Document new Console
330 - Handle ctl-c in Console
331 - Test restore of Windows backup
332 - Implement LabelTemplate (at least first cut).
333 - Implement script driven addition of File daemon to
336 - Bug: anonymous Volumes requires mount in some cases.
337 - see setgroup and user for Bacula p4-5 of stunnel.c
338 - Implement new serialize subroutines
339 send(socket, "string", &Vol, "uint32", &i, NULL)
340 - Add save type to Session label.
341 - Correct date on Session label.
342 - On I/O error, write EOF, then try to write again.
343 - Audit all UA commands to ensure that we always prompt where
345 - If ./btape is called without /dev, assume argument is
346 a Storage resource name.
347 - Put memory utilization in Status output of each daemon
348 if full status requested or if some level of debug on.
349 - Make database type selectable by .conf files i.e. at runtime
350 - gethostbyname failure in bnet_connect() continues
351 generating errors -- should stop.
352 - Don't create a volume that is already written. I.e. create only once.
353 - If error at end of tape, implement some way to kill waiting processes.
354 - Add HOST to Volume label.
355 - Set flag for uname -a. Add to Volume label.
356 - Implement throttled work queue.
357 - Write bscan program that will syncronize the DB Media record with
358 the contents of the Volume -- for use after a crash.
359 - Check for EOT at ENOSPC or EIO or ENXIO (unix Pc)
360 - Allow multiple Storage specifications (or multiple names on
361 a single Storage specification) in the Job record. Thus a job
362 can be backed up to a number of storage devices.
363 - Implement full MediaLabel code.
364 - Implement dump label to UA
365 - Copy volume using single drive.
366 - Copy volume with multiple driven (same or different block size).
367 - Add block size (min, max) to Vol label.
368 - Concept of VolumeSet during restore which is a list
369 of Volume names needed.
370 - Restore files modified after date
371 - Restore file modified before date
372 - Emergency restore info:
374 - Backup working directory
376 - Restore options (do not overwrite)
377 - Restore -- do nothing but show what would happen
378 - SET LD_RUN_PATH=$HOME/mysql/lib/mysql
379 - Put Job statistics in End Session Label (files saved,
380 total bytes, start time, ...).
381 - Put FileSet name in the SOS label.
382 - Implement Restore FileSet=
383 - Write a scanner for the UA (keyword, scan-routine, result, prompt).
384 - Create a protocol.h and protocol.c where all protocol messages
386 - If SD cannot open a drive, make it periodically retry.
387 - Put Bacula version somewhere in Job stream, probably Start Session
389 - Remove duplicate fields from jcr (e.g. jcr.level and
391 - Timout a job or terminate if link goes down, or reopen link and query.
392 - Define how we handle times to avoid problem with Unix dates (2049 ?).
393 - Fill all fields in Vol/Job Header -- ensure that everything
394 needed is written to tape. Think about restore to Catalog
395 from tape. Client record needs improving.
396 - Find general solution for sscanf size problems (as well
397 as sprintf. Do at run time?
399 - Concept of precious tapes (cannot be reused).
400 - Allow FD to run from inetd ???
401 - Preprocessing command per file.
402 - Postprocessing command per file (when restoring).
404 - Restore should get Device and Pool information from
405 job record rather than from config.
406 - Autolabel should be specified by DR instead of SD.
407 - Ability to recreate the catalog from a tape.
408 - Find out how to get the system tape block limits, e.g.:
409 Apr 22 21:22:10 polymatou kernel: st1: Block limits 1 - 245760 bytes.
410 Apr 22 21:22:10 polymatou kernel: st0: Block limits 2 - 16777214 bytes.
413 - AutoScan (check checksum of tape)
414 - Format command = "format /dev/nst0"
418 - Seek resolution (usually corresponds to buffer size)
419 - EODErrorCode=ENOSPC or code
420 - Partial Read error code
421 - Partial write error code
422 - Nonformatted read error
423 - Nonformatted write error
424 - WriteProtected error
428 - IgnoreCloseErrors=yes
438 - Eliminate duplicate File records to shrink database.
439 - FD sends unsaved file list to Director at end of job.
440 - Write a Storage daemon that uses pipes and
441 standard Unix programs to write to the tape.
443 - Need something that monitors the JCR queue and
444 times out jobs by asking the deamons where they are.
445 - Add daemon JCR JobId=0 to have a daemon context
449 - Client (list of clients to force client)
450 - Devices (list of devices to force device)
455 - Recycle from other pools: Yes, No
456 - Recycle to other pools: Yes, no
459 - Optional MediaType to force media?
470 if(connect(sockfd, (struct sockaddr * ) (& addr), sizeof(addr)) .lt. 0){
476 linger.l_linger = 60;
477 i = setsockopt(sockfd, SOL_SOCKET, SO_LINGER, (char *) &linger,
480 fl = fcntl(sockfd, F_GETFL);
481 fcntl(sockfd, F_SETFL, fl & (~ O_NONBLOCK) & (~ O_NDELAY));
483 - Enhance Jmsg code to permit buffering and saving to disk.
484 - device driver = "xxxx" for drives.
485 - restart: paranoid: read label fsf to
486 eom read append block, and go
487 super-paranoid: read label, read all files
488 in between, read append block, and go
489 verify: backspace, read append block, and go
490 permissive: same as above but frees drive
491 if tape is not valid.
493 - Ensure that /dev/null works
494 - File daemon should build list of files skipped, and then
495 at end of save retry and report any errors.
496 - Need report class for messages. Perhaps
497 report resource where report=group of messages
499 - enhance scan_attrib and rename scan_jobtype, and
500 fill in code for "since" option
501 - To buffer messages, we need associated jobid and Director name.
502 - Need to save contents of FileSet to tape?
503 - Director needs a time after which the report status is sent
504 anyway -- or better yet, a retry time for the job.
505 Don't reschedule a job if previous incarnation is still running.
506 - Figure out how to save the catalog (possibly a special FileSet).
507 - Figure out how to restore the catalog.
508 - Figure out how to put a Volume into the catalog (from the tape)
509 - Figure out how to do a restore from a Volume
510 - Some way to automatically backup everything is needed????
511 - Need a structure for pending actions:
513 - termination status (part of buffered msgs?)
514 - Concept of grouping Storage devices and job can use
515 any of a number of devices
517 Read, Write, Clean, Delete
518 - Login to Bacula; Bacula users with different permissions:
520 - Tape recycle destination
521 - Job Schedule Status
525 - File daemon should pass Director the operating system info
526 to be stored in the Client Record (or verified that it has
528 - Store info on each file system type (probably in the job header on tape.
529 This could be the output of df; or perhaps some sort of /etc/mtab record.
532 - Use media 1 time (so that we can do 6 days of incremental
533 backups before switching to another tape) (already)
534 specify # times (jobs)
535 specify bytes (already)
536 specify time (seconds, hours, days)
537 - Implement FSM (File System Modules).
538 - Identify unchanged or "system" files and save them to a
539 special tape thus removing them from the standard
540 backup FileSet -- BASE backup.
541 - Turn virutally all sprintfs into snprintfs.
542 - Heartbeat between daemons.
543 - Audit M_ error codes to ensure they are correct and consistent.
544 - Add variable break characters to lex analyzer.
545 Either a bit mask or a string of chars so that
546 the caller can change the break characters.
547 - Make a single T_BREAK to replace T_COMMA, etc.
548 - Ensure that File daemon and Storage daemon can
549 continue a save if the Director goes down (this
550 is NOT currently the case). Must detect socket error,
551 buffer messages for later.
554 Done: (see kernsdone for more)