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Multicast Issues on Centos 7

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FOG Problems
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  • B
    BedCruncher
    last edited by Apr 22, 2016, 5:50 PM

    I’ve verified that the interface is set correctly in the storage management on the web gui. It has em2 listed there. I’ve also truncated the tables specified in the first link and restarted the services. Still hanging.

    0_1461345166597_upload-5d431115-9e7f-40b1-93bc-23ca585f632a

    I am getting in the multicast log

    12:42:29.341277 UDP sender for /opt/fog/.fogsettings at xxx.xxx.xxx.xxx on em1
    12:42:29.341288 Broadcasting control to xxx.xxx.xxx.xxx
    12:44:54.434308 Using mcast address xxx.xxx.xxx.xxx

    It seems to be ignoring the specified interface in the .fogsettings file.

    I had to make one modification to the UDP-Cast command in that it shows the clients connecting if I specify em2 instead of em1.

    1 Reply Last reply Reply Quote 0
    • T
      Tom Elliott
      last edited by Apr 22, 2016, 5:51 PM

      The interface to check would be at the Storage Node, not the Global Settings (those are just a failsafe if everything else fails to work right.)

      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 Apr 22, 2016, 5:57 PM Reply Quote 1
      • B
        BedCruncher @Tom Elliott
        last edited by BedCruncher Apr 22, 2016, 1:13 PM Apr 22, 2016, 5:57 PM

        @Tom-Elliott 0_1461347866309_upload-edb39534-8efa-4e25-a06d-e5f83c75d6f6

        Sorry… I’ve verified this as above and the settings are what I would expect for both the IP Address and the interface.

        1 Reply Last reply Reply Quote 0
        • D
          dvchuyen
          last edited by Apr 25, 2016, 2:52 AM

          I’m facing same problem

          1 Reply Last reply Reply Quote 0
          • W
            Wayne Workman
            last edited by Apr 25, 2016, 4:16 AM

            I’m going to work on a far more simplified multicast test that people can set up using udpsender and udpreciever

            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 Apr 25, 2016, 12:36 PM Reply Quote 0
            • B
              BedCruncher @Wayne Workman
              last edited by Apr 25, 2016, 12:36 PM

              @Wayne-Workman

              Using one of the links, can’t remember which. I was able to get the server and client to send using the udp-sender and udp-receiver. So I know they can talk, but I had to use the command.

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

              if I dropped the last bit off then it would still try to grab em1 instead of em2.

              W 2 Replies Last reply Apr 25, 2016, 2:20 PM Reply Quote 1
              • W
                Wayne Workman @BedCruncher
                last edited by Wayne Workman Jun 11, 2016, 11:44 AM Apr 25, 2016, 2:20 PM

                @BedCruncher said in Multicast Issues on Centos 7:

                @Wayne-Workman

                Using one of the links, can’t remember which. I was able to get the server and client to send using the udp-sender and udp-receiver. So I know they can talk, but I had to use the command.

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

                if I dropped the last bit off then it would still try to grab em1 instead of em2.

                wiki

                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/

                1 Reply Last reply Reply Quote 0
                • S
                  Sebastian Roth Moderator
                  last edited by Apr 25, 2016, 2:27 PM

                  @BedCruncher said:

                  if I dropped the last bit off then it would still try to grab em1 instead of em2.

                  Can you please schedule another multicast job and check with ps ax | grep udp to see if the started commands are missing the --interface parameter on your system?

                  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 Apr 25, 2016, 5:07 PM Reply Quote 0
                  • B
                    BedCruncher @Sebastian Roth
                    last edited by Apr 25, 2016, 5:07 PM

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

                    ps ax | grep udp

                    Are you saying I need to do this from the debug boot or schedule a normal multicast and run something along the lines of

                    watch -n 5 'ps aux | grep udp'
                    
                    1 Reply Last reply Reply Quote 0
                    • B
                      BedCruncher
                      last edited by Apr 25, 2016, 5:25 PM

                      I’ve updated my current install version to 7300 earlier today and tried to again reapply the fix specified in the wiki to change the command for the function getIPAddress in the file fogbase.class.php and not in the file FOGCore.Class.php

                      exec("/sbin/ip addr list em2 | grep -o '[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}/[0-9]\{1,2\}' | cut -d/ -f1", $arR, $retVal);
                      
                      1 Reply Last reply Reply Quote 0
                      • S
                        Sebastian Roth Moderator
                        last edited by Apr 26, 2016, 8:24 AM

                        @BedCruncher I didn’t have much time to replicate this on one of my test machines yet. So I kind of just throw ideas at you, sorry.

