Debut de autochangers.tex.

[bacula/bacula] / bacula / kes-1.39

              Technical notes on version 1.39  
                        Kern Sibbald

General:
01Aug06
kes  Update copyright date in program files, and for the most part
     put it on a #define.
kes  Implement %q in bsnprintf.c apparently I forgot it.
31Jul06
kes  Make disk-changer sed command compatible with FreeBSD.
kes  Make a first cut at a ReleaseNotes and ChangeLog for a 
     beta release.
kes  Make make clean decend into the src/win32 directory.
kes  Fix some #ifdefing so that Solaris and FreeBSD compile 
     sys/stat.h was turned off.
kes  Use suffix editing for new transfer rate messages.
kes  Attempt to come up with a workaround which seems to be an OS
     bug where write() returns EBUSY.  IMO this should not happen.
     It triggered in truncatebug test. The workaround retries using
     a 100 ms wait.
kes  Eliminate a strerror() call in a class method that failed with
     older C++ compilers.
kes  Use rm -rf rather than rmdir to delete the src/win32/release
     directory during make clean.
30Jul06
kes  Make bscan ignore ACL streams.
kes  Update projects files with new Feature Requests.
kes  Generate current English and French manuals and upload
     them to the site.
kes  Update the home page to include the new British/French flags to
     switch between translations. Work done by Alexandre Baron.
kes  Make disk-changer script print an error message if the changer
     directory is not defined.
kes  Create a generic DB routine for getting an int (32/64 bit) from
     the DB.
kes  Add more migration code.
kes  Add a few more files to .cvsignore here and there.
kes  Minor fixes for SD write rate and despooling rate.
kes  Turn off new test code in src/console.c

Version 1.39.18
29Jul06
- Incremented the version number to signify that all of Robert's code
  for Win32 that was in the branch is now integrated into the HEAD,
  and that Eric has submitted code that we hope will provide limited
  backward compatibility with 1.38 file daemons (more testing to be
  done).
- I rationalized a few of the names of the variables (mainly jcr names)
  that are used during migration as keeping three different jcrs at the
  same time clear in one's head is not easy.

Version 1.39.17
28Jul06
- Tweak new runscript feature to work with 1.38.x FDs. 
- Correct crypto.c to fix segfault when restoring an encrypted stream 
  on fd which don't use rsa keys.
- Add yes/no english keywords on localised yes/no questions.
27Jul06
- Several important commits from Robert Nelson for code cleanup and
  Win32 build.
- Modify console.c so that when conio is enabled, it converts \n to
  \n\r before outputting to the console.  Hopefully this will fix
  the problems with expect in Perl that Eric saw.
24Jul06
- Change cats/sql.c to elimate %-*s format, which I think is turned
  off in bsnprintf.
- Add Comment field to llist of a volume.
- Allow true/false in some yes/no questions.
- Implement update volume enable=(on|off|true|false|archived|0|1|2)
- Remove a few /n's when scanning commands from another daemon. This
  permits adding additional fields later.
- Modify dbcheck to handle ctl-d and to delete Log table entries.
- Update README.mingw
22Jul06
- Tweak authentication to work with 1.38.x FDs. 
- Tweak catalog make scripts.
- Fix catalog upgrade scripts so that they work.
- Correct despooling debug code to eliminate race condition.
19Jul06
- Add additional fields as specified by Arno to LocationLog.
- Add comment field to the Media record.
- Add Time field to the Log record.
- Correct migration SQL (thanks to Bill Moran) so that it
  runs with PostgreSQL also.
- Add spooling/despooling info in status output of SD.
17Jul06
- Spend a lot of time integrating mkcdrec with the rescue disk.
- Add VOLMGMT message class for volume management messages (none yet).
- Add CATALOG as a destination.  It goes into the LOG table.
- Implement the Log table in the DB.
- Implement the Location Log table in the DB (for user use).
- At Eric's request add a run_scripts() just after blast_data in
  src/filed/job.c
10Jul06
- Add Enabled column to Location, correct some typos in DB schemas.
- Correct bug I introduced into RunScripts enum.
- Add log table to Catalog
- Purge original job migrated if the migration terminates normally.
- Cleanup purging of files/jobs so that it is done only in a 
  single subroutine.
- Add new VOLMGMT message class.
- Add Catalog message destination (user conf code remains to be written).
09Jul06
- Modify read_record and friends to properly deal with migration      
  needs.
- Update debug code in read_record.    
08Jul06
  ======================= Warning ==========================
  Separate read and write storage in Jobs in the Director. This
  is a major rewrite of some of the low level code and hence has
  a high probability of introducing bugs.
  ==========================================================

- Move the job init code up to *before* the job is put into
  the job queue (resource allocation queue). This permits the
  job to establish whether it will read or write or do both.
- Add name() methods to all the resource classes.
- Implement separate read and write storage resource 
  allocation/deallocation in jobq.c

  ======================= Warning ==========================
  Implemented new method of getting the default Storage from the Media
  record rather than from the MediaType for restore.  As a fall
  back, if no Storage is defined, use the MediaType.  This
  eliminates most all prompts if there are multiple MediaTypes
  used. This is an important and fundamental change.
  ==========================================================

