Hi Folks,
We have a pair of VM's with their network interfaces connected into OVN
via the libvert
OVN hook. When doing live migration of these I see intense port
flapping, with each
chassis repeatably claiming the interfaces and and configuring them into
the southbound
DB/OVS, bringing the ports up/down constantly. I see the sequence of
events below
repeated up to a 100 times in a 50s period as the interfaces are
migrated from one chassis
to another.
Is this expected behavior, and what is the expected interface outage to
be during this
period? We have a heartbeat running with a 30s timeout, and that
intermittently
fails during these migrations.
On each chassis I see these sequence of events repeated 90 to 100 times:
in pcacn001, we see:
2024-07-21T09:36:35.262Z|304798|binding|INFO|Changing chassis for lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 from pcacn004 to pcacn001
2024-07-21T09:36:35.262Z|304799|binding|INFO|c7e2c10e-43f1-11ef-b3c5-a8698c171668:
Claiming 00:13:97:f3:ea:30 11.11.1.2
2024-07-21T09:36:35.265Z|304800|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 up in Southbound
2024-07-21T09:36:35.583Z|304806|binding|INFO|Removing lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 ovn-installed in OVS
2024-07-21T09:36:35.584Z|304809|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 ovn-installed in OVS
2024-07-21T09:36:35.746Z|304810|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 up in Southbound
2024-07-21T09:36:35.891Z|304811|binding|INFO|Changing chassis for lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 from pcacn004 to pcacn001
2024-07-21T09:36:35.891Z|304812|binding|INFO|c7e2c10e-43f1-11ef-b3c5-a8698c171668:
Claiming 00:13:97:f3:ea:30 11.11.1.2
2024-07-21T09:36:35.967Z|304813|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 up in Southbound
2024-07-21T09:36:36.189Z|304817|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 up in Southbound
2024-07-21T09:36:36.338Z|304818|binding|INFO|Removing lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 ovn-installed in OVS
2024-07-21T09:36:36.338Z|304818|binding|INFO|Removing lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 ovn-installed in OVS
2024-07-21T09:36:36.339Z|304819|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 down in Southbound
2024-07-21T09:36:36.422Z|304821|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 ovn-installed in OVS
2024-07-21T09:36:36.422Z|304822|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 up in Southbound And this moving
the port from pcacn004 to pcacn001 and setting the port down/up repeats
for 90-100 times until:
2024-07-21T09:37:23.945Z|306386|binding|INFO|Releasing lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 from this chassis. 49 seconds of
this. But also in pcacn004, we see it doing the same:
2024-07-21T09:36:35.253Z|301841|binding|INFO|Changing chassis for lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 from pcacn001 to pcacn004.
2024-07-21T09:36:35.253Z|301842|binding|INFO|c7e2c10e-43f1-11ef-b3c5-a8698c171668:
Claiming 00:13:97:f3:ea:30 11.11.1.2
2024-07-21T09:36:35.259Z|301843|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 down in Southbound
2024-07-21T09:36:35.452Z|301846|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 ovn-installed in OVS
2024-07-21T09:36:35.483Z|301850|binding|INFO|Removing lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 ovn-installed in OVS
2024-07-21T09:36:35.483Z|301851|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 down in Southbound
2024-07-21T09:36:35.562Z|301852|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 ovn-installed in OVS
2024-07-21T09:36:35.562Z|301853|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 up in Southbound
2024-07-21T09:36:35.743Z|301855|binding|INFO|Removing lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 ovn-installed in OVS
2024-07-21T09:36:35.743Z|301856|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 down in Southbound
2024-07-21T09:36:35.817Z|301857|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 ovn-installed in OVS
2024-07-21T09:36:35.817Z|301858|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 up in Southbound which continues
until it finally gets the port at:
2024-07-21T09:37:23.793Z|303182|binding|INFO|Changing chassis for lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 from pcacn001 to pcacn004.
2024-07-21T09:37:23.793Z|303183|binding|INFO|c7e2c10e-43f1-11ef-b3c5-a8698c171668:
Claiming 00:13:97:f3:ea:30 11.11.1.2
2024-07-21T09:37:23.857Z|303184|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 up in Southbound
2024-07-21T09:37:23.949Z|303185|binding|INFO|Claiming lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 for this chassis.
2024-07-21T09:37:23.949Z|303186|binding|INFO|c7e2c10e-43f1-11ef-b3c5-a8698c171668:
Claiming 00:13:97:f3:ea:30 11.11.1.2
2024-07-21T09:37:23.951Z|303187|binding|INFO|Setting lport
c7e2c10e-43f1-11ef-b3c5-a8698c171668 up in Southbound_______________________________________________
discuss mailing list
disc...@openvswitch.org
https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