                        Running ps aux | grep udp on the FOG server - to see all the command line options…

                        The command in function getIPAddress (fogbase.class.php) lookes like this in current trunk:

                        exec("/sbin/ip addr | awk -F'[ /]+' '/global/ {print $3}'",$IPs,$retVal);
                        

                        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 Apr 26, 2016, 2:09 PM Reply Quote 0
                        • B
                          BedCruncher @Sebastian Roth
                          last edited by Apr 26, 2016, 2:09 PM

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

                          exec(“/sbin/ip addr | awk -F’[ /]+’ ‘/global/ {print $3}’”,$IPs,$retVal);

                          No worries Sebastian, I’m just trying to get the exact information you’re requesting. Want to make sure that you get the pertinent information for your question so that we can get this figured out 100%.

                          I changed the function back to what you posted from current trunk. I had attempted to change it in relation to the
                          FOG .32 Centos 7 Instructions, but to no avail.

                          Keep the ideas coming. I’d love to put this one to bed and get back to using this awesome software!

                          1 Reply Last reply Reply Quote 0
                          • S
                            Sebastian Roth Moderator
                            last edited by Apr 26, 2016, 7:54 PM

                            @BedCruncher Ok, I finally had some time to spin up my test machine and give it a try. Setting ens4 instead of eth0 in the storage settings I get this in the logs:

                            [04-26-16 9:46:58 pm]  | CMD: cat /images/foo/d1p1.img | /usr/local/sbin/udp-sender --interface ens4 --min-receivers 2 --max-wait 600 --portbase 58038 --full-duplex --ttl 32 --nokbd --nopointopoint...
                            

                            As well I see the command (options) in the process tree on the FOG server with ps ax | grep udp:

                            3350 ?        S      0:00 sh -c cat /images/foo/d1p1.img | /usr/local/sbin/udp-sender --interface ens4 --min-receivers 2 --max-wait 600 --portbase 62258 --full-duplex --ttl 32 --nokbd --nopointopoint
                            

                            This is with FOG trunk unmodified. I don’t think you need to change fogbase.class.php! Please see what you have in your process list on the FOG server after starting the multicast task.

                            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 Apr 27, 2016, 12:47 PM Reply Quote 0
                            • B
                              BedCruncher @Sebastian Roth
                              last edited by BedCruncher Apr 27, 2016, 6:52 AM Apr 27, 2016, 12:47 PM

                              @Sebastian-Roth

                              So I started the multicast session from my server this morning and checked the Multicast Log from the webgui, but I am not seeing that that command has fired off in the logs. Also, I don’t see the udp task showing up in my process list. Excuse my ignorance, but did I do something incorrect?

                              EDIT:
                              The command to at least trigger the process has worked though as it starts the process of trying to do the imaging but hangs at the same spot as before. Any guidance would be helpful.

                              Just realized maybe you were referring to have me run the UDP-Sender / UDP-Receiver commands manually?

                              1 Reply Last reply Reply Quote 0
                              • S
                                Sebastian Roth Moderator
                                last edited by Apr 27, 2016, 1:41 PM

                                @BedCruncher said:

                                Just realized maybe you were referring to have me run the UDP-Sender / UDP-Receiver commands manually?

                                Nope, I was asking you to run the command ps ax | grep udp and show the output to us. From what I get you don’t seem to have any udp-sender processes running after you started multicast task. Please make sure you have a valid image on your server: ls -al /images/<img-name> (please post the output here as well!)…

                                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 Apr 27, 2016, 3:45 PM Reply Quote 0
                                • B
                                  BedCruncher @Sebastian Roth
                                  last edited by BedCruncher Apr 27, 2016, 9:46 AM Apr 27, 2016, 3:45 PM