- Add more detail (Storage, Device) to list of volumes printed
  for restore.
- More code in migrate. In particular start multiple jobs if
  migrating a volume.
- Probably overkill, but ensure that the bsr is unique even within a 
  job in FD and SD.
- Rework bsys.c drop() so that it now should work as expected.
- Update a bunch of old copyrights -- particularly in .h files.
- Remove src/lib/bshm.c/h
05Jul06
- Migration fixes
04Jul06
  ======================= Warning ==========================
     All hash codes in the database are now kept in world
     compatible base64 format (no = filling). This means that
     all FileSets will be updated and if you are running
     verify jobs, you must do an InitCatalog.
     Authentication uses the new algorithm, but should be
     backward compatible with 1.38.x
  ===========================================================

- Modify the authentication routines so that the 1.39.15 Director
  always runs with the compatible binary to base64 code (same as
  the rest of the world).  It will however detect if an SD or
  FD is running the old code and if that is the case, will use
  the old algorithm for authentication.  However, all consoles must
  use the compatible algorithm, and all data entered into the database
  (all hash signatures, MD5, SHA1, ..., and all FileSet hashes) will
  use the compatible algorithm.
- Rename the cram_md5 routine names to be slightly more appropriate
  to what they are doing (challenge and respond).
- Robert committed his #ifdef and header cleanup.
30Jun06
- Fix a complier warning in files/backup.c
- Cleanup NOT NULL vs DEFALT 0 in database creation.
- Tweak btape.
- Robert committed his low impact changes.
- I removed a size_t from the jcr.h definition.
- Update the tape regression scripts (still to be tested).
- Add gcc and gcc-c++ requires to srm as suggested by a user.
- Require done or quit to exit from in memory tree restore.
26Jun06
- Write install/uninstall of new manpages. There are now a
  pile of man pages. Some of which need a lot of work.

  ======================= Warning ==========================
     The --mandir ./configure option now points to the top level
     man directory.  The man files will be installed under
     mandir/man8 and mandir/man1 as appropriate.
  ==========================================================

- Add complete text of GPL to LICENSE.
- Implement job report that indicates where Storage and Pool
  came from -- with overrides and Pool storage and NextPool,
  it is all very complicated.
- Create a few common subroutines for backup.c and migrate.c
- Eliminate warning messages from tray-monitor.c
25Jun06
- Apply fix for scheduler for missing unlock_jobs().
- Clean out autoconf caches before rebuilding configure
- Fix the FreeBSD pthreads lib define updated by Dan.
- Add missing semicolon in src/console/console.c
- Add Robert's enhanced version of build-win32-cross-tools
  as well as his patch file.
- Note, the new gcc options are likely to break building of
  wx-console or the tray-monitor ...
24Jun06
- Implement Robert's suggestion to suppress printing compile lines.
- Detect GCC correctly (I hope)
- If using GCC (actually g++) add the following compiler flags
  -fno-strict-aliasing -fno-exceptions -fno-rtti

  ===================== Warning =============================
  Turn on new bsnprintf() code.  This could cause print output
  to look different.
  ===========================================================

- Fix crypto when not using openssl. I previously overlooked this.
- Eliminate crypto type punning problems by eliminating void * and
  using uint8_t * instead.
- Harden authentication failure in FD by single threading errors
  and forcing a 6 second wait.

  ===================== Warning =============================
       Removed  "Accept Any Volume" directive.
  ===========================================================

- Major cleanup and simplification of regress using shell functions
  (more tests to be converted to new format)   
- Add detection of 64 bit Irix as indicated by user.
- Increment catalog database id from 9 to 10.
- Add a few of the new database fields to the various C++
  structures.
- Implement code to fill in the most important new fields (e.g.
  Media Enable).
- Ensure that most of the new fields are in create/get/insert/update.
  More work to be done.
22Jun06
- Update some very old licenses in src/cats.
- Modify the database format for handling Migration jobs:
   Add PriorJobId, RealEndTime to Job table
   Delete MAC table
   Remove Stripe from JobMedia record (not used, wasting space)
   Add ScratchPoolId, RecyclePoolId, Enabled to Media record
   Add Cost to Location table.
- Delete mac_record subroutines.
- Add new table values to create/update/get routines as appropriate.
- Update the update_tables and make_tables scripts.
- Make a first cut in using a union where multiple pointers (actually
  pointers to pointers) are stored.
- Make some changes to base64.c suggested by Robert and others and add
  a small amount of documentation.
- Add some changes suggested by Peter for Solaris (bregex...)
- Make runscript.h always built because it needs to be pulled into
  more places.  In particular its RES was left out of a union.
- Renumber the enum{} list in runscript.h to avoid starting from zero.
  This makes it slightly easier to detect uninitialized variables.
14Jun06
- Remove xpg4 lib from FreeBSD build as it is no longer needed and
  sometimes creates install problems.
- Change a couple of %T in strftime to %H:%M:%S as seen in Robert
  Nelson's code.  More to do.
- Convert a few store_bit to store_bool in filed_conf.c.    
- DVD tweak to block.c as supplied by Uwe Muessel.
04Jun06
- Modify configure.in to check for typeof().
- In findlib/attribs.c use typeof instead of templates if possible.
01Jun06
- Implement partial error messages for src/filed/acl.c
- Fix return code to fail when doing update barcodes and
  Pool resource is not found. This previously caused Volumes
  to be labeled as cleaning tapes.
- Small updates to projects.
27May06
- Add Eric Bollengier patch for new RunScript directive. It breaks
  compatibility between dird and fd.
26May06
- Prevent DVD code from rewriting label if the device cannot be
  opened read/write.
- Used __GNUC__ to detect GNU g++ as suggested by John Goerzen to
  fix Debian build bug.
- Fix Dir/SD run race in migrate.c, verify.c, and restore.c
- Integrate manpages contributed by Jose Luis.
- Update projects file.
- Add manpages Makefile.in to configure.in
- Remove installation of bacula.8 in scripts directory.
24May06
- Implement patch submitted by cesarb in bug #606 to implement O_NOATIME
  support.
    O_NOATIME is a open() flag which makes it possible to read a file without
    updating the inode atime (and also without the inode ctime update which
    happens if you try to set the atime back to its previous value). It also
    prevents a race condition when two programs are reading the same file, but
    only one does not want to change the atime. It's most useful for backup
    programs and file integrity checkers (and bacula can fit on both
    categories).

