Forum Discussion

Nimbostratus

Apr 21, 2015

Persistence entries aren't mirrored to the standby unit when using iRules

I have an iRule configured on a VIP. This iRule select Pool1 or Pool2 based on the HTTP_Host. I removed any defaultpool configuration on my VIP to make sure only my iRule select them. I also have a default persistence profile attach to my VIP, so I do not add a persistence command into my iRules

On my primary unit I'm able to see all the persistence created but on my standby unit I should see all the same record but with 0sec of age but I didn't see anything. The list is empty on my standby units.

I double-checked on my persistence profile and I have the "Mirror persistence" check box enable.

Is there anyting related with my iRules or it's a basic mirror persistence issue ?

Thanks

24 Replies

nitass_89166

Noctilucent

Apr 22, 2015

I have a cluster of 3 LTM but one of them was a test and the licence is expired. I don't use it anymore but haven't remove it from the cluster. I have a sync failed for that one but my 2 other one are flaged as green.

the expired unit is not a next active device, is it?

root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) show cm traffic-group

-----------------------------------------------------------
CM::Traffic-Group
Name                      Device            Status   Next
                                                     Active
-----------------------------------------------------------
traffic-group-1           ve11a.acme.local  standby  false
traffic-group-1           ve11b.acme.local  standby  true
traffic-group-1           ve11c.acme.local  active   false
traffic-group-local-only  -                 -        -

netadmindetail_
Nimbostratus
Apr 22, 2015
No It's not the next active device

nitass

Employee

Apr 22, 2015

the expired unit is not a next active device, is it?

root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) show cm traffic-group

-----------------------------------------------------------
CM::Traffic-Group
Name                      Device            Status   Next
                                                     Active
-----------------------------------------------------------
traffic-group-1           ve11a.acme.local  standby  false
traffic-group-1           ve11b.acme.local  standby  true
traffic-group-1           ve11c.acme.local  active   false
traffic-group-local-only  -                 -        -

netadmindetail_
Nimbostratus
Apr 22, 2015
No It's not the next active device

gsharri
Altostratus
Apr 22, 2015
Using tcpdump do you see a constant flow of traffic between the active/standby mirror addresses?

tcpdump -nni host and port 1029
EuropeanITCrow1
Cirrus
Jul 17, 2015
Hi,

Have you got an update on this? I'm facing the same issue but I think I can break it down on the Connection Mirroring:

I'm using the same configuration on a VS for ports 80 and 443. 80 has connection mirroring enabled, 443 has it disabled because there is a clientssl profile connected to it. Both use the same iRule and I've linked the universal persistence profile to this iRule (of course mirror persistence is enabled in the profile)

I can see persistence entries for port 80 on the standby system but not for the 443 configuration.

Regards Otto