Messages in this thread | | | Date | Mon, 31 Jul 2006 16:02:37 -0600 | From | "Jeff V. Merkey" <> | Subject | Re: the " 'official' point of view" expressed by kernelnewbies.org regarding reiser4 inclusion |
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Jeff V. Merkey wrote:
> Gregory Maxwell wrote: > >> On 7/31/06, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote: >> >>> Its well accepted that reiserfs3 has some robustness problems in the >>> face of physical media errors. The structure of the file system and the >>> tree basis make it very hard to avoid such problems. XFS appears to >>> have >>> managed to achieve both robustness and better data structures. >>> >>> How reiser4 compares I've no idea. >> >> >> >> Citation? >> >> I ask because your clam differs from the only detailed research that >> I'm aware of on the subject[1]. In figure 2 of the iron filesystems >> paper that Ext3 is show to ignore a great number of data-loss inducing >> failure conditions that Reiser3 detects an panics under. >> >> Are you sure that you aren't commenting on cases where Reiser3 alerts >> the user to a critical data condition (via a panic) which leads to a >> trouble report while ext3 ignores the problem which suppresses the >> trouble report from the user? >> >> *1) http://www.cs.wisc.edu/adsl/Publications/iron-sosp05.pdf > > > Hi Gregory, Wikimedia Foundation and LKML? > How's Wikimania going. :-) > > What he says is correct. I have seen some serious issues with > reiserfs in terms of stability and > data corruption. Resier is however FASTER, but the statement is has > robustness issues is accurate. > I was using reiserfs but we opted to make EXT3 the default for Solera > appliances, even when using Suse 10 > due to issues I have seen with data corruption and hard hangs on RAID > 0 read/write sector errors. I have > stopped using it for local drives and based everything on EXT3. Not > to say it won't get there eventually, but > file systems have to endure a lot of time in the field and deployment > befor they are ready for prime time. >
Correction,
That's "MediWiki" appliances. Two many transposed acronyms...
www.wolfmountaingroup.com
:-)
Jeff
> The Wikimedia appliances use Wolf Mountain, and I've tested it for > about 4 months with few problems, but > I only use it for hosting the Cherokee Langauge Wikipedia. It's > performance is several magnitudes better > than either EXT3 or ReiserFS. Despite this, for vertical wiki > servers, its ok to go out with, folks can specifiy > whether they want appliances with EXT3, Reiser, or WMFS, but iit's a > long way from being "cooked" > completely, though it does scale to 1 exabyte FS images. > Reiser does have issues still, and I hestitate to standardize on it > until I stop seeing reports from the field about > corruption and failover issues. > > Jeff > > - > To unsubscribe from this list: send the line "unsubscribe > linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
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