    Recent versions of the Linux kernel and glibc have support for it (the
    glibc support being mostly copying the O_NOATIME definition to
    bits/fcntl.h). If there's no support for it on the kernel, trying to use
    it does nothing (since the kernel ignores unknown flags).

    If the kernel has support for it, trying to use it either works, fails
    silently (mostly in remote filesystems), or returns errno=EPERM (if you
    are not either the owner of the file or root). A simple way to prevent the
    failure is to open the file without the flag and set it later with
    fcntl(F_SETFL), ignoring any EPERM errors.
- Applied patch posted by Jaime Ventura to bug #570 to correct failure
  of restarted jobs to complete (due to a destroyed pthreads conditional
  variable used by the message thread).
- Fixed bug #619 where Bacula would not restart jobs with MaxRestartTimes
  set to zero. 
- Apply patch from John Goerzen bug #611 to fix bad manual links in the code.
- Apply patch from Rudolf Cejka bug #614 to removed trailing
  colons in query.sql file.
- Apply patch from Rudolf Cejka bug #613 to correct prunning of files
  not to create orphans.
- Apply patch from Rudolf Cejka bug #617 to use mtime instead of ctime
  in restore long listing.
- Apply patch from Rudolf Cejka bug #609 to use MarkId in verify.c instead
  of incorrect MarkedId.
- Apply patch from adioso bug #616 to correct text in manual (replace
  Director with File daemon).
- Rework a few of the zlib changes so that they build properly.

21May06
- Move DIR "run" command to SD before starting the message thread
  as suggested by Cristopher Hull to avoid a race deadlock from
  two threads using the bsock structure.
- Modify LICENSE to correct some problems pointed out by Debian.
05May06
- Correct EOF with no \n lex.c problem.
- Tweak compat.h compat.cpp and merge with apcupsd
- Add additional INFO messages if autochanger cannot be used.

