HotMigrate: Fatal: Someone killed me!

Issue

Hot migration fails between the hypervisors. This is the error we see in the logs:

Running: lookup_domain_by_name 
Options: "hp94nbuc4ty9pj" 
Remote Server: 37.200.114.1 
Fatal: Someone killed me! 
Executing Rollback... 
Remote Server: 37.200.114.1 
Running: tc qdisc del dev d0xvwxp1zx12vw root

Troubleshooting

root@test ~]# send_arp -i privatebond.333 172.16.0.4 
00:16:3e:fd:48:08 172.16.0.4 00:16:3e:fd:48:08 
*** buffer overflow detected ***: send_arp terminated 
======= Backtrace: ========= 
/lib64/libc.so.6(__fortify_fail+0x37)[0x7fa696206547] 
/lib64/libc.so.6(+0x100430)[0x7fa696204430] 

[root@test ~]# send_arp -i e2345678901234 172.16.0.4 
00:16:3e:fd:48:08 172.16.0.4 00:16:3e:fd:48:08 
*** buffer overflow detected ***: send_arp terminated 
======= Backtrace: ========= 
/lib64/libc.so.6(__fortify_fail+0x37)[0x7f2eae15d547] 
/lib64/libc.so.6(+0x100430)[0x7f2eae15b430] 
send_arp[0x400bd9] 

[root@test~]# send_arp -i e234567890123 172.16.0.4 
00:16:3e:fd:48:08 172.16.0.4 00:16:3e:fd:48:08 
sendto: No such device

[root@test ~]# send_arp -i privatebond.33 172.16.0.4 
00:16:3e:fd:48:08 172.16.0.4 00:16:3e:fd:48:08 
*** buffer overflow detected ***: send_arp terminated 
======= Backtrace: ========= 
/lib64/libc.so.6(__fortify_fail+0x37)[0x7fea32f7a547] 
/lib64/libc.so.6(+0x100430)[0x7fea32f78430]  

[root@test ~]# send_arp -i privatebond.3 172.16.0.4 
00:16:3e:fd:48:08 172.16.0.4 00:16:3e:fd:48:08 
sendto: No such device

As we can see from the examples above, the maximum length of the appliance NIC name on a HV can be 13 characters including a dot and the VLAN id.

Resolution

Avoid using more than 13 characters on your "$networkinterface.vlan xx.xx.xx.xx." 

Instead of privatebond.333 172.16.0.1, you could use bond1.333 172.16.0.1.

Cause

This happens due to the limitation in send_arp tool on length of NIC name.