Re: How many files can I have safely in a subdirectory?
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Thanks! And thanks to all who have replied to this thread! I will see if I can get dir_index active. Bugzilla from criley@xxxxxxxx wrote: > > Greetings, > > I'm not sure if it's still the case, but there used to be a limit to how > many subdirectories a directory can have. 32k, to be exact. We ended up > creating our own (application level) directory hashing algorithm to work > around it several years ago. This might only be a kernel 2.4 thing > though. > > I'm unaware of any limit to number of files. However once the number of > files in a directory gets above about 64k, filesystem performance will > significantly decrease unless the filesystem has the dir_index option. > dir_index can be specified at filesystem creation or added later using > tune2fs (an fsck is required). > > Charles > > Charles Riley > eRAD, Inc. > > > > ----- Original Message ----- > From: "z0diac" <web2009@xxxxxxxxxxxxxxx> > To: ext3-users@xxxxxxxxxx > Sent: Sunday, August 30, 2009 12:00:12 PM GMT -05:00 US/Canada Eastern > Subject: How many files can I have safely in a subdirectory? > > > Ok, I'm running a vBulletin forum (3.8.4) and found that all user > attachments > go into 1 single directory for each user. For each attached file in the > forum, there's 2 files on disk (*.attach and *.thumb), for pictures that > is. > > One user already has over 100,000 attachements, thus, over 200,000 files > in > his attach directory. > > Someone recently told me to 'keep an eye on it' because certain setups > can't > hold more than X number of files in a single directory. Yet someone else > said I could have over 1 trillion files in a single directory if the HDD > was > large enough... > > Here's my setup: > > linux version: 2.6.18-92.1.10.el5 > php: 5.1.6 > mySQL: 5.0.45 > File system: ext3 > > vB support has told me any limitation there might be, will not be the > result > of vB, so now I'm looking at either Linux and the way it handles files, or > the ext3 file system. > > Does anyone know if I can just keep going with putting files into one > directory? (there will be over 1million probably by year's end. Hopefully > not more than 5 million ever). > > And, will having so many files in a single directory cause any performance > problems? (ie: slowdowns) > > My only option is to hire a coder to somehow have it split the 1M+ files > into several subdirs, say 50,000 per subdir. But even though it's messy, > if > it really doesn't make a difference in the end whether they're in 50 > subdirs, or just 1 dir, then I won't bother (and can sigh a breath of > relief) > > > Thanks in advance!! > z0diac is offline > Looking for Linux Hosting? Click Here. > > -- > View this message in context: > http://www.nabble.com/How-many-files-can-I-have-safely-in-a-subdirectory--tp25212801p25212801.html > Sent from the Ext3 - User mailing list archive at Nabble.com. > > _______________________________________________ > Ext3-users mailing list > Ext3-users@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/ext3-users > > _______________________________________________ > Ext3-users mailing list > Ext3-users@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/ext3-users > > -- View this message in context: http://www.nabble.com/How-many-files-can-I-have-safely-in-a-subdirectory--tp25212801p25244663.html Sent from the Ext3 - User mailing list archive at Nabble.com. _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
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