[Bugs] [Bug 1251291] New: tar on a glusterfs mount displays "file changed as we read it" even though the file was not changed

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1251291

            Bug ID: 1251291
           Summary: tar on a glusterfs mount displays "file changed as we
                    read it" even though the file was not changed
           Product: GlusterFS
           Version: 3.7.3
         Component: replicate
          Severity: medium
          Assignee: bugs at gluster.org
          Reporter: gkuri at ieee.org
                CC: bugs at gluster.org, gluster-bugs at redhat.com



Description of problem:

tar command on the glusterfs mount point is seen to report the following error
on some files -

tar: /usr/portage/app-accessibility/festival: file changed as we read it

Version-Release number of selected component (if applicable):

3.7.3

How reproducible:

Very Easily reproducible.

Steps to Reproduce:
1. tar czvf /tmp/foo.tgz /path/to/files/in/gluster/mountpoint


Actual results:

While the tar command is running, the above described messages are seen for
many files.


Expected results:

tar should run without seeing the above messages

Additional info:

Also, while editing files using vi in a gluster mountpoint, vi exhibits "The
file changed since the last time it was read, when going to save the file."

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