[Digikam-devel] I HATE EXT4

[Andi Clemens]

I could restore all my data now... but I'm not sure if I want to keep ext4.
About Git: well I do backups every day, 10 or 20 times :D
Its fast if you rsync to a harddisk, takes only 30 seconds most of the time.

For me SVN is much more unsafe. What if the server crashes and backup fails, 
too?
Then all the sourcecode of KDE for example is gone. With GIT, everyone has the 
complete repository of the project on his computer.
So if 1000 guys would work on digikam, we would have 1000 backups ;-)

When I'm away from home and there is no internet connection, I still can 
commit stuff locally. With SVN this is not possible. Try to work on 5 big 
things simultanously, this is a pain with SVN.

With Git I have a branch for every patch I do and can easily switch between 
them.

Well anyway this is not about Git vs SVN (Git will win this anyway, in every 
way ;-)).

Andi

On Friday 19 June 2009 13:32:01 Gilles Caulier wrote:
> Too bad.
>
> I recommend you to take another look to reiserfs. Here i use it on all
> computers in production (around 20)
>
> and i have never lost data. never. it's very robust.
>
> To be clear, generally around august, during holidays, all computers
> still on. it's critic period because nobody still there at work, only
> few guardians.
>
> In August, a lots of storms break power supply. We have power safe for
> one hour, but in few case it's not enough. Until this year, we don't
> have no mechanism to shutdown computers properlly. More than on time i
> can see computer stopped in live as well, with important data shared
> on the network. Of course we have automatic backup, but it can be long
> to restore.
>
> Never, i can said never, i see data lost. Computer restart  and
> process HDD check. Sometime, i need to switch in command line during
> start-up and run manually reiser-fsck program on the right partitions.
> That all.
>
> Another experience have be done with an old laptop (now dead (:=))).
> during a long time have see random crashes and dysfunctions with only
> one way to restart computer : remove battery and use power supply
> instead. I never lost data.
>
> About commit and other stuff : I never use git to make local branch :
> it's dangerous. I prefer to use remote repository and commit, commit
> and commit. I never lost data.
>
> I work with more than one computer, and sometime, at the same time.
> It's the hell to work. use only one remote and common repository is
> the safe way.
>
> This is why, i recommend to use home development branches in KDE svn.
> It simple and safe. Of course making backup from your computer can
> help, but it can take time. svn ci can take 2 seconds. no more.
>
> Just my experience (:=)))
>
> Gilles
>
> 2009/6/19 Andi Clemens <andi.clemens at gmx.net>:
> > Hi,
> >
> > ok that's it! I will never ever touch this filesystem in my life. After
> > having some trouble over the last months, today was the day I really had
> > a fucked up system.
> > I suspend my laptop over night. As I resumed this morning, my EXT4 media
> > partition was nearly empty. All my music was gone, my images, my source
> > codes, everything. Some folders were still there, nearly 34GB of data was
> > gone. I had made a backup the evening before, so I thought I will try to
> > restore the data. But it isn't working. I get IO-Errors all the time,
> > saying that it can't access some specific folders on the "broken" ext4
> > partition.
> > I ran fsck, and a badsector check, too. Nothing.... all seems to be fine.
> > I finally deleted all files on this partition and started rsync again:
> > IO- Error: can't access the folder (although they were deleted).
> > I guess the INode-Table is broken or some other ext4 information, but I
> > don't want to give it another try.
> >
> > I don't trust any extX filesystem now. This is really a problem because I
> > don't like reiserfs, either, only on /var for my package manager.
> > Oh before anyone mentions this: I used nodelalloc in fstab as well as
> > barriers=0 and noatime.
> > But still I have this massive data loss. How is this even possible? I
> > couldn't have 34GB opened so that a missing flush will fill those files
> > with zeros. And why can't I access the folder anymore, even when I delete
> > and recreate it?
> >
> > It seems that ext4 doesn't like suspend to ram, because sometimes I
> > rebooted my machine and it always told me that the filesystem contains
> > errors on startup.
> > But I never had such problems with ext3 and JFS.
> >
> > I hope I can restore my system and don't lose too much data now, but for
> > me EXT4 is dead... Hope you guys never experience this...
> >
> > I think I need some time before I can get productive again here, my
> > sourcecodes are gone, too... and unfortunately I had not committed
> > everything yet.
> >
> > Damn it I'm f****ng angry right now. I never had such a data loss in my
> > life, even Windows was more stable.
> > How can they say ext4 is good enough to use it productively? I read such
> > comments over and over now, and today I had the same experience...
> >
> > Andi
> >
> >
> >
> > _______________________________________________
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> > Digikam-devel at kde.org
> > https://mail.kde.org/mailman/listinfo/digikam-devel
>
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