search for: xdelta

Has xdelta (in ports under misc/xdelta) ever been considered as a means of delivering binary patches for security updates? It seems to be a pretty neat. -- Regards, Michael Nottebrock -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-s...

Hello, lately I've been playing with the idea of doing in-place updates of systems using either rsync or xdelta. However, both rsync and xdelta seem to be dead set on writing a new file first, and then atomically exchanging it with the old file. Now, as I want to apply a binary delta to a full filesystem, bigger than the available temporary space, this really makes rsync and xdelta extremely tough to use (...

Hi I have a system that I'm trying to run `yum update` on. It fails with the following error: Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Check Error: file /usr/share/man/man1/xdelta.1.gz from install of xdelta-1.1.4-1.el5.rf conflicts with file from package xdelta-1.1.3-20 file /usr/share/emacs/site-lisp/psvn.el from install of subversion-1.5.5-0.1.el5.rf conflicts with file from package subversion-1.4.2-2.el5 file /usr/share/man/man1/svn.1.gz from install of subversion-1....

xdelta results: 666198016 CentOS-4.0-Beta-Binary-CD1.iso 635330560 CentOS-4.0-Beta-Binary-CD2.iso 661059584 CentOS-4.0-Beta-Binary-CD3.iso 662018048 CentOS-4.0-Beta-Binary-CD4.iso 444139520 CentOS-4.0-Beta-Binary-CD5.iso - 658491392 CentOS-4.0.rc1-i386-bin1of5.iso 611952640 CentOS-4.0.rc1-i386-bin2of5.is...

Hi list, is there any working solution for deduplication of data for centos? We are trying to find a solution for our backup server which runs a bash script invoking xdelta(3). But having this functionality in fs is much more friendly... We have looked into lessfs, sdfs and ddar. Are these filesystems ready to use (on centos)? ddar is sthg different, I know. Thx Rainer

...ed-down thing meant only to support rproxy? On 13 Nov 2000, Martin Pool Responded: Here's a quick history: In the beginning was rsync, which is a file transfer protocol. At the moment I look after the day-to-day stuff, and tridge watches the evolution. rsync gave rise to Josh Macdonald's XDelta, which is optimized for the case where old and new versions are on the same machine, and so it can generate more efficient deltas. tridge extracted the algorithm into librsync, which I renamed to libhsync when I changed the wire format. The code currently checked in as librsync is in my opinion n...

...rom install of subversion-1.6.2-1.el5.rf.x86_64 conflicts with file from package subversion-1.4.2-4.el5.i386 file /usr/share/xemacs/site-packages/lisp/psvn.el from install of subversion-1.6.2-1.el5.rf.x86_64 conflicts with file from package subversion-1.4.2-4.el5.i386 file /usr/share/man/man1/xdelta.1.gz from install of xdelta-1.1.4-1.el5.rf.x86_64 conflicts with file from package xdelta-1.1.3-20.i386 Error Summary ------------- ********************************* This message and any attachments (the "message") are confidential and intended solely for the addressees. Any u...

...Linux/Alpha when xpos=NaN. When xpos = NaN, it shouldn't go into the following "if" statement. But it goes inside on Alpha/Linux (because ixmin is 0), and set y[0] and y[1] to NaN. Following is extracted from massdist.c for(i=0 ; i<*nx ; i++) { xpos = (x[i] - *xlow) / xdelta; ix = floor(xpos); fx = xpos - ix; if(ixmin <= ix && ix <= ixmax) { y[ix] += (1.0 - fx); y[ix + 1] += fx; } else if(ix == -1) { y[0] += fx; } else if(ix == ixmax + 1) { y[ixmax + 1] += (1.0 - fx); } } So...

...S graphics capabilities. Note that colors are generally specified *************** data("volcano") *** 115,121 **** x <- 10*1:nrow(volcano) y <- 10*1:ncol(volcano) l <- pretty(range(volcano), 10) ! opar <- par(bg="lightcyan") pin <- par("pin") xdelta <- diff(range(x)) ydelta <- diff(range(y)) --- 116,122 ---- x <- 10*1:nrow(volcano) y <- 10*1:ncol(volcano) l <- pretty(range(volcano), 10) ! par(bg="lightcyan") pin <- par("pin") xdelta <- diff(range(x)) ydelta <- diff(range(y)) ***********...

Hello group, I'm having a very hard time rsyncing efficiently a MySQL database which contains very large binary blobs. (Actually, it's the database of Mantis bug tracker [http://www.mantisbt.org/], with file attachments stored directly in the table rows. I know it's a bad idea from many other reasons, but let's say it was given to me as such.) First, I was dumping the

...ng data, or re-writing the existing data. Essentially, in-place addition/removal of data to a file at a place other than the end of the file. Some possible use-cases of such a feature would be: (a) Databases (currently hack around this by allocating sparse files) (b) Delta-patching (rsync, patch, xdelta, etc) (c) Video editors (especially if combined with reflink copies) Besides I/O savings, it would also have significant space savings if the current subvolume being written to has been snapshotted (a common use-case for incremental backups). I''ve been told that the problem is somewhat d...

Hi, Is there a way in which rsync's -z compression (zlib) utility can be benchmarked? I'm trying to compare the compression ratio between rsync and external compression tools like gzip and bzip2. Are there any advantages to using rsync's internal compression mechanism specified with the -z option compared to solely applying external compression i.e. bzip2 to the files and invoking

For anyone who'd like to check out the latest release of my "rzync" [sic] test release, I've just released a new version. For those that might not have time to look at the code but could provide some feedback based on a rough description, I've created the following simple web page: http://www.clari.net/~wayne/new-protocol.html Here's the tar file of the new

I'm trying to use the rsync algorithm for incremental backups. After a quick look at rsync I saw the batch mode operations, and I thought that maybe I can modify them for incremental backups. What is needed is to add an option to save the checksums of all the files of the level 0 backup and a second option to use the level n checksum to calculate the delta batch files for the level n+1

I came to know about rsync algorithm for transferring files few days ago. The algorithm provides an efficient way to transfer files from one computer to another over a slow communication link. But I have been wondering why don't we see a widespread implementation of rsync in most popular file transfer tools. I know that the algorithm was conceived by Andrew Tridgell and Paul Mackerras from

Hi all, I am writing a xdelta-like application as a personal experiment and am busy implementing the rsync protocol, so far so good. I am using C++ templates and creating the algorithms so that operate on any stream, array, etc. through iterators. All seems well except that I am getting a lot of false hits with the weak ch...

Hello, I'm currently evaluating the possibility of implementing a rsync client in a project for my company. The platform used is currently not supported and implementing the client from scratch currently seems to be the most feasible approach. For that I'd be very much interested in a description of the protocol that rsync talks on port 873. Is such a description available somewhere? I

Hi, Where can I get good pointers on the rolling checksum algorithm used in rsync? I need an 8-bit or 12-bit rolling checksum too. Any place where "rolling" checksum algorithms are discussed? Seun Osewa ------------------------------------------------- This mail sent through IMP: http://horde.org/imp/

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...hunk of code. I spent nearly 4 hours in reading it. Ok, first you transmit your version, e.g. "@RSYNCD: 29"; then you select the module, e.g. "ftp", or list the modules via "#list". But how to select the directory in the module? And how to download a file/produce the xdelta. Is there maybe a paper or something similar describing this protocol? My other Problem is librsync -- the header file is unreadable. Is there maybe a doucmentation about this? Thanks for any help Matthias-Christian Ott __________________________________________________________________ Der Tisca...