[Gluster-users] "file changed as we read it" message during tar file creation on GlusterFS

[Nithya Balachandran]

Hi Mauro,

What version of Gluster are you running and what is your volume
configuration?

IIRC, this was seen because of mismatches in the ctime returned to the
client. I don't think there were issues with the files but I will leave it
to Ravi and Raghavendra to comment.


Regards,
Nithya


On 29 December 2017 at 04:10, Mauro Tridici <mauro.tridici at cmcc.it> wrote:

>
> Hi All,
>
> anyone had the same experience?
> Could you provide me some information about this error?
> It happens only on GlusterFS file system.
>
> Thank you,
> Mauro
>
> Il giorno 20 dic 2017, alle ore 16:57, Mauro Tridici <
> mauro.tridici at cmcc.it> ha scritto:
>
>
> Dear Users,
>
> I’m experiencing a random problem ( "file changed as we read it” error)
> during tar files creation on a distributed dispersed Gluster file system.
>
> The tar files seem to be created correctly, but I can see a lot of message
> similar to the following ones:
>
> tar: ./year1990/lffd1990050706p.nc.gz: file changed as we read it
> tar: ./year1990/lffd1990052106p.nc.gz: file changed as we read it
> tar: ./year1990/lffd1990052412p.nc.gz: file changed as we read it
> tar: ./year1990/lffd1990091018.nc.gz: file changed as we read it
> tar: ./year1990/lffd1990092300p.nc.gz: file changed as we read it
> tar: ./year1990/lffd1990092706p.nc.gz: file changed as we read it
> tar: ./year1990/lffd1990100312p.nc.gz: file changed as we read it
> tar: ./year1990/lffd1990100412.nc.gz: file changed as we read it
> tar: ./year1991/lffd1991012106.nc.gz: file changed as we read it
> tar: ./year1991/lffd1991010918.nc.gz: file changed as we read it
> tar: ./year1991/lffd1991011400.nc.gz: file changed as we read it
>
> I’m executing the tar command on a CentOS 6.2 operating system based server:
> it is a gluster native client.
>
> You can find below some basic info about the gluster client:
>
> [root at athena# rpm -qa|grep gluster
> glusterfs-3.10.5-1.el6.x86_64
> centos-release-gluster310-1.0-1.el6.centos.noarch
> glusterfs-client-xlators-3.10.5-1.el6.x86_64
> glusterfs-fuse-3.10.5-1.el6.x86_64
> glusterfs-libs-3.10.5-1.el6.x86_64
>
> Can I consider them as a false positive or the created tar files will
> suffer of inconsistence?
> Is it a tar command problem or a gluster problem?
>
> Could someone help me to resolve this issue?
>
> Thank you very much,
> Mauro
>
>
>
>
>
>
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