Public bug reported: Copying large (>10GB) files with rsync -z (compression) leads to a long hang and eventual error after transferring part of the file. The error is consistent. The file copies at normal speed until it reaches its maximum size (1.4 GB out of 20 GB for one, 6.9 GB out of 29 GB for another). Then nothing happens for a while (many minutes). Finally, there is an error:
[....] jh/.VirtualBox/win7/win7.vbox jh/.VirtualBox/win7/win7.vbox-prev jh/.VirtualBox/win7/win7.vdi rsync: [sender] write error: Broken pipe (32) rsync error: error in rsync protocol data stream (code 12) at io.c(837) [sender=3.1.0] In this case, 6.9 GB of 29 GB transferred. Without -z, it works. See the following upstream report, with a comment at the end from the rsync maintainer: https://bugzilla.samba.org/show_bug.cgi?id=10372 According to this report, version 3.1.0 (included in 14.04) uses a different compression package from prior versions. Prior versions did not have this problem for me using the same command on the same systems. Both hosts ran Ubuntu 11.10 at the time, and all run 14.04 now, in each case with all updates applied, Intel hardware. Network connection between them is gigabit ethernet through one switch. A shell ssh between them in a terminal works and stays up during the failure, so it is not a network issue. There are no relevant entries in syslog on either machine. There is sufficient capacity on the receiving disk. All filesystems are ext4. rsync command: /usr/bin/rsync -aHSxvz --delete --stats --exclude=lost+found --exclude=.gvfs --exclude=/nonlaptop /home/ backup.host.edu:/bu/host/home/ (yes, I changed the machine names) Current release (both hosts): Description: Ubuntu 14.04.1 LTS Release: 14.04 Current package (both hosts): rsync: Installed: 3.1.0-2ubuntu0.1 Candidate: 3.1.0-2ubuntu0.1 Version table: *** 3.1.0-2ubuntu0.1 0 500 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages 100 /var/lib/dpkg/status 3.1.0-2 0 500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages Thanks, --jh-- ** Affects: rsync (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to rsync in Ubuntu. https://bugs.launchpad.net/bugs/1384503 Title: rsync fails on large files with compression To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rsync/+bug/1384503/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
