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OCPBUGS-61384: Fix scheduling for keepalived #5302

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OCPBUGS-61384: Fix scheduling for keepalived #5302

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13 changes: 12 additions & 1 deletion templates/arbiter/00-arbiter/on-prem/files/keepalived-keepalived.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -5,8 +5,19 @@ contents:
global_defs {
enable_script_security
script_user root
max_auto_priority -1
vrrp_garp_master_refresh 60

# These settings are fine tuning scheduling of the process. They are to
# avoid split-brain caused by not getting enough CPU to run vrrp fast enough.
# Values are coming from multiple online resources combined together, e.g.
# * https://groups.io/g/keepalived-users/topic/a_thread_timer_expired/94707560
# * https://forge.puppet.com/modules/puppet/keepalived/readme
max_auto_priority 99
vrrp_rt_priority 50
vrrp_no_swap
vrrp_rlimit_rttime 100000
bfd_rlimit_rttime 100000
checker_rlimit_rttime 100000
}

# These are separate checks to provide the following behavior:
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13 changes: 12 additions & 1 deletion templates/master/00-master/on-prem/files/keepalived-keepalived.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -5,8 +5,19 @@ contents:
global_defs {
enable_script_security
script_user root
max_auto_priority -1
vrrp_garp_master_refresh 60

# These settings are fine tuning scheduling of the process. They are to
# avoid split-brain caused by not getting enough CPU to run vrrp fast enough.
# Values are coming from multiple online resources combined together, e.g.
# * https://groups.io/g/keepalived-users/topic/a_thread_timer_expired/94707560
# * https://forge.puppet.com/modules/puppet/keepalived/readme
max_auto_priority 99
vrrp_rt_priority 50
vrrp_no_swap
vrrp_rlimit_rttime 100000
bfd_rlimit_rttime 100000
checker_rlimit_rttime 100000
}

# These are separate checks to provide the following behavior:
Expand Down
13 changes: 12 additions & 1 deletion templates/worker/00-worker/on-prem/files/keepalived-keepalived.yaml
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -5,8 +5,19 @@ contents:
global_defs {
enable_script_security
script_user root
max_auto_priority -1
vrrp_garp_master_refresh 60

# These settings are fine tuning scheduling of the process. They are to
# avoid split-brain caused by not getting enough CPU to run vrrp fast enough.
# Values are coming from multiple online resources combined together, e.g.
# * https://groups.io/g/keepalived-users/topic/a_thread_timer_expired/94707560
# * https://forge.puppet.com/modules/puppet/keepalived/readme
max_auto_priority 99
vrrp_rt_priority 50
vrrp_no_swap
vrrp_rlimit_rttime 100000
bfd_rlimit_rttime 100000
checker_rlimit_rttime 100000
}

# TODO: Improve this check. The port is assumed to be alive.
Expand Down