02May06
- Simplify Win32 Makefile
- Correct count of buffers/bytes used by smartall.c
- Updated compat.h after porting apcupsd to MinGW.
01May06
- Work on getting wx-console building on MinGW. wxWidgets now builds
  started adding Makefile ...
- Moved MinGW library objects to src/win32/lib to reduce clutter.
30Apr06
- Reloading a bad configuration file doesn't kill director any more.
  Thanks to fix from Eric Bollengier.
29Apr06
- Fix problem of accents with new Win32 code.
- Integrate Howard's VSS patch. Tweak it a bit. VSS now
  works in the MinGW build with the exception that there
  is a problem with accented characters -- i.e. there is
  some mapping problem with wide characters.
- The code no longer compiles with Microsoft VC++.
28Apr06
- Start implementing Christopher's St.Bernard code.
- Add Christopher's mods for opening files.
- Strip \r \n from Win32 error messages (Christopher)
- Add more info about Win32 system if unknown (Christopher)
- Use bstrn(cpy, cat) routines to avoid overrun in compat.cpp
- Fix a number of incorrect strings marked for translation, when
  they should not be (e.g. commands).
- Fix StartTime bug reported for ClientRunBeforeJob and RunBeforeJob
  Patches supplied by user in bugs #608 and #599.
- Use most recent of st_ctime and st_mtime in restore tree DIR
  listing. This fixes some problems with Win32 printing incorrect
  values.
- Correct the clock shift comm time calculation between the DIR
  and the FD. It was added rather than subtracted.
- Strip all backslashes in filenames to be restored on Win32
  machines -- the names should all be in Unix format, and if
  there are any backslashes it is most likely due to an improper
  FileSet definition, and the files will not otherwise be 
  restorable.
- Remove lib/regex.c (replaced by bregex.c).
- Delete src/win32/License.txt
- Modify installer to install LICENSE
26Apr06
- Fix bug in build-win32-cross-tools script reported by Howard
- Implement cross compiled bconsole
25Apr06
- Fix barcode test, eliminate BOOL (doesn't exist on Linux).
- Write first cut of README.mingw32
- Add back ua_label barcode fix from Rufolf Cejka.
- Integrate the majority of the Mingw cross-tools submission
  made by Howard Thomson. Everything compiles, with zlib, openssl,
  and VSS turned off. Linking needs a pthreads library ...
23Apr06
- Add 'Dir Status' button to the gnome console.
- More work on migration.
- Restore non-compatible base64 coding to permit compatibility.
- Display heap stats in Storage daemon without debug level.
22Apr06
- Integrate most of the MinGW changes -- more to do.
21Apr06
- Implement using pg_config for finding PostgreSQL files.
  Fixes bug #600. Patch supplied by user.
- Remove -t option from mktemp in mtx_changer.in and use
  working directory. Fixes bug #578.
- Update job start time after the any run before job so that
  files created by the script are only backed up once. Fixes
  bug #599.
- Strip trailing newline only from filenames entered in
  the restore command when reading a file. This permits
  the user to enter filenames with trailing spaces. Fixes
  bug #549. The user supplied a patch that I modified slightly.
- Use the most recent time (st_mtime, st_ctime) in the dir
  command in restore. This gives the user a better idea of what
  the newest file really is. This fixes bug #574. The fix
  was suggested by the user.
- Implement a compatible version of base64. This permits external
  programs to duplicate Bacula's base64 algorithm using standard
  routines. This fixes bugs #296, and 565. Patch submitted by   
  author of bug #565.  
  ================= Note ========================
  Previous Signatures stored in the database are no longer
  compatible with this. The main downside is for Verify jobs,
  and doing an InitCatalog run will fix the problem. Also, the
  authentication between the deamons is changed, so all daemons
  must be simultaneously upgraded.
  ==============================================
  If you don't like this fix, set:
    const bool compatible = true;
  to
    const bool compatible = false;
  in src/lib/base64.c
20Apr06
- Ensure that DB signature is never NULL.
- Ensure that DB table names are not translated.
- Fix scheduler to handle time skew (eg daylight savings).
- Fix scheduler to use lock_jobs() to avoid most problems
  with reload. Window is now milliseconds.
19Apr06
- Apply patch from Christopher Hull
  - Allow multiple connections to database with different
    parameters.
  - Invalidate the scheduler when doing a reload. Fixes seg
    fault, but still 60 second window.
  - Additional info in Reschedule message.
  - Use set_jcr_job_status() everywhere to prevent loss of
    cancel, error.
  - Display peer IP in FD if error from connecting DIR.
  - Don't increment file count for DIRBEGIN.
  - Replace illegal characters in Win32 filename by _.
  - Add SE_CREATE_PERMANENT_NAME privilege in Win32.
  - Hash hard link filenames rather than linked list.
  - Fix for security failure in chdir on Win32.
  - Add CreateDirectoryA/W win32 API entry points.
- Add /silent option to Win32 FD for Install/Remove service.
- Always print Heap statistics in FD.
18Apr06
- Remove the -f option from the chown in Makefile.in for more
  portability.
- Change setting the group in Makefile.in to use chgrp for
  more portability.
- Implement a write_store and read_store to replace
  dirstore in reserve.c
- Implement a Bacula read/write lock for Python rather
  than using the Python lock to avoid recursive problems.
- Correct the uninstall directory names in filed/Makefile.in
  as reported by a user.
17Apr06
- Correct some problems with database creation (new tables).
- Replace a bunch of old 0x%x by %p.
- Get first cut of Migration with Job selection working.
16Apr06
- Change store_bit() to store_bool() for the Spooling in 
  dird_conf.c -- bug reported by Robert Nelson.
15Apr06
- Correct Makefile bug found by Dan Langille.
14Apr06
- Correct Makefile for Solaris /bin/sh
- Correct mtx-changer.in for Solaris /bin/sh
- Abort if a conf resource does not have a Name =
12Apr06
- Change the name of the regex program to bregex.
- Add the bwild program to the tools directory. It is similar
  to the bregex program.
- Implement create bregex.h and bregex.c in src/lib from the
  Python regexp program.  
- Use the new bregex.c to implement Regex expressions on Win32.
11Apr06
- More work on migration.
- Implement wild program in tools directory for testing
  wild-cards. Almost identical to the regex program.
- Up port VSS single thread locking code.
- Replace N_(..) by NT_(...) to inhibit translation of
  commands.
- Modify Makefile to change the permissions on Working Directory
  to 770 if the directory is created.
- Do not fail the Makefile if changing the permissions or 
  owner/group on WorkingDir fails.
- Remove early selection of Scratch Volumes in the recycling
  algorithm.
- Correct the old recycling algorithm so that Scratch Volumes
  are selected when looking for a Volume in the changer.
- Correct a typo in the Verify SQL reported by Joe Park.
10Apr06
- Remove automatic case folding on Windows FDs. You must
  explictly use the 'Ignore Case = yes' option.
- Remove the code added to 1.38.6 and 1.38.7 that pulls a
  scratch volume in an Autochanger early in the 'recycling'
  algorithm.  
09Apr06
- Make weof() and clrerror() methods of class DEVICE.
08Apr06
- Tweak license to include Microsoft restrictions.
- Move mysql.reconnect to after real_connect().  Thanks to
  Frank Sweetser for the patch.
- Disallow a backslash in a File = directive (Windows junk)
  unless the string is quoted.                     
- Apply Eric's patch to ua_label.c so that daemon protocol
  is not translated.
- Add NT_ definition for strings that should not be translated.
- Apply NT_() to ua_label.c
- Remove timed wait for VSS on Win2K3 as it is not yet
  implemented.
- Correct bacula.in script to reference bacula-ctl-xx in the
  sysconfig directory rather than the bin directory.
26Mar06
- Fix a long standing bug in the bacula start/stop scripts.
- Attempt to add the new bacula-ctl-* files to the rpm.
- Switch to using typeof() for list traversing to avoid
  as many FC5 g++ compiler warnings as possible.
25Mar06
- Split the bacula start/start script into four files:
   bacula         -- starts and stops calling other scripts
   bacula-ctl-dir -- starts/stops the director
   bacula-ctl-fd  -- starts/stops the File daemon
   bacula-ctl-sd  -- starts/stops the Storage daemon
24Mar06
- Create datestyle fix for PostgreSQL. Fixes bug #574.
- Correct editing of JobId from int to int64 in fd_cmds.c
- Eliminate FileSet name race with bash_spaces() and multiple
  threads by bashing in a local.
- Fix error return from 'use storage' to print a correct error
  message rather than nothing.
- Correct false re-read last block error message when two jobs 
  are simultaneously writing at the end of a tape.
- Simplify exit conditions in the reserve.c code to avoid  
  possible non-release of reservation_lock().
- Suffle lock order in reserve to avoid deadlock between
  reservation lock and device mutex.
21Mar06
- Initialize jcr mutex before first use. Thanks to Thorsten for
  tracking this down for me !!!! as it broke the Win32 build.
20Mar06
- Integrate addition of line count limitation to bsmtp -l from
  Sebastian Stark <stark at tuebingen.mpg.de>
17Mar06
- Implement regex test program in tools directory.
- Attempt to fix time problem with bsmtp with foreign langs.
- Add strip_trailing_newline() submitted by user.
- Implement regex matching in migrate.c
16Mar06
- Fix bug #537 to allow arbitrary time to mount a volume for
  restore, if polling is turned on.     
- If dir_user or dir-group is specified in ./configure apply it to
  the working-dir. Fixes bug #533.
- If rescheduling a job cancel the previous incarnation with the SD.
  Fixes bugs #566 and 557.
- Fix bug #567 do_message() definition type conflict.

