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Add patroni_maximum_lag_on_replica variable #569

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Feb 3, 2024
Merged

Add patroni_maximum_lag_on_replica variable #569

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8 changes: 4 additions & 4 deletions roles/confd/templates/haproxy.tmpl.j2
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Original file line number Diff line number Diff line change
Expand Up @@ -69,7 +69,7 @@ listen replicas
{% endif %}
maxconn {{ haproxy_maxconn.replica }}
option tcplog
option httpchk OPTIONS /replica
option httpchk OPTIONS /replica?lag={{ patroni_maximum_lag_on_replica }}
balance roundrobin
http-check expect status 200
default-server inter 3s fastinter 1s fall 3 rise 2 on-marked-down shutdown-sessions
Expand All @@ -91,7 +91,7 @@ listen replicas_direct
{% endif %}
maxconn {{ haproxy_maxconn.replica }}
option tcplog
option httpchk OPTIONS /replica
option httpchk OPTIONS /replica?lag={{ patroni_maximum_lag_on_replica }}
balance roundrobin
http-check expect status 200
default-server inter 3s fastinter 1s fall 3 rise 2 on-marked-down shutdown-sessions
Expand Down Expand Up @@ -145,7 +145,7 @@ listen replicas_async
{% endif %}
maxconn {{ haproxy_maxconn.replica }}
option tcplog
option httpchk OPTIONS /async
option httpchk OPTIONS /async?lag={{ patroni_maximum_lag_on_replica }}
balance roundrobin
http-check expect status 200
default-server inter 3s fastinter 1s fall 3 rise 2 on-marked-down shutdown-sessions
Expand All @@ -167,7 +167,7 @@ listen replicas_async_direct
{% endif %}
maxconn {{ haproxy_maxconn.replica }}
option tcplog
option httpchk OPTIONS /async
option httpchk OPTIONS /async?lag={{ patroni_maximum_lag_on_replica }}
balance roundrobin
http-check expect status 200
default-server inter 3s fastinter 1s fall 3 rise 2 on-marked-down shutdown-sessions
Expand Down
8 changes: 4 additions & 4 deletions roles/haproxy/templates/haproxy.cfg.j2
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -72,7 +72,7 @@ listen replicas
{% endif %}
maxconn {{ haproxy_maxconn.replica }}
option tcplog
option httpchk OPTIONS /replica
option httpchk OPTIONS /replica?lag={{ patroni_maximum_lag_on_replica }}
balance roundrobin
http-check expect status 200
default-server inter 3s fastinter 1s fall 3 rise 2 on-marked-down shutdown-sessions
Expand All @@ -96,7 +96,7 @@ listen replicas_direct
{% endif %}
maxconn {{ haproxy_maxconn.replica }}
option tcplog
option httpchk OPTIONS /replica
option httpchk OPTIONS /replica?lag={{ patroni_maximum_lag_on_replica }}
balance roundrobin
http-check expect status 200
default-server inter 3s fastinter 1s fall 3 rise 2 on-marked-down shutdown-sessions
Expand Down Expand Up @@ -154,7 +154,7 @@ listen replicas_async
{% endif %}
maxconn {{ haproxy_maxconn.replica }}
option tcplog
option httpchk OPTIONS /async
option httpchk OPTIONS /async?lag={{ patroni_maximum_lag_on_replica }}
balance roundrobin
http-check expect status 200
default-server inter 3s fastinter 1s fall 3 rise 2 on-marked-down shutdown-sessions
Expand All @@ -178,7 +178,7 @@ listen replicas_async_direct
{% endif %}
maxconn {{ haproxy_maxconn.replica }}
option tcplog
option httpchk OPTIONS /async
option httpchk OPTIONS /async?lag={{ patroni_maximum_lag_on_replica }}
balance roundrobin
http-check expect status 200
default-server inter 3s fastinter 1s fall 3 rise 2 on-marked-down shutdown-sessions
Expand Down
3 changes: 2 additions & 1 deletion vars/main.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -339,8 +339,9 @@ patroni_restapi_port: 8008
patroni_ttl: 30
patroni_loop_wait: 10
patroni_retry_timeout: 10
patroni_maximum_lag_on_failover: 1048576
patroni_master_start_timeout: 300
patroni_maximum_lag_on_failover: 1048576 # (1MB) the maximum bytes a follower may lag to be able to participate in leader election.
patroni_maximum_lag_on_replica: "100MB" # the maximum of lag that replica can be in order to be available for read-only queries.

# https://patroni.readthedocs.io/en/latest/SETTINGS.html?highlight=callbacks#dynamic-configuration-settings
patroni_callbacks: []
Expand Down