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    Solved Multicast Issues on Centos 7

    FOG Problems
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    • B
      BedCruncher @Tom Elliott
      last edited by

      @Tom-Elliott

      To answer your questions, I will handle the second one first. I went through and verified that yes, I do have a firewall on my server (firewalld), and as a way to get around the default zone of public that the em2 interface was assigned, I moved it to the “trusted” zone so that it wouldn’t filter any traffic whatsoever. After that, I then was able to get some more information for muticasting testing for you.

      I got to playing around with the the commands and debug mode on an individual client and I noticed a slight issue when comparing the multicast port in the fog settings with the command that is logged when I trigger and try to run the multicast task. The logged part I am referencing is --portbase 50028 but when I checked that against what I had listed in the fogsettings multicast port 56904. I attempted to change to settings to mirror what is in the log file, but continually fail at the part where I attempt to run the command

      cat /images/W7Px64PreSysprep/d1p1.img | /usr/local/sbin/udp-sender --interface em2 --min-receivers 2 --max-wait 600 --portbase 50028 --full-duplex --ttl 32 --nokbd --nopointopoint;cat /images/W7Px64PreSysprep/d1p2.img | /usr/local/sbin/udp-sender --interface em2 --min-receivers 2 --max-wait 600 --portbase 50028 --full-duplex --ttl 32 --nokbd --nopointopoint;

      However, if I follow that part near the bottom middle of this Multicasting page, I can get it to work running the same command

      gunzip -c /images/W7Px64PreSysprep/d1p1.img | /usr/local/sbin/udp-sender --interface em2 --min-receivers 2 --max-wait 600 --portbase 50028 --full-duplex --ttl 32 --nokbd --nopointopoint;gunzip -c /images/W7Px64PreSysprep/d1p2.img | /usr/local/sbin/udp-sender --interface em2 --min-receivers 2 --max-wait 600 --portbase 50028 --full-duplex --ttl 32 --nokbd --nopointopoint;

      Then both clients begin to receive the images as expected.

      Tom ElliottT 1 Reply Last reply Reply Quote 0
      • Wayne WorkmanW
        Wayne Workman @Wayne Workman
        last edited by

        @Wayne-Workman said in Multicast Issues on Centos 7:

        Look at this:
        https://wiki.fogproject.org/wiki/index.php?title=Troubleshoot_Downloading_-_Multicast

        https://wiki.fogproject.org/wiki/index.php?title=Multicast

        let us know how it goes, we are here to help.

        Many times, I’ll post things and later on an answer is found that was already in one of the links I posted… seeing how long this thread has gone for, I’m just going to repost these links to be looked at again by the OP and any future readers.

        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!
        Daily Clean Installation Results:
        https://fogtesting.fogproject.us/
        FOG Reporting:
        https://fog-external-reporting-results.fogproject.us/

        B 1 Reply Last reply Reply Quote 1
        • Tom ElliottT
          Tom Elliott @BedCruncher
          last edited by

          @BedCruncher Seeing as, as I understand it, you’ve removed managed switch scenarios as a potential causing problems, but you’re still having issues, does your FOG server (or something else) have a firewall running that’s just blocking any multicast/UDP traffic?

          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

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

            @BedCruncher Can you run a join.me session?

            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

            B 1 Reply Last reply Reply Quote 0
            • B
              BedCruncher @Sebastian Roth
              last edited by BedCruncher

              @Sebastian-Roth
              I did that through my dumb switch and also removed the min-receivers switch and tried it manually. Still didn’t work. I then plugged the server directly into the switch and tried only the simplified command that I got to work before and it also failed.

              I will try that tomorrow as I won’t have access to the server until then.

              Tom ElliottT 2 Replies Last reply Reply Quote 0
              • S
                Sebastian Roth Moderator
                last edited by

                @BedCruncher When using this command you need to bring up at least two clients with udp-receive to actually make it start sending - see the --min-receivers 2 option:

                cat /images/W7Px64PreSysprep/d1p1.img | /usr/local/sbin/udp-sender --interface em2 --min-receivers 2 --max-wait 600 --portbase 50028 --full-duplex --ttl 32 --nokbd --nopointopoint

                So please try this again by hand. Start the udp-sender up on your FOG server like this (don’t need the logging option - will just print on screen). Then boot two of your clients in debug mode and run: udp-receiver --file test.img --portbase 50028 --ttl 32 --nokbd (on both clients). If your network is setup properly this should work!!!