14Mar06
- Add more jcr methods and make mutex and use_count private.
- Create lock/unlock methods for jcr.
- Fix PostgreSQL bug doing sql_data_seeek() by explicitly reading
  records to get to seek position.
- Integrate patch from bug #561 to correct conio.c signal definitions.
- Fix Rescheduling failed Jobs. Ensure that SD message thread 
  terminates correctly by doing pthread_kill(). Do not destroy
  SD cond wait variable between executions of the job. Use local
  mutex for cond variable to avoid blocking jcr chain. Fix poor 
  use of jcr use count in jobq.c for restarted jobs.
- Fix obsolete usage of foreach_dlist() to use foreach_jcr() in
  lib/jcr.c -- prevents locking the jcr chaing.
- Apply patch from bug #564, which corrects listing volumes with
  multiple autochangers. Apply same fix to next volume list.
- Fix bug #562 where restore bootstrap file is not unique.
- More details in implementing David's migration syntax proposal.
- Save and restore dcr when swapping drives so that if we have
  a write dcr it is not lost.
- Use new routine lock_reservations() to lock the reservations
  system, and call it while looking for a volume in askdir.c.
  This could possibly fix bug #543.
- Stop SD command loop if job is canceled.

08Mar06
- Remove old code from findlib/create_file.c
- Rename mac.c migrate.c
- Add user friendly display of VolBytes in job report.
- Rename target... to previous... to make it a bit easier to
  understand.
- Add selection type and selection pattern to Migration (idea
  given by David Boyes). 

04Mar06
- The po files should now be current.
- Fix new sql_use_result() code to properly release the
  buffers in all cases.
- Use the keyword ujobid to mean the unique job id; job or jobname
  to mean the Job name given on the Name directive, and jobid to
  be the numeric (non-unique) job id.
- Allow listing by any of the above.
- Add the user friendly job report code for reporting job elapsed time
  and rates with suffexes from John Kodis <kodis at comcast.net>.
- Add Priority and JobLevel as Python settable items.
- Use TEMPORARY table creation where the table is created by
  Bacula.
- Add new code submitted by Eric for waiting on specific jobid.
- Add ACL checking for the dot commands.
- Fix restore of writable FIFOs.
- Fix a bug in bpipe where the string was freed too early.
27Feb06
- Modify the Python class examples to inherit object -- new way
  of defining classes. Patch from Felix Schwarz.
- Implement jobuid to replace old usage of job in keywords as
  suggested by Eric Bollengier.
- Apply patch for enhancing wait from Eric Bollengier. On can now:
   wait  (wait for all jobs to stop)
   wait jobid=nn
   wait jobuid=unique id
   wait job=job-name
- Implement write variables for Python to set Priority (anytime), and
  Job Level, only during JobInit event.
26Feb06
- Fix the block listing bug pointed out by Arno.
- Update the po files at Eric's request.
24Feb06
- Fix Maximum Changer Wait, Maximum Open Wait, Maximum Rewind Wait to 
  accept time qualifiers.
- Make catalog respect ACL.
- Add recycle count to Media record.

