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    Image/Snapin Replication Failed: Group Ownership

    Scheduled Pinned Locked Moved Solved
    FOG Problems
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    • S
      Sebastian Roth Moderator
      last edited by

      @markbam Quite obviously I headed down the wrong lane! If I had waited a few more mintues to read you last answer I wouldn’t have posted that.

      I’ll probably need to dig into this further and test myself. Will need a bit of time though.

      Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

      Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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      • M
        markbam
        last edited by

        This may or may not be related:

        To update Fog, the installer tells me I need to delete the user account fogproject. When I do so, it changes the user:group of the files in my snapins and images folder from fogproject:fogproject to fogproject:www-data.

        So now I know where the www-data is coming from.

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        • M
          markbam
          last edited by

          I think I’m on to something. Restating the problem: The Fog Snapin Replication log shows that the snapin transfers are successful but then fails to chmod and the snapins are deleted from the Storage Node.

          But, even though Fog records the transfer as successful, it looks like the snapins don’t actually finish their copy. The snapins only transfer ~100MB, then something goes wrong. Fog logs the transfer as successful anyway and tries to chmod which fails because the file isn’t completely there.

          So I’m guessing I’m either dropping a connection or hitting a FTP timeout somewhere?

          1 Reply Last reply Reply Quote 0
          • S
            Sebastian Roth Moderator
            last edited by

            @markbam Good catch!! Are you sure the disk on the storage node has enough free space?

            Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

            Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

            M 1 Reply Last reply Reply Quote 0
            • M
              markbam @Sebastian Roth
              last edited by markbam

              @Sebastian-Roth

              Yup plenty of space. Only 34 GB of 2TB used.

              1 Reply Last reply Reply Quote 0
              • M
                markbam
                last edited by

                I’ve been noticing some odd things happening:

                “Test1.zip” starts an lftp command to transfer to /opt/fog/snapins on the Storage node as expected. Then at ~100mb transferred, the file “Test1.zip” disappears from /opt/fog/snapins on the Storage node BUT the ftp command is still active and transferring. The vsftp processes still have cpu and network activity.

                It seems that the file is still stuck transferring to memory but, since it ceases to physically exist, lftp can’t perform a clean termination (the chmod command).

                I am able to reproduce this myself using just the command I pulled from Fog. This is run on from the Fog Server:
                lftp -e ‘set ftp:list-options -a;set net:max-retries 10;set net:timeout 30; set net:limit-rate 0:128000; mirror -c --parallel=20 -R -i “Test1.zip” --ignore-time -vvv --exclude “.srvprivate” “/opt/fog/snapins” “/opt/fog/snapins”; exit’ -u fogproject,‘xxxxxx’ xxx.xxx.xxx.xxx

                With this I can see a progress bar continuing even after the file disappears from the Storage Node at ~100mb.

                Tom ElliottT 1 Reply Last reply Reply Quote 0
                • Tom ElliottT
                  Tom Elliott @markbam
                  last edited by

                  @markbam Can you get logs from the remote side?

                  I don’t know exactly what logs to look for, likely FTP logs if you have them as well as output of dmesg

                  I’m wondering if selinux is stopping the connection for any files that are beyond 100M. The other thing to look at is /tmp on the remote box. If there’s not enough room there (maybe it’s only got around 100M available too?) I imagine it could be causing an unexpected issue too?

                  Just spit-balling of course.

                  Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

                  Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                  Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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                  • S
                    Sebastian Roth Moderator
                    last edited by Sebastian Roth

                    @markbam Ok, let’s try to enable VSFTP verbose logging: Edit /etc/vsftpd/vsftpd.conf, it should look like this:

                    max_per_ip=200
                    anonymous_enable=NO
                    local_enable=YES
                    write_enable=YES
                    local_umask=022
                    dirmessage_enable=YES
                    xferlog_enable=YES
                    connect_from_port_20=YES
                    xferlog_std_format=YES
                    listen=YES
                    pam_service_name=vsftpd
                    userlist_enable=NO
                    tcp_wrappers=YES
                    

                    Add the following two lines:

                    log_ftp_protocol=YES
                    vsftpd_log_file=/var/log/vsftpd.log
                    

                    and change this one line:

                    xferlog_std_format=NO
                    

                    This cahnge is important, as it won’t properly log if the later is still set to YES.

                    Now restart vsftpd service and watch the log /var/log/vsftpd.log…

                    Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                    Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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                    • S
                      Sebastian Roth Moderator
                      last edited by

                      @markbam Any news on this?

                      Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                      Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

                      M 1 Reply Last reply Reply Quote 0
                      • M
                        markbam @Sebastian Roth
                        last edited by

                        @Sebastian-Roth

                        Nothing definitive yet. The ftp logs aren’t showing anything out of the ordinary.
                        I’m now thinking somehow my network backend between the two sites could be a culprit. I’ve put in a request for more bandwidth and am waiting for that to kick in.

                        1 Reply Last reply Reply Quote 0
                        • S
                          Sebastian Roth Moderator
                          last edited by

                          @markbam Are you good with network analyzing using tcpdump/wireshark? If you are keen to give it a try let and need help just let us know.

                          Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                          Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

                          1 Reply Last reply Reply Quote 0
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