On Mon, Jul 30, 2012 at 4:36 AM, Arnd Hannemann <arnd@xxxxxxxxxx> wrote: > Am 29.07.2012 21:13, schrieb C Anthony Risinger: >> On Sun, Jul 29, 2012 at 2:02 PM, Konstantin Dmitriev >> <ksee.zelgadis@xxxxxxxxx> wrote: >>> Dipl.-Ing. Michael Niederle <mniederle <at> gmx.at> writes: >>> >>>> I reinstalled over 700 packages - plt-scheme beeing the only one failing due to >>>> the btrfs link restriction. >>>> >>> >>> I have hit the same issue - tried to run BackupPC with a pool on btrfs >>> filesystem. After some time the error of "too many links (31)" appeared to me. >>> Now I'm forced to migrate to some other filesystem... >> >> btrfs only fails when you have hundreds of hardlinks to the same file >> in the *same* directory ... certainly not a standard use case. > > Actually, "hundreds of hardlinks" is certainly over optimistic. > In my testing 15 links in the same directory were enough to get > the "Too many links" error. It depends on the length of the file > name of the hardlinks. Yes, per the linked patch it states 4k as the limit ... I thought I recalled a limit of 256 but it seems I may have been mistaken. The purpose of my initial response was to suggest an alternative strategy -- one complementing btrfs's strengths -- a simple rsync + snapshot is much more effective than BackupPC IMO ... but then again, I'm bias, because I generally think BackupPC is junk. -- C Anthony -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
