similar to: benchmarking rsync's -z compression utility

I'm interested in these very questions (librsync-rsync relationship, remaining limitations of rsync, active prospects for ground-up rewrites), Google searches for rsync info have proved a little too vague due to the programs ubiquity. Much has certainly changed since this was written, could some people with knowledge in these areas could update martin's response for the state of rsync,

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/

What is the general recommendation for compression when using ssh? Is it a wasteful performance hit to have both ssh and rsync do compression (when using rsync over ssh)? If so, is there a clear prefference which is more efficient, rsync or ssh? Brian K. White -- brian@aljex.com -- http://www.aljex.com/bkw/

I'm not sure if this is the appropriate forum for questions regarding librsync, but couldn't find any others. I'm trying to get librsync working properly on Solaris 2.7 and 2.8 Sparc servers. The problem is that while librsync appears to compile cleanly, "make check" fails the sources.test. Does anyone have any insight as to why this might be? Might I need a specific

hello, I'm new to this list. here is my question: I would like to synchronize two computers (say the home one and the job one) using zip drives or similar (cdroms, etc), since modem lines are quite slow and expensive (in Italy). I though I could produce the "signature" of files on home computer, store it on a zip, go to job, run rsync to copy the missing or altered files on

Hi, while implementing the rsync protocol in one of our projects I found that the current CVS version still has a MD4 bug. I'm using the FreeBSD libmd implementation and I still had checksum mismatches with protocol version 27 for files whose size was a multiple of 64 - 4 ( - 4 due to checksum_seed). A patch for todays CVS version is attached. Someone should also review the clean_fname()

Hi, I currently create large (500MB-2.5GB) tar.gz files that I am trying to get to rsync better. After doing some research by reading a lecture presented by the original author of rsync and googling the list archives, I have concluded that the gzip-rsyncable.diff is the best way to get gzipped files to rsync nicely. The only version I could find of this patch is available here:

On Thu, 2004-04-08 at 12:36, Martin Pool wrote: > On 5 Apr 2004, Donovan Baarda <abo@minkirri.apana.org.au> wrote: > > > librsync needs a whole file checksum. Without it, it silently fails for > > case 1), 3), and 4). > > Yes, a whole-file checksum should be used with it. Presumably > something stronger than md4 like SHA-1. md4 is probably good enough for most

G'day, I've been working on a Python interface to librsync and have noticed that it uses md4sum code borrowed from Andrew Tridgell and Martin Pool that comes via rsync and was originally written for samba. Is there anything special about this code compared to the RSA md4sum code that can be found with libmd <"http://www.penguin.cz/~mhi/libmd/">? Python uses the RSA

HI, I'm trying to have files to be included during rsync. I have the filesystem /stor/circuit_design/, with the following subdirectories as its contents: clock_speed fub_layout test_simulations pattern_flow I would only like to rsync the following 2 subdirectories to the destination machine: clock_speed fub_layout and they're contained in the file called files_included: # cat

On Tue, 2006-02-21 at 14:58 -0800, rsync2eran@tromer.org wrote: > A year ago we discussed the strength of the MD4 hash used by rsync and > librsync, and one of the points mentioned was that only collision > attacks are known on MD4. Could you please forward this into the bug tracker so it's not lost? -- Martin -------------- next part -------------- A non-text attachment was

Hi, I have a unique issue that I am dealing with here. I need to develop rsync algorithm into a library that can be re-used with my VB / VC application on Windows platform. I need your advice if there is any library already available on the Internet for this? I did get librsync but that is just a header file which I do not know how to compile also with the existing code I have. Can you

On Tue, Jan 28, 2003 at 11:22:14PM -0800, Craig Barratt wrote: > And I have several things I would like to work on and submit: > > - Fix the MD4 block and file checksums to comply with the rfc > (currently MD4 is wrong for blocks of size 64*n, or files > longer than 512MB). > > - Adaptive first pass checksum lengths: use 3 or more bytes of the MD4 > block

Hi, The following lines in compat.c are rather imprudent: if (read_batch || write_batch) checksum_seed = 32761; else checksum_seed = time(NULL); write_int(f_out,checksum_seed); Setting checksum_seed to a constant in batch mode means block collisions are reproducible and predictable. Thus, some files will be permanently "unlucky" in batch mode and will

I've been working for the past few months with open-source solutions for syncing Palm PDAs (Coldsync, mostly). I've been becoming increasingly annoyed with Palm's Desktop Link Protocol and the sync mechanism, and am considering replacing it with a third-party application for the Palm. Since I've had good luck with rsync in the past, its seemed an obvious choice. I've

Hi, I tried performing a complete copy of 17GB of filesystems over the WAN (0.8GB/hr) with the speed of 16Mbps. The filesystem consists of several large g-zipped files. These large g-zipped files have actually been zipped out of other sub-filesystems and directories. I noticed that while transferring a lists of large g-zipped files, rsync tends to take a much longer time to transfer those files

HI, I'm trying to transfer a list of files within a filesystem to another filesystem. I've used the option: # rsync -avzol --progress /wp05/global/FCSI/WP_RLS05/rundir/ /nfs_proj/global/WP/ However, it had produced the error below: building file list ... global/FCSI/WP_RLS05/rundir/wp_celtic_max_fullwarn.tcl.log: Value too large to be stored in data type # du -sk wp_celtic_max.tcl.log

Is there any chance for rdiff ? I need to frequently synchronize big text file (60MB+) undertaking small changes and I am interested in differences between the subsequent versions [DNS RBL data in dnsbl format, 1E6+ lines of text, new version every 20m, on average 50 new entries (lines) in every synchronization] I would like to get (small) diff file as result of rsync session and apply it to

Hello, just being fascinated by rsync I wanted to look at the distribution files at ftp://rsync.samba.org, but it was not possible to get a ftp connection to that address. Is the ftp service down there? Thanks in advance for any soon helpful hint. Have a nice day Michael -- Michael Schmidt mschmidt@fh-koblenz.de MIRROR OF Ghostscript * X-Windows X11

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