--- On Wed, 8/6/08, Kern Sibbald <[EMAIL PROTECTED]> wrote:
> From: Kern Sibbald <[EMAIL PROTECTED]> > Subject: Re: [Bacula-devel] Can bacula change the ctime on files during a > backup? > To: bacula-devel@lists.sourceforge.net, [EMAIL PROTECTED] > Cc: "baculausers" <[EMAIL PROTECTED]> > Date: Wednesday, August 6, 2008, 12:30 PM > On Wednesday 06 August 2008 18:53:10 Hemant Shah wrote: > > --- On Tue, 7/22/08, Hemant Shah > <[EMAIL PROTECTED]> wrote: > > > From: Hemant Shah <[EMAIL PROTECTED]> > > > Subject: Re: [Bacula-devel] Can bacula change the > ctime on files during a > > > backup? To: bacula-devel@lists.sourceforge.net > > > Date: Tuesday, July 22, 2008, 3:27 PM > > > --- On Tue, 7/22/08, Kern Sibbald > <[EMAIL PROTECTED]> > > > > > > wrote: > > > > From: Kern Sibbald <[EMAIL PROTECTED]> > > > > Subject: Re: [Bacula-devel] Can bacula > change the > > > > > > ctime on files during a backup? > > > > > > > To: bacula-devel@lists.sourceforge.net > > > > Date: Tuesday, July 22, 2008, 1:25 PM > > > > > > > > On Tuesday 22 July 2008 18:37:14 John > Drescher wrote: > > > > > There is a long thread in the users > list that a > > > > > > user > > > > > > > is getting nearly > > > > > > > > > full backups for his incrementals with > > > > > > bacula-2.4.X > > > > > > > and it was > > > > > > > > > discovered that the reason was that the > ctime on > > > > > > files > > > > > > > was changing > > > > > > > > > between backups. He believes that > bacula is doing > > > > > > this > > > > > > > but I am not so > > > > > > > > > sure. > > > > > > > > Almost anything is possible, but there have > been no > > > > > > changes > > > > > > > in the way Bacula > > > > does backups for quite a few versions, so I > doubt that > > > > Bacula is doing it. > > > > Typically it is virus protection software. > > > > > > > > If he can provide proof positive, i.e. > disable all > > > > > > software > > > > > > > other than Bacula > > > > do a backup and show that file times change, > then that > > > > might be worth looking > > > > at. Also, if it is one user only one user > having the > > > > problem, it points the > > > > finger elsewhere. Finally, I am running > 2.4.1 here > > > > > > and > > > > > > > have been since > > > > before it was released, and I am seeing > normal > > > > > > Incremental > > > > > > > backups. > > > > > > > > Thanks for mentioning this ... I'll > take a look > > > > > > at the > > > > > > > thread. > > > > > > > > Best regards, > > > > > > > > Kern > > > > > > > ------------------------------------------------------------------------- > > > > > > > This SF.Net email is sponsored by the Moblin > Your Move > > > > Developer's challenge > > > > Build the coolest Linux based applications > with Moblin > > > > > > SDK > > > > > > > & win great prizes > > > > Grand prize is a trip for two to an Open > Source event > > > > anywhere in the world > > > > > > > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > > > > > > > > _______________________________________________ > > > > Bacula-devel mailing list > > > > Bacula-devel@lists.sourceforge.net > > > > > > > https://lists.sourceforge.net/lists/listinfo/bacula-devel > > > > > > > > > I upgraded the server to 2.4.1. I will run > another full > > > cycle starting today. I have also written a > cronjob that > > > will run every hour and stat few files, some on > local disk > > > and some on NFS filesystems. I am having problem > on bacula > > > server so I will be running the script on bacula > server > > > machine which only runs bacula, and postgresql. > > > > > > > > > Will see if I get problem with 2.4.1. > > > > > > Hemant Shah > > > E-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------- > > > This SF.Net email is sponsored by the Moblin Your > Move > > > Developer's challenge > > > Build the coolest Linux based applications with > Moblin SDK > > > & win great prizes > > > Grand prize is a trip for two to an Open Source > event > > > anywhere in the world > > > > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > > > _______________________________________________ > > > Bacula-devel mailing list > > > Bacula-devel@lists.sourceforge.net > > > > https://lists.sourceforge.net/lists/listinfo/bacula-devel > > > > Folks, > > > > It did it again. Last weekend was another start of > the month full backup, > > then it was time to to the incremental backup, bacula > did a full or almost > > full backup again, only on some clients, and few were > not same as last > > time. > > > > Here are the clients that had problem: > > > > -rw-r----- 1 root root 1.9G 2008-08-02 16:07 > Full-lidp5-2008-08-02-15:46:51 > > -rw-r----- 1 root root 1.8G 2008-08-03 22:23 > Incr-lidp5-2008-08-03-22:03:06 > > -rw-r----- 1 root root 3.7M 2008-08-04 22:02 > Incr-lidp5-2008-08-04-22:02:33 > > -rw-r----- 1 root root 3.0M 2008-08-05 22:03 > Incr-lidp5-2008-08-05-22:03:05 > > > > > > -rw-r----- 1 root root 19G 2008-08-02 17:39 > Full-lidp8-2008-08-02-15:48:08 > > -rw-r----- 1 root root 19G 2008-08-04 00:05 > Incr-lidp8-2008-08-03-22:05:13 > > -rw-r----- 1 root root 45M 2008-08-04 22:19 > Incr-lidp8-2008-08-04-22:02:58 > > -rw-r----- 1 root root 15M 2008-08-05 22:20 > Incr-lidp8-2008-08-05-22:03:29 > > > > > > -rw-r----- 1 root root 5.5G 2008-08-02 18:59 > > Full-lidp10-2008-08-02-17:24:03 -rw-r----- 1 root root > 3.7G 2008-08-03 > > 23:28 Incr-lidp10-2008-08-03-22:05:34 -rw-r----- 1 > root root 17M > > 2008-08-04 22:05 Incr-lidp10-2008-08-04-22:03:34 > -rw-r----- 1 root root > > 17M 2008-08-05 22:06 Incr-lidp10-2008-08-05-22:04:36 > > > > -rw-r----- 1 root root 58G 2008-08-02 22:36 > > Full-lidp11-2008-08-02-17:50:02 -rw-r----- 1 root root > 56G 2008-08-04 > > 02:52 Incr-lidp11-2008-08-03-22:12:39 -rw-r----- 1 > root root 3.0G > > 2008-08-04 22:42 Incr-lidp11-2008-08-04-22:05:15 > -rw-r----- 1 root root > > 3.8G 2008-08-05 22:52 Incr-lidp11-2008-08-05-22:05:37 > > > > > > -rw-r----- 1 root root 6.4G 2008-08-02 21:22 > > Full-lidp20-2008-08-02-19:30:22 -rw-r----- 1 root root > 5.8G 2008-08-03 > > 23:45 Incr-lidp20-2008-08-03-22:13:43 -rw-r----- 1 > root root 30M > > 2008-08-04 22:15 Incr-lidp20-2008-08-04-22:07:51 > -rw-r----- 1 root root > > 30M 2008-08-05 22:16 Incr-lidp20-2008-08-05-22:08:27 > > > > -rw-r----- 1 root root 6.7G 2008-08-02 21:56 > > Full-lidp22-2008-08-02-21:09:01 -rw-r----- 1 root root > 4.6G 2008-08-03 > > 23:28 Incr-lidp22-2008-08-03-22:47:34 -rw-r----- 1 > root root 19M > > 2008-08-04 22:18 Incr-lidp22-2008-08-04-22:15:49 > -rw-r----- 1 root root > > 19M 2008-08-05 22:19 Incr-lidp22-2008-08-05-22:16:27 > > > > > > I am backing up 26 clients (AIX, HP-UX, Linux, Win2k > server), problem only > > occurs on some clients, and they are not same clients > every time. The > > problem has never occured on a AIX or windows client. > > > > I am also running veritas netbackup in parallel (my > old backup system). I > > am reluctantly attributing the problem to the > netbackup, because if > > netbackup changes ctime why doesn't it change it > on all the systems and why > > not same systems every time. In many cases bacula does > almost full backup, > > if netbackup is changing ctime it would change it on > all files and bacula > > would backup all files too. > > Perhaps there is some configuration parameter that is not > set correctly, and > when it references the files, it does not always reset the > time/date > correctly on some particular backup level ... > > I would recommend that you talk to Veritas about the > problem without > mentioning Bacula. Unless you configure Bacula > differently, it checks both > mtime and ctime, so if netbackup modified either one of > them, Bacula would > treat the file as having changed. If you configure Bacula > differently, you > can make it ignore ctime changes. I did more research and found that Netbackup has DO_NOT_RESET_FILE_ACCESS_TIME option which is not enabled on any of the systems, so it is likely that netbackup is changing ctime but does not do it consistently. How do I configure bacula to only use mtime for incremental backup? What are the side effects of looking only at mtime? > > One thing you could do (perhaps some bacula-users list guys > can help if you > need it) is to run a Bacula verify InitCatalog on one or > more of the affected > systems just before running netbackup then after you run > netbackup run a > verify catalog to see what files have changed. You can set > the parameters of > the verify to compare only mtime and ctime. That way, you > can definitively > determine whether or not netbackup is modifying anything on > your system. > > > > > I will have to wait for few more months before I > shutdown netbackup system > > and run only bacula. If the problem goes away after > that then I will know > > it was netbackup. > > I'll be *very* surprised if it turns out to be related > to Bacula itself as > this is such a fundamental problem that it surely would > have shown up on a > good number of other user's systems, which is not the > case. > > > > > I am running bacula 2.4.2 on server (fc9 64-bit) and > all the clients are at > > 2.2.8. > > The 2.2.8 clients should be 100% compatible with 2.4.2, but > I always recommend > that you upgrade as soon as possible ... > > Best regards, > > Kern Hemant Shah E-mail: [EMAIL PROTECTED] ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Bacula-devel mailing list Bacula-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-devel
