I have 35 servers backing up nightly with RSync and one of them is getting this error not matter what I try.
All the servers are 2008R2 and the problem server and the daemon are the newest version available of cwRSync.
Backups will start and will fail somewhere in the process of copying files at a random file. The file doesn't have permissions issues, is not large (under 1mb in some cases) and my network guy doesn't see any issues on the network side of things. Only one out of 35 servers is having the issue and it happens any time RSync runs.
Here is the command being used.
"C:\Program Files (x86)\cwRsync\bin\rsync.exe" -vv --recursive --partial --time-limit=660 --stats --times --ignore-errors --human-readable --itemize-changes --modify-window=2 --delete-during --force --no-whole-file --exclude-from=//SERVER/SHARE/FILE.txt --log-file=//SERVER/SHARE/SERVERLOG.log /cygdrive/d/PATH SERVER.DOMAIN.COM::MODULE
1 of 35 servers ? It sounds definitely that the problem is related to that particular server. Any software known to disturb Cygwin ? You can increase verbosity (--verbose or -v up to three times) to check if there are some patterns which can help for a further explanation ? I have no idea about the load of your rsync setup. However, using a Windows share for logging can create some delays with impact on performance and stability.
The software on this DC is the same as the others, a very vanilla setup and nothing out of the ordinary. All the servers use the same share for their log files and it has been running that way for 3+years.
I am investigating if AV or something else could be interfering with it but nothing conclusive there yet.