Changes to 1.39.6-beta1 24Feb04
23Feb06
- Add Rudolf Cejka's new rc-chio-changer.
- Implement pulling Volume from Scratch Pool if the
  Volume is in the autochanger.
- Implement additional command arguments for update Volume.

Changes to 1.39.5 
22Feb06
- Back port changes to 1.38.5
- Fix recycle SQL for StorageId.
- Fix misplaced quote in mtx-changer script.
20Feb06
- Note. Your database must be updated, or you must create 
  a new database. I have not yet incremented the database level.
- Add Location table. 
- Add LocationId, DeviceId, and MediaTypeId to Media record.
18Feb06
- Implement create/get mac record in database for adding extended
  Migration data to the job record.
- Add new MAC table to update/make database scripts.
- Return Storage name used when getting VolumeNames for a job.
- Change bsr file keyword Storage to Device, which is more accurate.
- Ensure that Mac records are pruned/purged.
- Tweak SD tools to deal with changing media type.
- Integrate more dev.c subroutines as methods (e.g. strerror, bsr, ...)
- Pass pointer to dcr pointer to acquire_device_for_read() so
  that the subroutine can switch devices, and hence dcrs.
- Modify the multiple MediaType read code to re-use the same
  dcr when switching devices. This makes the code much more
  robust.
- Integrate patch from Karl Hakimian that reads JobIds, FileIndexes
  from a table for restore.
- Add Storage name to VolParams, but it really should be Device.
14Feb06
- Add disk-changer to scripts directory + configure/Makefile
- Eliminate PoolId from jcr -- it is in jcr->jr.PoolId
- Implement store_bit scanner to replace store_yesno.  Mostly done.
- Implement new store_bool that stores in a bool. 
- Add true/false to yes/no conf directives.
- Make first cut at changing appropriate store_yesno to store_bool.
- Complete implementation of Pool storage devices.
- Move starting clones to job.c
- Move create_restore_bootstrap_file() to job.c
- Make copy_storage() more general to be able to handle
  Pool storage.
- Cleanup a lot of migration code for manual running, including
  using Pool storage.
- Move getting a scratch Volume into a subroutine.
- Make all places a Volume that is added to a pool to 
  respect max vols.
- Fix bug in autochanger recycle code (improper edit 64 bit).
- Fix segfault in restore command when no value specified.
- Start adding code to handle multiple MediaTypes in restore.
- Eliminate race condition in getting Volume name for
  two drive autochanger.
- More debug code in autochanger.
- Add storage keyword to bootstrap file, add parsing.
- Move slot in bsr file into Volume record as there will be
  a different slot for each Volume.
- Create reserve.h
07Feb06
- Implement Pool storage overrides.
06Feb06
- Implement first cut of Migration.
- Implement mysql_use_result() from patch by Karl Hakimian.
  This reduces significantly the memory consumption during
  the restore tree building, and hence runs faster too.
- Implement StorageId patch supplied by user (reggie) in bug
  #536.  This should permit Bacula to work correctly with two
  autochangers.
- Implement Job listing variations suggested by a user.
- Move updating bootstrap code in backup.c to subroutine
  update_bootstrap_file().
- Add new job status elapsed time and bytes written user
  friendly job report output patch sent by John Kodis
  <kodis at comcast.ne>.
- Implement a storage list in Pools.
- Separate out setup_job() code from run_job().
- Get migration working -- lots of changes in mac.c in both
  DIR and SD.
- Apply patch from user (Eric Bollengier I think) that fixes a  
  DIR crash when no arguments are supplied to a dot command.
- Fix typo (strcpy->strcmp) in ua_prune.c as reported by Martin.
- Fix command arg name->volume in label command of gnome-console.
- Fix SD acquire.c to release correct DCR by explicitly testing
  on the dcr address rather than trying to devine if it is a read
  or write dcr.  This failed in error conditions when the device was
  not fully setup.
 
30Jan06
- Apply user supplied patch for more readable rate output
  in job report.
- Continue implementing migration.
- Implement support for removable filesystems in SD.
- Ensure that btraceback scripts can be read by anyone.
- Replace dvd-freespace and dvd-writepart by dvd-handler.
- Correct bug where canceling restore before the FD contacts
  the SD causes the drive to be left in read mode.
- Move ofline_or_rewind into DEVICE::close().
- Eliminate close_device.
- Convert several dev subroutines to methods (e.g. bsf,
  eod, ...)
- Eliminate force_close_device().
- Implement Device Type directive in Device resource that
  can have values File, Tape, Fifo, DVD, or Prog.
- Add has_cap() method to Device.
Changes to 1.39.4
17Jan06
- Add patch from bug #527 to allow RedHat user to specify
  options/user/group for starting each daemon in      
  /etc/sysconf/bacula.
16Jan06
- Add two new queries to query.sql provided by Arno. One
  list volumes known to the Storage device, and the other
  lists volumes possibly needing replacement (error, ...).
15Jan06
- Add periodic (every 24 hours) garbage collection of memory 
  pool by releasing free buffers.
14Jan06
- Correct bug counting sized (for display only) in smartall.c
- Print FD mempool stats if debug > 0 rather than 5.
12Jan06
- Make db_lock() mutex error fail the job rather than abort
  Bacula.  Canceling the job caused the mutex to fail.
- Correct bug in alist.c that re-allocated the list if the
  number of items goes to zero.
- Move the reservation system thread locking to the top level
  so that one job at a time tries all possible drives before
  waiting.
- Implement a reservation 'fail' message queue that is built         
  and destroyed on each pass through the reservation system.
  These messages are displayed in a 'Jobs waiting to reserve
  a drive' list during a 'status storage='.  Note, multiple
  messages will generally print for each JobId because they
  represent the different problems with either the same drive
  or different drives.  If this output proves too confusing
  of voluminous, I will display it only when debug level 1
  or greater is enabled in the SD.
11Jan06
- Add enable/disable job=<job-name>.  This command prevents
  the specified job from being scheduled. Even when disabled,
  the job can be manually started from the console.
- During 'update slots' clear all InChanger flags where the
  StorageId is zero (old Media records).

