From 6cc4b11c5a510a894613cebad403502e571aa27b Mon Sep 17 00:00:00 2001 From: Kern Sibbald Date: Sat, 9 Jan 2010 20:48:41 +0100 Subject: [PATCH] Update kernstodo --- bacula/kernstodo | 125 +++++++++++++---------------------------------- 1 file changed, 34 insertions(+), 91 deletions(-) diff --git a/bacula/kernstodo b/bacula/kernstodo index cc87535549..4300f23613 100644 --- a/bacula/kernstodo +++ b/bacula/kernstodo @@ -37,6 +37,12 @@ Document: Priority: ================ +- Possibly allow SD to spool even if a tape is not mounted. +- How to sync remote offices. +- Windows Bare Metal +- Backup up windows system state +- Complete Job restart +- Look at rsysnc for incremental updates and dedupping - Implement rwlock() for SD that takes why and can_steal to replace existing block/lock mechanism. rlock() would allow multiple readers wlock would allow only one writer. @@ -53,7 +59,6 @@ Priority: similar to what is permitted on the update slots command. - Ensure that the SD re-reads the Media record if the JobFiles does not match -- it may have been updated by another job. -- Look at rsysnc for incremental updates and dedupping - Add MD5 or SHA1 check in SD for data validation - When reserving a device to read, check to see if the Volume is already in use, if so wait. Probably will need to pass the @@ -105,20 +110,14 @@ Priority: for non I/O reasons. - Fix #ifdefing so that smartalloc can be disabled. Check manual -- the default is enabled. -- Change calling sequence to delete_job_id_range() in ua_cmds.c - the preceding strtok() is done inside the subroutine only once. - Dangling softlinks are not restored properly. For example, take a soft link such as src/testprogs/install-sh, which points to /usr/share/autoconf... move the directory to another machine where the file /usr/share/autoconf does not exist, back it up, then try a full restore. It fails. - Softlinks that point to non-existent file are not restored in restore all, but are restored if the file is individually selected. BUG! -- New directive "Delete purged Volumes" - Prune by Job - Prune by Job Level (Full, Differential, Incremental) -- Strict automatic pruning -- Use "./config no-idea no-mdc2 no-rc5" on building OpenSSL for - Win32 to avoid patent problems. - modify pruning to keep a fixed number of versions of a file, if requested. - the cd-command should allow complete paths @@ -139,10 +138,6 @@ Priority: rate = (bytes - last_bytes) / (runtime - last_runtime) === - Add a recursive mark command (rmark) to restore. -- "Minimum Job Interval = nnn" sets minimum interval between Jobs - of the same level and does not permit multiple simultaneous - running of that Job (i.e. lets any previous invocation finish - before doing Interval testing). - Look at simplifying File exclusions. - Scripts - Separate Files and Directories in catalog @@ -155,13 +150,10 @@ Priority: - Implement SDErrors (must return from SD) - Implement continue spooling while despooling. - Remove all install temp files in Win32 PLUGINSDIR. -- Audit retention periods to make sure everything is 64 bit. - No where in restore causes kaboom. - Performance: multiple spool files for a single job. - Performance: despool attributes when despooling data (problem multiplexing Dir connection). -- Make restore use the in-use volume reservation algorithm. -- When Pool specifies Storage command override does not work. - Implement wait_for_sysop() message display in wait_for_device(), which now prints warnings too often. - Ensure that each device in an Autochanger has a different @@ -196,7 +188,6 @@ Priority: and possibly changing the blobs into varchar. - Test Volume compatibility between machine architectures - Encryption documentation -- Bare-metal recovery Windows (todo) Professional Needs: - Migration from other vendors @@ -204,19 +195,13 @@ Professional Needs: - Path change - Filesystem types - Backup conf/exe (all daemons) -- Backup up system state - Detect state change of system (verify) -- Synthetic Full, Diff, Inc (Virtual, Reconstructed) - SD to SD - Novell NSS backup http://www.novell.com/coolsolutions/tools/18952.html - Compliance norms that compare restored code hash code. -- When glibc crash, get address with - info symbol 0x809780c -- How to sync remote offices. - David's priorities Copypools Extract capability (#25) - Continued enhancement of bweb Threshold triggered migration jobs (not currently in list, but will be needed ASAP) Client triggered backups @@ -277,9 +262,6 @@ Projects: writing the