for now there is no caching - anyway - how should checksums be cached? if mtime/size is no reliable method for detecting file changes and checksum is the only method - to detect if you need to update the cache you need to ... checksum .... and thus a checksum cache is quite nonsense, imho.
> I suppose it could be cached at either storage location. if you use rsync on a mapped drive, you have no "local" and "remote" storage location from an rsync`s point of view, because rsync isn`t being executed on the remote node. so if rsync calculates a checksum it`s always transferring the whole file via mapped drive. regards roland > -----Ursprüngliche Nachricht----- > Von: "Stephen Zemlicka" <[EMAIL PROTECTED]> > Gesendet: 30.09.07 07:30:04 > An: "'Matt McCutchen'" <[EMAIL PROTECTED]> > CC: rsync@lists.samba.org > Betreff: RE: Mapped Drive > > The problem is some files don't change in size. So I was hoping that the > checksums could be cached. Perhaps I'm mistaken but I thought the checksum > determined what actual blocks were transferred. I suppose it could be > cached at either storage location. > > _____________________________ > Stephen Zemlicka > Integrated Computer Technologies > PH. 608-558-5926 > E-Mail [EMAIL PROTECTED] > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Matt > McCutchen > Sent: Saturday, September 29, 2007 5:03 PM > To: Stephen Zemlicka > Cc: rsync@lists.samba.org > Subject: Re: Mapped Drive > > On 9/28/07, Stephen Zemlicka <[EMAIL PROTECTED]> wrote: > > Is there a way to have rsync cache the checksums for something like this > and > > would that help? > > I'm not sure exactly what you mean. You said you were using the -c > (--checksum) option, which makes rsync decide whether to update each > destination file by reading the file in full and comparing its MD4/MD5 > checksum with that of the source file. Do you mean you want rsync to > cache the checksums of the destination files? On which machine would > the cache be? > > Anyway, if the issue is that you don't want rsync spending the > bandwidth to read the destination files for the --checksum check, just > remove -c and rsync will use the default size-and-mtime quick check. > > Matt > > -- > To unsubscribe or change options: > https://lists.samba.org/mailman/listinfo/rsync > Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html > _________________________________________________________________________ In 5 Schritten zur eigenen Homepage. Jetzt Domain sichern und gestalten! Nur 3,99 EUR/Monat! http://www.maildomain.web.de/?mc=021114 -- To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
