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Default to LIFO connection reuse (server_round_robin: false) so idle reaping works under sustained load #22

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micahjz wants to merge 3 commits into from
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Default to LIFO connection reuse (server_round_robin: false) so idle reaping works under sustained load #22

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6e59b2d
Add server_round_robin: false (LIFO) to base values so idle reaping w…
micahjz Jul 2, 2026
64d0bb5
Render server_round_robin into pgcat.toml [general] (template previou…
micahjz Jul 2, 2026
27c6a7e
Bump chart version 0.2.5 -> 0.2.6
micahjz Jul 2, 2026
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2 changes: 1 addition & 1 deletion charts/pgcat/Chart.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -5,4 +5,4 @@ maintainers:
- name: PostgresML
email: team@postgresml.org
appVersion: "1.3.0"
version: 0.2.5
version: 0.2.6
1 change: 1 addition & 0 deletions charts/pgcat/templates/secret.yaml
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Expand Up @@ -15,6 +15,7 @@ stringData:
connect_timeout = {{ .Values.configuration.general.connect_timeout }}
idle_timeout = {{ .Values.configuration.general.idle_timeout | int }}
server_lifetime = {{ .Values.configuration.general.server_lifetime | int }}
server_round_robin = {{ .Values.configuration.general.server_round_robin }}
server_tls = {{ .Values.configuration.general.server_tls }}
idle_client_in_transaction_timeout = {{ .Values.configuration.general.idle_client_in_transaction_timeout | int }}
healthcheck_timeout = {{ .Values.configuration.general.healthcheck_timeout }}
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9 changes: 9 additions & 0 deletions charts/pgcat/values.yaml
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Expand Up @@ -175,6 +175,15 @@ configuration:
# Max connection lifetime before it's closed, even if actively used.
server_lifetime: 86400000 # 24 hours

# Queue strategy for reusing idle server connections.
# false = LIFO (push_front on checkin): a small hot working set absorbs traffic
# while the cold tail ages out and is reaped by idle_timeout.
# true = FIFO / round-robin (push_back on checkin): every connection is rotated
# uniformly, so under sustained traffic no connection ever reaches idle_timeout
# and idle reaping never fires (pool stays pinned at pool_size).
# Set to false so idle_timeout-based reaping works under sustained load.
server_round_robin: false

# Whether to use TLS for server connections or not.
server_tls: false

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