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[release-1.3] Increase default FlowGCTimeout to 1h to prevent premature GC #2154

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Merged
kfswain merged 1 commit into from
Jan 20, 2026
+4 −2
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[release-1.3] Increase default FlowGCTimeout to 1h to prevent premature GC #2154

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6 changes: 4 additions & 2 deletions pkg/epp/flowcontrol/registry/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,9 @@ const (
defaultInitialShardCount int = 1
// defaultFlowGCTimeout is the default duration of inactivity after which an idle flow is garbage collected.
// This also serves as the interval for the periodic garbage collection scan.
defaultFlowGCTimeout time.Duration = 5 * time.Minute
// TODO:(https://github.com/kubernetes-sigs/gateway-api-inference-extension/issues/1982) revert to 5m once this GC
// race condition is properly resolved.
defaultFlowGCTimeout time.Duration = 1 * time.Hour
// defaultEventChannelBufferSize is the default size of the buffered channel for control plane events.
defaultEventChannelBufferSize int = 4096
)
Expand Down Expand Up @@ -127,7 +129,7 @@ type Config struct {

// FlowGCTimeout defines the interval at which the registry scans for and garbage collects idle flows.
// A flow is collected if it has been observed to be Idle for at least one full scan interval.
// Optional: Defaults to `defaultFlowGCTimeout` (5 minutes).
// Optional: Defaults to `defaultFlowGCTimeout` (1 hour).
FlowGCTimeout time.Duration

// EventChannelBufferSize defines the size of the buffered channel used for internal control plane events.
Expand Down
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