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Multi-cast with Location plugin enabled

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  • Z
    zacadams
    last edited by Mar 23, 2018, 6:17 PM

    I have been testing out the location plugin with my current fog setup of 1 master node and 1 remote fog storage node. During a multicast session I noticed my host machine, which is set to use the remote fog storage node, was showing that the storage location was the IP of my master node. The host will grab from the remote fog storage node during unicast session so my question is does the location plugin support multicast sessions?

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    • G
      george1421 Moderator
      last edited by george1421 Mar 23, 2018, 12:42 PM Mar 23, 2018, 6:42 PM

      FWIW, only master nodes can use multicast imaging. Unicast imaging can be from a master node -OR- storage node based on the guidance given by the location plugin. It is working by design.

      Are the master nodes and storage nodes located at the same site?

      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!

      Z 1 Reply Last reply Mar 23, 2018, 7:31 PM Reply Quote 0
      • Z
        zacadams
        last edited by Mar 23, 2018, 6:44 PM

        No, the master and storage node are in different locations.

        1 Reply Last reply Reply Quote 0
        • Z
          zacadams @george1421
          last edited by Mar 23, 2018, 7:31 PM

          @george1421 would I be able to set my remote storage node as a master node and then have multicast session run from it?

          G 1 Reply Last reply Mar 23, 2018, 8:05 PM Reply Quote 0
          • G
            george1421 Moderator @zacadams
            last edited by Mar 23, 2018, 8:05 PM

            @zacadams I’m pretty sure you need a full fog server to have the multicast component.

            FWIW, a full fog server can be a “storage node” in a storage group. Meaning you can have 2 full fog servers in the same storage group where once is configured as a master and one as a storage node (in the storage group). Your images will replicate from the master server to the remote fog server. The only issues and manual intervention would be to export the image definitions from the real master server and import them into the remote fog server. Understand this is an unsupported configuration but will work well as long as you don’t have a lot of new images on the master server because you will need to export and import for every new image.

            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!

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            • T
              Tom Elliott
              last edited by Mar 23, 2018, 8:06 PM

              Location plugin will attempt to make the location nodes masters where possible. Of course, you should have a storage node implicitly defined for the the location in question, otherwise it will try to set the master node of the storage group.

              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)

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              G Z 2 Replies Last reply Mar 23, 2018, 8:11 PM Reply Quote 0
              • G
                george1421 Moderator @Tom Elliott
                last edited by Mar 23, 2018, 8:11 PM

                @tom-elliott said in Multi-cast with Location plugin enabled:

                Location plugin will attempt to make the location nodes masters where possible.

                In that you are able to multicast from a storage node as long as all clients are in the same location?

                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!

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                • Z
                  zacadams @Tom Elliott
                  last edited by Mar 23, 2018, 8:12 PM

                  @tom-elliott I have the remote fog storage node set as the selected node for my remote location and for testing purposes have just set that storage node as a master node as well as my default master node. So for my defaultStorage group I have 2 master nodes, I am trying to now do the multicast on my remote host tied to my remote node. The session appears to start with the remote node now but is not starting the imaging process.

                  T 1 Reply Last reply Mar 23, 2018, 8:17 PM Reply Quote 0
                  • T
                    Tom Elliott @zacadams
                    last edited by Mar 23, 2018, 8:17 PM

                    @zacadams There can be only one! (Highlander reference anybody?)

                    For real, you can only have 1 master node per storage group. Unless you set both nodes as master in the database, directly - which will likely break things, you will only ever have a single storage node as the master node in a storage group.

                    As for multicast, it’s a fun game to play around with. Many switches disable forwarding of multicast traffic by default (as multicast will overburden a network). Is your network already setup to allow multicast streams?

                    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

                    Z 1 Reply Last reply Mar 23, 2018, 8:47 PM Reply Quote 0
                    • Z
                      zacadams @Tom Elliott
                      last edited by Mar 23, 2018, 8:47 PM

                      @tom-elliott I know it’s really weird man hahaha, it is currently showing that both are master nodes at the moment. So our setup is a campus with multiple buildings with many hosts in each building. Our current setup uses Ghost servers in each building (I guess the equivalent would be individual fog servers instead) installed on a physical machines in closets that then multicast to the respective hosts in the building. Our network admins will only let us use multicast when imaging to machines in the building so my plan was to use location as a way to represent these buildings and using their existing ghost boxes as fog storage nodes and multicasting from those nodes. I hope that makes sense, do you think my theory is possible with FOG in this setup?