                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

                B 1 Reply Last reply Reply Quote 0
                • B
                  BedCruncher @Sebastian Roth
                  last edited by BedCruncher

                  @Sebastian-Roth
                  So I tried both of the udp-sender commands

                   udp-sender --file /opt/fog/.fogsettings --log /tmp/multicast.log  --ttl 32 --nopointopoint --interface em2

                  which results in

                  13:41:14.387632 Using mcast address 232.168.240.10
13:41:14.387698 UDP sender for /opt/fog/.fogsettings at 192.168.240.10 on em2 
13:41:14.387708 Broadcasting control to 224.0.0.1

                  displaying in the logs and then no task found

                  and also

                   cat /images/W7Px64PreSysprep/d1p1.img | /usr/local/sbin/udp-sender --interface em2 --min-receivers 2 --max-wait 600 --portbase 50028 --full-duplex --ttl 32 --nokbd --nopointopoint;cat /images/W7Px64PreSysprep/d1p2.img | /usr/local/sbin/udp-sender --interface em2 --min-receivers 2 --max-wait 600 --portbase 50028 --full-duplex --ttl 32 --nokbd --nopointopoint;

                  which results in the same message as above, but not the repeated no active task found entries. I also updated to build 7470 earlier. It is acting differently. I don’t see that the udp-sender and udp-receiver are talking any more.

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

                    @BedCruncher Now that we have the logging back can you please try running udp-sender by hand again using the exact same command as seen in the logs?

                    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

                    B 1 Reply Last reply Reply Quote 0
                    • B
                      BedCruncher @BedCruncher
                      last edited by

                      Hey guys, I had to step away over the weekend. Has there been any new updates?

                      1 Reply Last reply Reply Quote 0
                      • B
                        BedCruncher @Tom Elliott
                        last edited by BedCruncher

                        @Tom-Elliott
                        No it’s not. I have the em2 interface controlling the DHCP server and have a cable running to a 5 port Gig switch. It’s a dumb switch with no special routing or anything. I even checked under the dhcpd.leases file and can find it there.

                        lease 192.168.240.30 {
  starts 4 2016/04/28 12:50:28;
  ends 4 2016/04/28 18:50:28;
  cltt 4 2016/04/28 12:50:28;
  binding state active;
  next binding state free;
  rewind binding state free;
  hardware ethernet 00:26:b9:aa:14:ec;
  uid "\001\000&\271\252\024\354";
}

                        EDIT:
                        Updated to build 7410 this morning to hopefully see if it might have been fixed.
                        EDIT 2:
                        Updated and initiated a new test and still getting the same results.

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

                          @BedCruncher When the client boots to begin the tasking, is it on a separate subnet from the 192.168.240.10 server?

                          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

                          B 1 Reply Last reply Reply Quote 0
                          • B
                            BedCruncher @Tom Elliott
                            last edited by

                            @Tom-Elliott
                            Here’s the info. I also compared it to a second host that I had added to a group for multitasking, and it appears identical, barring the mac address of course. Let me know what else you can recommend and I’ll be glad to accommodate.

                            #!ipxe
set fog-ip 192.168.240.10
set fog-webroot fog
set boot-url http://${fog-ip}/${fog-webroot}
kernel bzImage32 loglevel=4 initrd=init_32.xz root=/dev/ram0 rw ramdisk_size=127000 keymap= web=192.168.240.10/fog/ consoleblank=0 rootfstype=ext4 rootfstype=ext4 mac=00:26:b9:aa:14:ec ftp=192.168.240.10 storage=192.168.240.10:/images/ storageip=192.168.240.10 web=192.168.240.10/fog/ osid=5 consoleblank=0 irqpoll hostname=0026b9aa14ec chkdsk=0 img=W7Px64PreSysprep imgType=mps imgPartitionType=all imgid=1 imgFormat= PIGZ_COMP=-6 hostearly=1 port=50028 type=down mc=yes
imgfetch init_32.xz
boot
                            Tom ElliottT 1 Reply Last reply Reply Quote 0
                            • Tom ElliottT
                              Tom Elliott @BedCruncher
                              last edited by

