Invalid Multicast session

Tom Elliott

I guess I’m not understanding.

You’re trying to do what I call a “Named” session for multicast?

rbaldwin

This post is deleted!

rbaldwin

No, just an ordinary multi-cast to a group. At least I don’t think so, it never prompts me for a name for the task.
I click Group Management, then I click click “List all Groups” then I click the Multi-cast button in the “Tasking” column.

I can image the host individually with the Deploy button in the Tasking column, but Multi-cast fails.

Tom Elliott

Well I’m testing a named session right now.

I’ll follow right up with a group deploy session.

I’m only using a single host to manage it at this point though (as it’s all I have readily available to test with at the moment).

Tom Elliott

I’m not seeing a problem in all three situations so far.

Three being:

single host multicast from list/search deploy multicast
group multicast
Named session multicast.

Can you provide the multicast logs for say the last 500 lines?

rbaldwin

@Tom-Elliott

[10-26-16 1:42:32 pm] Interface Ready with IP Address: 10.67.16.19
[10-26-16 1:42:32 pm] Interface Ready with IP Address: 10.67.55.10
[10-26-16 1:42:32 pm] * Starting MulticastManager Service
[10-26-16 1:42:32 pm] * Checking for new items every 10 seconds
[10-26-16 1:42:32 pm] * Starting service loop
[10-26-16 1:42:32 pm] * No tasks found!

The last line repeating 156 times. repeating every 10 seconds

Tom Elliott

@rbaldwin Do you have more than one node?

rbaldwin

@Tom-Elliott

no, this is a single server installation.

Here is some information that you might find handy:

When I create a multi-cast task. I see a new entry added to multicastSessionsAssoc table in the DB

For example the below is me trying to create a single host multicast session(as a test)
select * from multicastSessionsAssoc;
±------±-----±----+
| msaID | msID | tID |
±------±-----±----+
| 43 | 0 | 70 |
±------±-----±----+
1 row in set (0.00 sec)

I see an entry added to tasks table in the DB

Nothing is added to the multicastSessions table

select * from multicastSessions;
Empty set (0.00 sec)

Tom Elliott

Can you try:

rm -rf /var/www/{html/},fog

Rerun the installer.

From within mysql run:

truncate table multicastSessions;
truncate table multicastSessionsAssoc;
delete from tasks where taskTypeID=8;

Then retry?

Wayne Workman

@Tom-Elliott I’d suggest doing the MySQL commands before deleting the web directory and reinstalling. That way when the multicast service restarts there’s literally nothing in the db about multicast from the git-go.

Also, there is this:
https://wiki.fogproject.org/wiki/index.php?title=Troubleshoot_Downloading_-_Multicast

rbaldwin

@Wayne-Workman
Thanks, I’ve looked at that, that’s what got me looking at the DB and what changes when I create a task. I assume when I create a multicast task, it should be added to the multicastSessions table and the task should show up in the WEB interface under Task Manager > “Active Multicast Tasks”

@Tom-Elliott
Okay, I did that. Same result.

So next I dropped the fog database entirly in mysql with “drop database fog;”

Removed the /var/www/html/fog folder with “rm -rf /var/www/{html/},fog”

and re-ran the installer.

Same result… When I create any multicast task, no multicast task is shown in Task Manager > Active Multicast task and if I boot the host it complains “Invalid Multicast session”

mysql> select * from multicastSessions
-> ;
Empty set (0.00 sec)

mysql> select * from multicastSessionsAssoc
-> ;
±------±-----±----+
| msaID | msID | tID |
±------±-----±----+
| 1 | 0 | 1 |
±------±-----±----+
1 row in set (0.00 sec)

Tom Elliott

@rbaldwin is the multicast task actually being started? From what it sounds like no

rbaldwin

@Tom-Elliott

I don’t think it is starting a multicast session. That the issue I’m attempting to resolve.

Tom Elliott

@rbaldwin WHat I mean, the log is refreshed showing a current timestamp?

rbaldwin

@Tom-Elliott

yes, if I put a tail on the log file I see new entries for “* No tasks found!”

rbaldwin

I uninstalled FOG as described here:
https://wiki.fogproject.org/wiki/?title=Uninstall_FOG

Reinstalled a Fresh install of:

Running Version 1.3.0-RC-16
SVN Revision: 5983

Still not Multicast task is created when I create a multicast task and when the host boot they complain: “Invalid Multicast session”

I can multicast in troubleshooting with udp-sender/udp-receiver as described in the “Testing Multicast” section of https://wiki.fogproject.org/wiki/index.php?title=Troubleshoot_Downloading_-_Multicast

Tom Elliott

@rbaldwin Do the hosts in question have an image assigned to them?

Wayne Workman

@Tom-Elliott said in Invalid Multicast session:

@rbaldwin Do the hosts in question have an image assigned to them?

I can test this at home tonight.

rbaldwin

@Tom-Elliott

yes, as I said earlier. I can image just fine if I use the deploy button. The issue is FOG isn’t starting udp-sender.

#grep udp-sender * -R
lib/fog/config.class.php: define(‘UDPSENDERPATH’, ‘/usr/local/sbin/udp-sender’);

#ls -lah /usr/local/sbin/udp-sender
-rwxr-xr-x 1 root root 65K Oct 27 12:14 /usr/local/sbin/udp-sender

ps -ef | grep udp-sender
root 28532 28390 0 13:11 pts/4 00:00:00 grep --color=auto udp-sender

Here are some pictures of the process.
http://imgur.com/a/1ZuuO

rbaldwin

Okay, I’m able to multicast with FOG using the version of the FOG software(1.3 RC 13) a colleague who could multicast has.

All the following were done as root, by first using the command “sudo -i” to become root.

I stopped all the FOG services.

Find the FOG services:
ls -lah /etc/init.d/FOG*

Stop Them:
service FOGImageReplicator stop
service FOGMulticastManager stop
service FOGPingHosts stop
service FOGScheduler stop
service FOGSnapinReplicator stop

I deleted the fog user
deluser fog

Uninstalled FOG using these instructions:
https://wiki.fogproject.org/wiki/?title=Uninstall_FOG

Finally I removed the /opt/fog folders and /etc/fog and /var/www/html/fog
rm -f -r /opt/fog
rm -f -r /etc/fog
rm -f -r /var/www/html/fog
Then I went to my git checkout path, where I have FOG git repo and checked out the commit a college has that can multicast.
cd /root/fogproject
git checkout 249cda491927fff27967cf9c5b8cb371b49837d0
Finally I reinstalled FOG
cd /root/fogproject/bin
./installfog.sh

When installation finished I now had FOG 1.3 RC13, I was able to create a multicast task. When the task was started it showed up on the Task Scheduler> Active Mutlicast task screen and as a process.

ps -ef | grep udp-sender

Output:
root 21694 18671 0 11:04 ? 00:00:00 sh -c cat /images/baseW5xxwin764vmw12Aug2016/d1p1.img | /usr/local/sbin/udp-sender --interface eth0 --min-receivers 1 --max-wait 600 --portbase 64654 --full-duplex --ttl 32 --nokbd --nopointopoint;
root 21696 21694 0 11:04 ? 00:00:00 /usr/local/sbin/udp-sender --interface eth0 --min-receivers 1 --max-wait 600 --portbase 64654 --full-duplex --ttl 32 --nokbd --nopointopoint

I then booted a host and the multicast session started without any issues.

Invalid Multicast session

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