                                  @Sebastian-Roth

                                  Here’s the result of the

                                  ls -al
                                  
                                  ls -al /images/
                                  total 4
                                  drwxrwxrwx.  5 root root   81 Apr 27 10:39 .
                                  dr-xr-xr-x. 20 root root 4096 Apr 27 10:08 ..
                                  drwxrwxrwx.  2 root root   22 Apr 27 10:39 dev
                                  -rwxrwxrwx.  1 root root    0 Apr 27 08:48 .mntcheck
                                  drwxrwxrwx.  2 root root   29 Apr 27 08:48 postdownloadscripts
                                  drwxrwxrwx.  2 root root   69 Apr 27 10:39 W7Px64PreSysprep
                                  

                                  and

                                  ps -aux | grep udp
                                  
                                  ps aux | grep udp
                                  root     25751  0.0  0.0 112644   960 pts/1    S+   10:45   0:00 grep --color=auto udp
                                  
                                  1 Reply Last reply Reply Quote 0
                                  • S
                                    Sebastian Roth Moderator
                                    last edited by Sebastian Roth Apr 27, 2016, 10:45 AM Apr 27, 2016, 4:44 PM

                                    @BedCruncher No UDP-sender processes… please check you multicast.log to see if it actually starts any…

                                    As stated in one of my earlier posts I see this in my multicast.log:

                                    [04-26-16 9:46:58 pm]  | CMD: cat /images/foo/d1p1.img | /usr/local/sbin/udp-sender --interface ens4 ...
                                    

                                    You might want to upgrade to the latest version as Tom has fixed a bug which truncated the log file every so often. So you might miss the output. Upgrade and then see what you have in the logfile!

                                    As well, show us what you have in the image directory: ls -al /images/W7Px64PreSysprep

                                    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 Apr 27, 2016, 5:14 PM Reply Quote 0
                                    • B
                                      BedCruncher @Sebastian Roth
                                      last edited by Apr 27, 2016, 5:14 PM

                                      @Sebastian-Roth
                                      Results of

                                       ls -al /images/W7Px64PreSysprep/
                                      total 22338008
                                      drwxrwxrwx. 2 root root          69 Apr 27 10:39 .
                                      drwxrwxrwx. 5 root root          81 Apr 27 10:39 ..
                                      -rwxrwxrwx. 1 root root     1048576 Apr 27 10:12 d1.mbr
                                      -rwxrwxrwx. 1 root root     8561702 Apr 27 10:12 d1p1.img
                                      -rwxrwxrwx. 1 root root 22864501047 Apr 27 10:39 d1p2.img
                                      -rwxrwxrwx. 1 root root         190 Apr 27 10:12 d1.partitions
                                      

                                      On a side note, I went in earlier and completely wiped out my current install according to Uninstall Fog and then reinstalled earlier this morning and the multicast portion didn’t show up at all until manually ran touch /opt/fog/log/multicast.log and the selection was also missing from the Log Viewer menu. I verified the file permissions of that file compared to the other longs under that directory.

                                      Just downloaded build 7348 and am now getting
                                      0_1461777264325_upload-aaa9be64-165d-4547-9748-779c94f5ade1

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                                      • B
                                        BedCruncher
                                        last edited by BedCruncher Apr 27, 2016, 12:06 PM Apr 27, 2016, 5:58 PM

                                        Following that screen, I let it run for a bit, then while it was doing the invalid session scrolling, I deleted and reinitiated a multicast session and it’s hanging at the same spot as previous.
                                        0_1461780367043_upload-d0a02c2d-9ddc-4537-a9ec-9211330574d4

                                        1 Reply Last reply Reply Quote 0
                                        • S
                                          Sebastian Roth Moderator
                                          last edited by Sebastian Roth Apr 27, 2016, 1:10 PM Apr 27, 2016, 7:09 PM

                                          @BedCruncher I am very sorry but without information (log file for example) I am not able to help. Posting the partclone picture is nice but does not really help I am afraid. Hope this does not sound ignorant, it’s not meant to!

                                          We need to get some log output from the FOGMulticastManager (multicast.log)! Or at least see the udp-sender processes on the FOG server. Otherwise multicast will not work. Please try this:

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

                                          Notice the log path! Multicast daemon writes the log to /var/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

                                          B 1 Reply Last reply Apr 27, 2016, 7:34 PM Reply Quote 0
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