                              @BedCruncher What’s output if you go to (in the browser)

                              http://ip.of.fog.here/fog/service/ipxe/boot.php?mac=macofhostwithcolons

                              Where macofhostwithcolons is the mac address (with colons) of the host that’s setup to do this tasking?

                              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

                              B 1 Reply Last reply Reply Quote 0
                              • B
                                BedCruncher
                                last edited by BedCruncher

                                I am now getting logging working, but

                                [04-28-16 7:46:38 am] 
 ___ ___ ___ 
 /\ \ /\ \ /\ \ 
 /::\ \ /::\ \ /::\ \ 
 /:/\:\ \ /:/\:\ \ /:/\:\ \ 
 /::\-\:\ \ /:/ \:\ \ /:/ \:\ \ 
 /:/\:\ \:\__\ /:/__/ \:\__\ /:/__/_\:\__\ 
 \/__\:\ \/__/ \:\ \ /:/ / \:\ /\ \/__/ 
 \:\__\ \:\ /:/ / \:\ \:\__\ 
 \/__/ \:\/:/ / \:\/:/ / 
 \::/ / \::/ / 
 \/__/ \/__/ 

 ###########################################
 # Free Computer Imaging Solution #
 # Credits: #
 # http://fogproject.org/credits #
 # GNU GPL Version 3 #
 ###########################################

[04-28-16 7:46:38 am] Interface Ready with IP Address: xx.xx.xx.xx
[04-28-16 7:46:38 am] Interface Ready with IP Address: xx.xx.xx.xx
[04-28-16 7:46:38 am] Interface Ready with IP Address: 192.168.240.10
[04-28-16 7:46:38 am] Interface Ready with IP Address: REMOVED
[04-28-16 7:46:38 am] Interface Ready with IP Address: REMOVED
[04-28-16 7:46:38 am] * Starting MulticastManager Service
[04-28-16 7:46:38 am] * Checking for new items every 10 seconds
[04-28-16 7:46:38 am] * Starting service loop
[04-28-16 7:46:38 am] * No tasks found!
[04-28-16 7:46:48 am] * No tasks found!
[04-28-16 7:46:58 am] * No tasks found!
[04-28-16 7:47:09 am] * No tasks found!
[04-28-16 7:47:19 am] * No tasks found!
[04-28-16 7:47:29 am] * No tasks found!
[04-28-16 7:47:39 am] * No tasks found!
[04-28-16 7:47:49 am] * No tasks found!
[04-28-16 7:48:00 am] * No tasks found!
[04-28-16 7:48:10 am] * No tasks found!
[04-28-16 7:48:20 am] * No tasks found!
[04-28-16 7:48:30 am] * No tasks found!
[04-28-16 7:48:40 am] * No tasks found!
[04-28-16 7:48:50 am] * No tasks found!
[04-28-16 7:49:01 am] * No tasks found!
[04-28-16 7:49:11 am] * No tasks found!
[04-28-16 7:49:21 am] * No tasks found!
[04-28-16 7:49:31 am] * No tasks found!
[04-28-16 7:49:41 am] * No tasks found!
[04-28-16 7:49:51 am] * No tasks found!
[04-28-16 7:50:02 am] | Sleeping for 10 seconds to ensure tasks are properly submitted
[04-28-16 7:50:12 am] | 0 tasks to be cleaned
[04-28-16 7:50:12 am] | 1 task found
[04-28-16 7:50:12 am] | Task (4) Multi-Cast Task is new!
[04-28-16 7:50:12 am] | Task (4) Multi-Cast Task has been cleaned.
Udp-sender 20120424
[04-28-16 7:50:12 am] | Task (4) /images/W7Px64PreSysprep image file found.
Using mcast address 232.168.240.10
UDP sender for (stdin) at 192.168.240.10 on em2 
Broadcasting control to 224.0.0.1
[04-28-16 7:50:12 am] | Task (4) 2 client(s) found.
[04-28-16 7:50:12 am] | Task (4) Multi-Cast Task sending on base port: 50028
[04-28-16 7:50:12 am] | CMD: cat /images/W7Px64PreSysprep/d1p1.img | /usr/local/sbin/udp-sender --interface em2 --min-receivers 2 --max-wait 600 --portbase 50028 --full-duplex --ttl 32 --nokbd --nopointopoint;cat /images/W7Px64PreSysprep/d1p2.img | /usr/local/sbin/udp-sender --interface em2 --min-receivers 2 --max-wait 600 --portbase 50028 --full-duplex --ttl 32 --nokbd --nopointopoint;
[04-28-16 7:50:12 am] | Task (4) Multi-Cast Task has started.
[04-28-16 7:50:22 am] | 0 tasks to be cleaned
[04-28-16 7:50:22 am] | 1 task found
[04-28-16 7:50:22 am] | Task (4) Multi-Cast Task is already running PID 13546
[04-28-16 7:50:32 am] | 0 tasks to be cleaned
[04-28-16 7:50:32 am] | 1 task found
[04-28-16 7:50:32 am] | Task (4) Multi-Cast Task is already running PID 13546
[04-28-16 7:50:42 am] | 0 tasks to be cleaned
[04-28-16 7:50:42 am] | 1 task found

