Re: [Burp-users] File size limits

[Graham K. <ke...@sp...>]

On Mon, Feb 28, 2011 at 09:40:24AM +0000, Graham Keeling wrote:
> On Mon, Feb 28, 2011 at 08:58:29AM +0000, Graham Keeling wrote:
> > On Mon, Feb 28, 2011 at 08:14:24AM +0200, Israel Bravo wrote:
> > > Hi, I'm trying to use burp to backup some Windows 7 system.   Everything is fine, the first backup is executed, but the next time I get the following messages in the log:
> > > 
> > > 2011-02-28 00:31:38: burp[16312] (C:\Users\vered\Documents/Outlook Files/My Outlook Data File(1).pst)
> > > 2011-02-28 00:31:38: burp[16312] could not open /Backup/PC/PC_Vered/current/data/0000/0000/1ACA.gz: File too large
> > > 2011-02-28 00:31:38: burp[16312] error in sigjob_stuff
> > > 
> > > My question is - what is the max file size, how can the situation be resolved ?
> > > The problem is that Outlook creates very large ".pst" file (12Gb in my example).
> > > 
> > > Thank you for help.
> > 
> > Hello,
> > Thanks for your report.
> > 
> > I didn't know that there was any file size limit. I have not programmed one in.
> > 
> > Actually, I haven't yet tried to backup a file of that size. The biggest I have
> > done so far is around 2GB (backing up the whole file, making a small change to
> > it, then backing it up again).
> > 
> > I know that librsync had a bug with file sizes, but I believe that I patched
> > it before I built the Windows binaries. I will double check this to make
> > sure. Did you perhaps compile the Windows binary yourself?
> > 
> > I will attempt to reproduce the problem and get back to you.
> 
> 
> Ah, it just occurred to me that you might be using a slightly old version of
> burp, because the 'sigjob_stuff' code does not exist any more. You might
> want to upgrade to burp-1.1.0.
> 
> Also, it is the server-side stuff that is giving you a problem. The burp
> server is trying to open a file from the backed up archive in order to generate
> a signature for the next backup.
> This suggests to me that it is a problem with the file system or the operating
> system on the server.
> 
> So, my questions are:
> a) What is the server operating system / kernel version?
> b) What is the server file system?
> c) What is the size of /Backup/PC/PC_Vered/current/data/0000/0000/1ACA.gz?
> 
> Thanks,
> Graham.


For the benefit of the list:

I believe that this was a problem with the version of zlib on the burp server.
I use zlib-1.2.5 and it works fine. Older versions of zlib may have issues with
opening large files. I have made a note on the website FAQ.