daemon message, when Dir dropped to bacula:bacula - Look at zlib 32 => 64 problems. - Fix bextract to restore ACLs, or better yet, use common routines. -- Do we migrate appendable Volumes? -- Print warning message if LANG environment variable does not specify - UTF-8. - New dot commands from Arno. .show device=xxx lists information from one storage device, including devices (I'm not even sure that information exists in the DIR...) @@ -317,7 +299,6 @@ Low priority: http://www.clarkconnect.com/wiki/index.php?title=Modules_-_LAN_Backup/Recovery http://linuxwiki.de/Bacula (in German) -- Possibly allow SD to spool even if a tape is not mounted. - Figure out how to configure query.sql. Suggestion to use m4: == changequote.m4 === changequote(`[',`]')dnl @@ -741,16 +722,6 @@ Notes: in a Job Resource that after this certain job is run, the Volume State should be set to "Volume State = Used", this give more flexibility (IMHO). -6. Localization of Bacula Messages - - Why: - Unfortunatley many,many people I work with don't speak english very well. - So if at least the Reporting messages would be localized then they - would understand that they have to change the tape,etc. etc. - - I volunteer to do the german translations, and if I can convince my wife also - french and Morre (western african language). - 7. OK, this is evil, probably bound to security risks and maybe not possible due to the design of bacula. @@ -775,7 +746,6 @@ Why: http://dev.mysql.com/doc/mysql/en/Full_table.html ; I think the "Installing and Configuring MySQL" chapter should talk a bit about this potential problem, and recommend a solution. -- For Solaris must use POSIX awk. - Want speed of writing to tape while despooling. - Supported autochanger: OS: Linux @@ -791,22 +761,15 @@ Cap: 200GB - Use only shell tools no make in CDROM package. - Include within include does it work? - Implement a Pool of type Cleaning? -- Implement VolReadTime and VolWriteTime in SD -- Modify Backing up Your Database to include a bootstrap file. - Think about making certain database errors fatal. - Look at correcting the time jump in the scheduler for daylight savings time changes. -- Add a "real" timer to network connections. -- Promote to Full = Time period - Check dates entered by user for correctness (month/day/... ranges) - Compress restore Volume listing by date and first file. - Look at patches/bacula_db.b2z postgresql that loops during restore. See Gregory Wright. - Perhaps add read/write programs and/or plugins to FileSets. - How to handle backing up portables ... -- Add some sort of guaranteed Interval for upgrading jobs. -- Can we write the state file after every job terminates? On Win32 - the system crashes and the state file is not updated. - Limit bandwidth Documentation to do: (any release a little bit at a time) @@ -853,8 +816,6 @@ Documentation to do: (any release a little bit at a time) block numbers in btape "test". Possibly adjust in Bacula. - Fix list volumes to output volume retention in some other units, perhaps via a directive. -- Allow Simultaneous Priorities = yes => run up to Max concurrent jobs even - with multiple priorities. - If you use restore replace=never, the directory attributes for non-existent directories will not be restored properly. @@ -966,8 +927,6 @@ Documentation to do: (any release a little bit at a time) correctly for multiple simultaneous jobs. - Implement the Media record flag that indicates that the Volume does disk addressing. -- Implement VolAddr, which is used when Volume is addressed like a disk, - and form it from VolFile and VolBlock. - Fix fast block rejection (stored/read_record.c:118). It passes a null pointer (rec) to try_repositioning(). - Implement RestoreJobRetention? Maybe better "JobRetention" in a Job, @@ -1021,7 +980,6 @@ Documentation to do: (any release a little bit at a time) it's pushing toward heterogeneous systems capability big things: Macintosh file client - macs are an interesting niche, but I fear a server is a rathole working bare iron recovery for windows the option for inc/diff backups not reset on fileset revision a) use both change and inode update time against base time @@ -1031,15 +989,10 @@ Documentation to do: (any release a little bit at a time) an integration guide or how to get at fancy things that one could do with bacula logwatch code for bacula logs (or similar) - linux distro inclusion of bacula (brings good and bad, but necessary) - win2k/XP server capability (icky but you asked) support