                      T G 2 Replies Last reply Mar 23, 2018, 9:48 PM Reply Quote 0
                      • W
                        Wayne Workman
                        last edited by Mar 23, 2018, 9:13 PM

                        I don’t know if it’s already been said or not but, you can just create a new storage group - put your remote storage node into that new storage group - then set the node as master. Then it should multicast. To keep replication of images & snapins working, you’ll have to do cross-group sharing at the image level, you’d do that in image management on each individual image & each individual snapin.

                        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!
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                        Z 2 Replies Last reply Mar 26, 2018, 2:03 PM Reply Quote 0
                        • T
                          Tom Elliott @zacadams
                          last edited by Mar 23, 2018, 9:48 PM

                          @zacadams It’s not “theory” that’s what it was designed to do. Though what I might recommend is as Wayne suggested, just to keep things less confusing. Create a storage group for each location, and create a storage node for each group. (Images can be assigned to multiple groups so replication can still happen Group Master->Group master)

                          I’d recommend using true fog servers for this though (or storage nodes) not “ghost” as fog is a long way off from Ghost (and far better I think.)

                          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

                          Z 1 Reply Last reply Mar 26, 2018, 2:06 PM Reply Quote 0
                          • G
                            george1421 Moderator @zacadams
                            last edited by Mar 23, 2018, 11:03 PM

                            @zacadams said in Multi-cast with Location plugin enabled:

                            Our network admins will only let us use multicast when imaging to machines in the building

                            Just for clarity, how many machines do you typically image at one time?

                            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!

                            Z 1 Reply Last reply Mar 26, 2018, 2:08 PM Reply Quote 0
                            • Z
                              zacadams @Wayne Workman
                              last edited by zacadams Mar 26, 2018, 8:08 AM Mar 26, 2018, 2:03 PM

                              @wayne-workman I’ll give this a try today and see what I can find, thank you.

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                              • Z
                                zacadams @Tom Elliott
                                last edited by Mar 26, 2018, 2:06 PM

                                @tom-elliott beautiful I’m glad to see I was on the right track there, we currently use Ghost and are trying to move to Fog so if this does work I will be happy to see Ghost gone.

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                                • Z
                                  zacadams @george1421
                                  last edited by Mar 26, 2018, 2:08 PM

                                  @george1421 the amount of machines vary based on what classrooms are not in use, so it’ll range from 2-300 machines based on how large the classroom’s break is.

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                                  • Z
                                    zacadams @Wayne Workman
                                    last edited by Mar 26, 2018, 2:55 PM

                                    @wayne-workman said in Multi-cast with Location plugin enabled:

                                    To keep replication of images & snapins working, you’ll have to do cross-group sharing at the image level, you’d do that in image management on each individual image & each individual snapin.

                                    I am having trouble finding this setting in image management, would you be able to illuminate me to where I could find this?

                                    T 1 Reply Last reply Mar 26, 2018, 3:54 PM Reply Quote 0
                                    • T
                                      Tom Elliott @zacadams
                                      last edited by Mar 26, 2018, 3:54 PM

                                      @zacadams what version of fog are you using?

                                      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

                                      Z 1 Reply Last reply Mar 26, 2018, 5:17 PM Reply Quote 0
                                      • Z
                                        zacadams @Tom Elliott
                                        last edited by Mar 26, 2018, 5:17 PM

                                        @tom-elliott I am currently using 1.5.0, I tried using a configuration similar to @Wayne-Workman’s suggestion and the host just seems to stay at the multicast initialization screen but the session never starts.

                                        T 1 Reply Last reply Mar 26, 2018, 5:19 PM Reply Quote 0
                                        • T
                                          Tom Elliott @zacadams
                                          last edited by Mar 26, 2018, 5:19 PM

                                          @zacadams what’s the multicast log show?

                                          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

                                          Z 1 Reply Last reply Mar 26, 2018, 5:22 PM Reply Quote 0
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