No clues?
> -----Original Message----- > From: Edward Ned Harvey [mailto:[email protected]] > Sent: Saturday, October 16, 2010 8:19 AM > To: [email protected] > Subject: checksum error > > I have a master & slave server, in US and India. They are both 1.6.12, > but > the slave was 1.5.7 until a few days ago. > > > > The mast is at rev 5050, but the slave will only sync up to rev 5045. > Every > time it tries to sync 5046, I get a checksum error in the apache > error_log. > It says some file fails md5. > > > > In order to figure out where the corruption is, I tried using a svn > client, > to simply checkout that file from the master, rev 5044, 5045, 5046. > Had no > problem. Correct me if I'm wrong, but, if the corruption were on the > server, I should have gotten the error during that operation, right? > Does > the svn sync slave do md5 checksums that the svn client doesn't do? > > > > If I restore the slave from backup, and re-try the sync, it > consistently > fails at 5045 trying 5046, and always the same file, and always the > same > mismatched checksum. > > > > Since we're drawing the conclusion that the corruption is in the slave, > it > must mean that a past version of something was corrupted and > undetected. In > fact, when I upgraded from 1.5.7 to 1.6.12, I did a dump & load. So it > seems, if I had silently corrupted on-disk, I should have discovered > the > problem at that time, right? Unless perhaps ... 1.5 didn't do > checksums so > the 1.6 dump & load has nothing from the past to verify... > > > > Does 1.6 do some new md5 checksumming that 1.5 didn't do? > > > > Anyway, I'm transferring a new fresh copy of the repo to the slave. I > figure this should fix it. But I'm extremely curious how this all > happened.