Beta release 1.38.4:
09Jan06
- Fix autochanger code to strip leading spaces from returned
  slots number. Remove bc from chio-changer.
- Back port a bit of 1.39 crypto code to reduce diffs.
- Fix first call to autochanger that missed close()ing the
  drive. Put close() just before each run_program().  Fixes
  Arno's changer bug.
07Jan06
- Add PoolId to Job record when updating it at job start time.
06Jan06
- Pull in more code from 1.39 so that there are fewer file
  differences (the new ua_dotcmds.c, base64.h, crypto.h
  hmac.c jcr.c (dird and lib) lib.h md5.h parse_conf.c 
  util.c. Aside from ua_dotcmds.c these are mostly crypto
  upgrades.
- Implement new method of walking the jcr chain. The
  incr/dec of the use_count is done within the walking
  routines.  This should prevent a jcr from being freed
  from under the walk routines.


Changes to 1.39.3:
04Jan06
- Start implementing Verify list output.
- Move the suitable_drive flag to a better place to prevent
  premature termination of the reservation if all drives
  are busy -- should fix Arno's diff/inc pool failures.
26Dec05
- Add mutex to single thread VSS code in Win32.
22Dec05
- Simplify code in askdir.c that waits for creating an appendable
  volume so that it can handle multiple returns from the wait
  code.
- Modify the wait code to permit multiple returns.
- Return a zero when "autochanger drives" is called and
  it is not an autochanger.
- Make rewind_dev() a method taking a DCR as an argument.
  This permits closing and reopening the drive if the
  rewind fails as happens if the drive was loaded while the
  file descriptor was open. This refreshes the file descriptor.
- Remove the ST_OPENED flag and always rely on fd < 0 for knowing
  if the device is open or not.  This should eliminate
  Arnos problem.
- Return error if reserve cannot find at least one suitable device.
- Make wait_for_sysop() return correct state information.
- Fix Win32 state file problem. write was not using compat
  code. This should fix bug #500.
21Dec05
- Modify gui on command to set only GUI mode and not batch.
- Modify .messages command to always print messages regardless
  of the mode.
- If GUI mode is on, suppress automatic printing of 
  You have messages. 
- Delete old bnet packet code.
- Ignore new BNET_START_SELECT and BNET_END_SELECT signals in
  wx-console. -- not implemented because bconsole must be updated.
- Modify restore command in wx-console to set gui on and to use
  only .messages instead of messages.  Hopefully this fixes bug
  #514.
- Fix seg fault in exit of acquire when canceling a job --
  reported by Wolfgang Denk
- Pull in latest reservation system changes from 1.38
- Make .messages command always print messages regardless
  of the automessages flag.
17Dec05
- Fix seg fault if user labels a drive directory bug #513
- Remove quotes around Version as it breaks things.
16Dec05
- Merge in Aleksandar Milivojevic's mods to the spec file.
- Apply sparse code fix for raw drives and fifos. Bug 506
- Thorsten fixed Unicode cd problem with wx-console bug 505.
14Dec05
- Correct reservation system to do a last ditch try
  for any mounted volume, then anyone anywhere.
- Add quotes around table Version because of
  error in MySQL 4.1.15 -- bug report submitted.
- Correct some minor problems with btape in the fill
  command.
- Updates to ssh-tunnel from Joshua Kugler.
- Added a report.pl program from Jonas Bjorklund.            
- Simplify the O_NONBLOCK open() code for tape drives,
  and always open nonblocking.
- Do not wait for open() if EIO returned (shouldn't happen).
- Eliminate 3 argument to tape open().
- Correct the slot # edited in the 3995 Bad autochanger unload
  message.
- With -S on bscan (show progress) do not divide by zero.
13Dec05
- Make cancel pthread_cond_signal() pthread_cond_broadcast().
- When dcr is freed, also broadcast dev->wait_next_vol signal.
- Remove unused code in wait_for_device.  
- Make wait_for_device() always return after 60 seconds of wait.

