VIP switch causing connections that refuse to die

Michal Arbet michal.arbet at
Fri Feb 26 17:07:42 UTC 2021


I found  that keepalived VIP switch cause TCP connections  that refuse to
die on host where VIP was before  it was switched.

I filled a bug here ->
Fixed here ->
Video presentation of bug here ->

I was just curious and wanted to ask here in openstack-discuss :

If someone already seen this issue in past ?
If yes, do you tweak net.ipv4.tcp_retries2 kernel parameter ?
If no, how did you solve this ?

Thank you,
Michal Arbet ( kevko )
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