                                the above after letting it for quite a few minutes the above ending to this log gets repeatedly entered. I also ran the ran the command ps aux | grep udp

                                ps aux | grep udp
root     13546  0.0  0.0 115240  1456 ?        S    07:50   0:00 sh -c cat /images/W7Px64PreSysprep/d1p1.img | /usr/local/sbin/udp-sender --interface em2 --min-receivers 2 --max-wait 600 --portbase 50028 --full-duplex --ttl 32 --nokbd --nopointopoint;cat /images/W7Px64PreSysprep/d1p2.img | /usr/local/sbin/udp-sender --interface em2 --min-receivers 2 --max-wait 600 --portbase 50028 --full-duplex --ttl 32 --nokbd --nopointopoint;
root     13548  0.0  0.0   8640   664 ?        S    07:50   0:00 /usr/local/sbin/udp-sender --interface em2 --min-receivers 2 --max-wait 600 --portbase 50028 --full-duplex --ttl 32 --nokbd --nopointopoint
root     13753  0.0  0.0 112644   964 pts/1    S+   07:57   0:00 grep --color=auto udp

                                Still hangs at the same partclone screen as before.

                                ps ax | grep FOG
13062 ?        Ss     0:00 /usr/bin/php -q /opt/fog/service/FOGMulticastManager/FOGMulticastManager &
13065 ?        S      0:06 /usr/bin/php -q /opt/fog/service/FOGMulticastManager/FOGMulticastManager &
13081 ?        Ss     0:00 /usr/bin/php -q /opt/fog/service/FOGImageReplicator/FOGImageReplicator &
13084 ?        S      0:00 /usr/bin/php -q /opt/fog/service/FOGImageReplicator/FOGImageReplicator &
13100 ?        Ss     0:00 /usr/bin/php -q /opt/fog/service/FOGSnapinReplicator/FOGSnapinReplicator &
13103 ?        S      0:00 /usr/bin/php -q /opt/fog/service/FOGSnapinReplicator/FOGSnapinReplicator &
13119 ?        Ss     0:00 /usr/bin/php -q /opt/fog/service/FOGTaskScheduler/FOGTaskScheduler &
13122 ?        S      0:00 /usr/bin/php -q /opt/fog/service/FOGTaskScheduler/FOGTaskScheduler &
13134 ?        Ss     0:00 /usr/bin/php -q /opt/fog/service/FOGPingHosts/FOGPingHosts &
13137 ?        S      0:00 /usr/bin/php -q /opt/fog/service/FOGPingHosts/FOGPingHosts &

ps aux | grep Multicast
root     13062  0.0  0.8 323076 15852 ?        Ss   07:46   0:00 /usr/bin/php -q /opt/fog/service/FOGMulticastManager/FOGMulticastManager &
root     13065  0.4  0.6 411168 13028 ?        S    07:46   0:05 /usr/bin/php -q /opt/fog/service/FOGMulticastManager/FOGMulticastManager &
root     14024  0.0  0.0 112648   960 pts/1    S+   08:06   0:00 grep --color=auto Multicast
                                Tom ElliottT 1 Reply Last reply Reply Quote 0
                                • B
                                  BedCruncher
                                  last edited by