for Oracle database ?? === - Look at adding SQL server and Exchange support for Windows. -- Create VolAddr for disk files in place of VolFile and VolBlock. This - is needed to properly specify ranges. - Add progress of files/bytes to SD and FD. -- Print warning message if FileId > 4 billion - do a "messages" before the first prompt in Console - Client does not show busy during Estimate command. - Implement Console mtx commands. @@ -1099,7 +1052,6 @@ Documentation to do: (any release a little bit at a time) - Make things like list where a file is saved case independent for Windows. - Implement a Recycle command -- Start working on Base jobs. - From Phil Stracchino: It would probably be a per-client option, and would be called something like, say, "Automatically purge obsoleted jobs". What it @@ -1231,7 +1183,6 @@ Documentation to do: (any release a little bit at a time) See afbackup. - Need something that monitors the JCR queue and times out jobs by asking the deamons where they are. -- Enhance Jmsg code to permit buffering and saving to disk. - Verify from Volume - Need report class for messages. Perhaps report resource where report=group of messages @@ -1321,19 +1272,12 @@ Also, the benefits of this are huge for very large shops, especially with media robots, but are a pain for shops with manual media mounting. -> -> Base jobs sound pretty useful, but I'm not dying for them. - -Nobody is dying for them, but when you see what it does, you will die -without it. - Regards, Jerry Schieffer ============================== Longer term to do: -- Implement FSM (File System Modules). - Audit M_ error codes to ensure they are correct and consistent. - Add variable break characters to lex analyzer. Either a bit mask or a string of chars so that @@ -1347,6 +1291,34 @@ Longer term to do: the same time -- e.g. onsite, offsite. ====================================================== + +==== + Handling removable disks + + From: Karl Cunningham + + My backups are only to hard disk these days, in removable bays. This is my + idea of how a backup to hard disk would work more smoothly. Some of these + things Bacula does already, but I mention them for completeness. If others + have better ways to do this, I'd like to hear about it. + + 1. Accommodate several disks, rotated similar to how tapes are. Identified + by partition volume ID or perhaps by the name of a subdirectory. + 2. Abort & notify the admin if the wrong disk is in the bay. + 3. Write backups to different subdirectories for each machine to be backed + up. + 4. Volumes (files) get created as needed in the proper subdirectory, one + for each backup. + 5. When a disk is recycled, remove or zero all old backup files. This is + important as the disk being recycled may be close to full. This may be + better done manually since the backup files for many machines may be + scattered in many subdirectories. +==== + + +=== Done + +=== Base Jobs design It is somewhat like a Full save becomes an incremental since the Base job (or jobs) plus other non-base files. @@ -1396,35 +1368,6 @@ Need: This would avoid the need to explicitly fetch each File record for the Base job. The Base Job record will be fetched to get the VolSessionId and VolSessionTime. -========================================================= - -==== - Handling removable disks - - From: Karl Cunningham - - My backups are only to hard disk these days, in removable bays. This is my - idea of how a backup to hard disk would work more smoothly. Some of these - things Bacula does already, but I mention them for completeness. If others - have better ways to do this, I'd like to hear about it. - - 1. Accommodate several disks, rotated similar to how tapes are. Identified - by partition volume ID or perhaps by the name of a subdirectory. - 2. Abort & notify the admin if the wrong disk is in the bay. - 3. Write backups to different subdirectories for each machine to be backed - up. - 4. Volumes (files) get created as needed in the proper subdirectory, one - for each backup. - 5. When a disk is recycled, remove or zero all old backup files. This is - important as the disk being recycled may be close to full. This may be - better done manually since the backup files for many machines may be - scattered in many subdirectories. -==== - - -=== Done - -=== - Fix bpipe.c so that it does not modify results pointer. ***FIXME*** calling sequence should be changed. - Fix restore of acls and extended attributes to count ERROR -- 2.39.5