Changes to 1.39.2:
13Dec05
- Add stubs for non-crypto build.
12Dec05
- Use localhost if no network configured
11Dec05
- Eliminated duplicate MaxVolBytes in cat update -- bug 509.
- Remove debug print.
- Add bail_out in error during state file reading.
10Dec05
- Merge changes made to 1.38.3 into HEAD
- Add stubs for pygtk-console code
- Create Makefile.in for pygtk-console code
09Dec05
- Merge updates into 1.38 branch
- Update specs to include mysql4 define.
- Fix when attributes are sent, must be after binit().
- Stop read_record() if status not ok in second loop.
- Return rec->FileIndex in dcr->VolLastIndex for normal
  and partial records in read_record().  This allows bscan
  to get FileIndex at EOT correct.
- Fix butil.c to correctly set dcr -- fixes seg fault in bls.
08Dec05
- Fix Win32 built to work with new crypto code.
- Apply patch supplied by user (slightly modified) to fix
  correct detection of holes in block devices and FIFOs. 
  Bug # 506.
- Apply patch supplied by user (slightly modified) 
  to fix SD hang with multiple pools and bad client
  IP. Fixes bug # 508.
07Dec05
- Add nagios plugin to the examples directory. Submitted by
  Christian Masopust.
- Remove warning message about multiple saves of hardlinked files
  from find_one.c as it can generate too many warning messages.
- Modify most restore error messages to be queued so that they
  appear at the end of the job rather than mixted with the restore
  listing where they could be "lost".
06Dec05
- Reset timeout values before select() per patch from 
  Frank Sweetser for problems with non-blocking sockets.
- Unlink the state file if either reading or writing it gets
  errors.  Hopefully this will fix Win32 exit problems.
- Add sanity check in append.c to ensure that dcr is not NULL.
  This can happen if multiple drive autochanger SCSI control
  channel and drive indicies do not correspond.
05Dec05
- Get next volume from Scratch pool before creating a volume.
- Set new Pool defaults in Vol when moved from Scratch Pool.
- Remove argument from create_bacula_database for SQLite as it
  caused an error.
- Add back index code so that two drive autochangers can get
  a second tape.
- Change a bunch of debug levels to aid debugging autochangers.
- Fix reservation so that mutexes are properly applied.
- Rework reservation algorithm so that two drives can be used
  at the same time.
04Dec05
- Landon merged his data encription changes into the HEAD
- Apply days keyword patch from Alexander.Bergolth at wu-wien.ac.at 
  If this patch is applied, the number of days can be specified with
  "list nextvol days=xx"
  or
  "status dir days=xx"
  My use case is to be able to preview the next scheduled job (and the 
  next tape to be used) on fridays if there are no scheduled jobs during 
  the weekend.
Changes to 1.39.1:
03Dec05
- Fix font code in gnome2 console user patch. Fixes bug #501.
- Fix malformatted bnet error message that caused seg fault
  fixes bug 502
- Applied user patch to improve README.vc8 in src/win32.
29Nov05
- Add Migrate, Copy, Archive Job types (some where there)
- Correct some more editing of JobId's (for 64 bit compatibility).
- Ensure that StorageId is stored in Media record when ever possible.
- Add Migration Job to Job.
- Add Migration Time, Migration High Bytes, Migration Low Bytes
  Next Pool to Pool resource.
- Add more code to mac.c (migration archive copy).
- Change Start Storage daemon job to require read and write storage
  pointers.
- Pass read storage data to SD as well as write storage data.
- Remove old code from winservice.cpp
- Break on error in scan.
- Fix typo in signal.c
- Separate read/write DCR in SD.  Add jcr->read_dcr.
- Cleanup how find_device() works.
- Add read output to Status in SD.
Changes to 1.39.0:
23Nov05
- Add red-black btree routines
21Nov05
- Remove abs() in bfile.c so that it compiles on Solaris. 
  Bug #491.
20Nov05
- Fix crash in tray-monitor when daemon disconnects. Bug #479.
- Fix bnet-server bug found on OpenBSD. Bug #486
- Fix cancel failure bug. Bug #481
- Fix failure when Pool name has spaces. Bug #487   
- Fix SD crash in autochanger code. Mutex failure. Bug #488
- Fix a couple of free()s in src/filed/acl.c
- Fix memory overrun in bfile.c in building OS X resource
  fork filename. Bug #489 
- Add Pool name to SD status output.
14Nov05
- Apply SunOS patch for ACLs submitted by David Duchscher.                  
- Make sure to set storage before trying to set drive.
- Add bacula_mail_summary.sh to examples directory. It makes
  a single email summary of any number of jobs. Submitted
  by Adrew J. Millar.
- Make sure when we do a mount to unblock the device even
  if the drive could not be opened.  
13Nov05
- Remove the USE_WIN32STREAMEXTRACTION #defines (always on)
  and correct a few minor problems to make it build on Linux.
10Nov05
- Remove delete of CVS from all Makefiles
- Fix seg fault when clicking on Add button in wx-console
  restore panel.  Bug #470.
- Fix copyright date and URL typo -- bug #468.
- Change autostart install for FreeBSD to look for rc.conf  
  rather than rc.local as suggested fix for bug #466.
- Apply patch supplied by Eric Bollengier to fix PostgreSQL    
  grant on status. Bug #465
- Apply patch supplied by Eric Bollengier to fix PostgreSQL
  update script. Bug #464
- Tweak #ifdefing a bit in new Win32 stream code.
- Fix #ifdeffing for FD_NO_SEND_TEST.
- Add documentation of performance #defines