touch-packages team mailing list archive

[Robie Basak <1384503@xxxxxxxxxxxxxxxxxx>]

I'd still like to see this fixed, but based on Ryan's comment from when
he investigated this I don't think we can do this without a failure
case. I presume most reporters won't want to share their data publicly.
But we need a failure case in order to make progress.

Until we have one, I'm marking this bug as Incomplete, as I think that
sets a more accurate expectation. If someone can provide us with a
failure case, please do so and we can set the bug back to Triaged.

If you don't want to share the failure case publicly but are willing to
share it with a Canonical engineer then we can probably arrange
something around that. Please get in touch.

Alternatively if someone doesn't want to share the failure case at all
but is willing to prepare a patch and drive the SRU then that's fine,
too. We can believe you if you report success during pre-upload testing
and SRU verification and others who are affected can confirm.

** Changed in: rsync (Ubuntu Trusty)
       Status: Confirmed => Invalid

** Changed in: rsync (Ubuntu Trusty)
       Status: Invalid => Incomplete

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https://bugs.launchpad.net/bugs/1384503

Title:
  rsync fails on large files with compression

Status in rsync package in Ubuntu:
  Fix Released
Status in rsync source package in Trusty:
  Incomplete

Bug description:
  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--

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