Forum Discussion
CirrusViewing GTM cluster and synchronization
I'm setting up 2 stand alone GTM's and did the gtm_add but what I don't understand it when I create a wide IP or a pool, it doesn't replicate to the other standalone device. Both devices can see each other and I can do a dig on a DNS entry I've created. I'm also curious about a command or window in the GUI that I can see the other GTM's I've added to the cluster? thanks in advance
8 Replies
VFBI was able to figure out the sync issue ( system >> configuration >> global traffic and enable sync button at the top). The looming question now is to actually see how many GTM's are sync'd together.
Cory_50405Noctilucent
Unfortunately, there isn't an easy way to do this with GTM sync groups. About the only thing you can do is check log messages to see which devices have joined/left the sync group. Messages would appear in /var/log/gtm and look like this:
gtmd[11895]: 011a5008:1: SNMP_TRAP: BIG-IP GTM /Common/ () joined sync group default
And you can see if synchronizations are occurring by checking /var/log/ltm and looking for messages like this one:
Mar 20 18:37:05 hostname notice mcpd[6608]: 010714a0:5: Sync of device group /Common/gtm to commit id 263 5992942257632424507 /Common/hostname 0 from device complete.
- VFBThanks Cory. It's a bit depressing not being able to see that to be honest. Even Cisco got that piece right with their GSS devices.
- Cory_50405The feature would certainly be well received if they decided to implement. We encountered an issue where a code upgrade caused GTM sync to break (think it was in 11.1). So with four GTM sync group members, something like this would have been great.
uniAltocumulus
To see what GTMs are connected, use
This will show all nodes in a working GTM clusternetstat -anp | grep "ESTABLISHED.*big3d"- VFBThanks uni. My device didn't like the command so I shortened it to netstat -anp | grep big3d and it worked like a charm
uni_87886Cirrostratus
To see what GTMs are connected, use
This will show all nodes in a working GTM clusternetstat -anp | grep "ESTABLISHED.*big3d"- VFBThanks uni. My device didn't like the command so I shortened it to netstat -anp | grep big3d and it worked like a charm