                                  I’ve updated to version 7386 to try and get this part of things fixed. Will post back once I test this.

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

                                    @Sebastian-Roth Should be fixed in latest, sorry.

                                    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

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

                                      @Tom-Elliott Turns out something is wrong with the services logs in current trunk! I don’t see multicast.log on a fresh latest install… Service is properly running. Probably something to do with the static/self switch I suppose?!?

                                      FOGMulticastManager[16754]: PHP Warning:  fopen(): Filename cannot be empty in /var/www/html/fog/lib/service/fogservice.class.php on line 82
FOGMulticastManager[16754]: PHP Warning:  fopen(): Filename cannot be empty in /var/www/html/fog/lib/service/fogservice.class.php on line 91

                                      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

                                      Tom ElliottT 1 Reply Last reply Reply Quote 0
                                      • B
                                        BedCruncher @Sebastian Roth
                                        last edited by

                                        @Sebastian-Roth

                                        Just finished the upgrade to 7356 and ran

                                        ps ax | grep FOG
16001 ?        Ss     0:00 /usr/bin/php -q /opt/fog/service/FOGMulticastManager/FOGMulticastManager &
16004 ?        S      0:00 /usr/bin/php -q /opt/fog/service/FOGMulticastManager/FOGMulticastManager &
16020 ?        Ss     0:00 /usr/bin/php -q /opt/fog/service/FOGImageReplicator/FOGImageReplicator &
16023 ?        S      0:00 /usr/bin/php -q /opt/fog/service/FOGImageReplicator/FOGImageReplicator &
16039 ?        Ss     0:00 /usr/bin/php -q /opt/fog/service/FOGSnapinReplicator/FOGSnapinReplicator &
16042 ?        S      0:00 /usr/bin/php -q /opt/fog/service/FOGSnapinReplicator/FOGSnapinReplicator &
16058 ?        Ss     0:00 /usr/bin/php -q /opt/fog/service/FOGTaskScheduler/FOGTaskScheduler &
16061 ?        S      0:00 /usr/bin/php -q /opt/fog/service/FOGTaskScheduler/FOGTaskScheduler &
16073 ?        Ss     0:00 /usr/bin/php -q /opt/fog/service/FOGPingHosts/FOGPingHosts &
16076 ?        S      0:00 /usr/bin/php -q /opt/fog/service/FOGPingHosts/FOGPingHosts &
16388 pts/1    S+     0:00 grep --color=auto FOG

                                        I can see that they are running as expected.

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

                                          @BedCruncher Did you tun the service restart??? What do you get from this command? ps ax | grep FOG

                                          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

                                          B 1 Reply Last reply Reply Quote 0
                                          • B
                                            BedCruncher @Sebastian Roth
                                            last edited by BedCruncher

                                            @Sebastian-Roth said in Multicast Issues on Centos 7:

                                            service FOGMulticastManager restart
                                            tail -f /var/log/fog/multicast.log

                                            Below is what that shows.

                                            tail -f /var/log/fog/multicast.log

                                            Can you verify the permissions that you have on that logfile? such as user, group, and file permissions? No, I completely understand, I was just trying to post that in the hopes that it would provide at least some extra information for your troubleshooting.

                                            On my system the path /var/log/fog is actually a symlink to /opt/fog/log and I didn’t create this manually. Had to have been put in place on the installation.

                                            As near as I can tell fog is never actually writing to the multicast.log file. It was only getting what I had posted earlier when it was manually ran during the udp-sender/udp-receiver testing.

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