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feat: Antigravity extra failover retries after default retries exhausted

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When default failover retries are exhausted, continue retrying with
Antigravity accounts only (up to 10 times, configurable via
GATEWAY_ANTIGRAVITY_EXTRA_RETRIES). Each extra retry uses a fixed
500ms delay. Non-Antigravity accounts are skipped during the extra
retry phase. Applied to all three endpoints: Gemini compat, Claude,
and Gemini native API paths.
This commit is contained in:
erio
2026-02-09 22:13:44 +08:00
parent 228aca9523
commit 18b591bc3b
4 changed files with 504 additions and 8 deletions
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4
backend/internal/config/config.go
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@@ -279,6 +279,9 @@ type GatewayConfig struct {
// Antigravity 429 fallback 限流时间（分钟），解析重置时间失败时使用
AntigravityFallbackCooldownMinutes int `mapstructure:"antigravity_fallback_cooldown_minutes"`
// 默认重试用完后，额外使用 Antigravity 账号重试的最大次数（0 表示禁用）
AntigravityExtraRetries int `mapstructure:"antigravity_extra_retries"`
// Scheduling: 账号调度相关配置
Scheduling GatewaySchedulingConfig `mapstructure:"scheduling"`
@@ -883,6 +886,7 @@ func setDefaults() {
viper.SetDefault("gateway.max_account_switches", 10)
viper.SetDefault("gateway.max_account_switches_gemini", 3)
viper.SetDefault("gateway.antigravity_fallback_cooldown_minutes", 1)
viper.SetDefault("gateway.antigravity_extra_retries", 10)
viper.SetDefault("gateway.max_body_size", int64(100*1024*1024))
viper.SetDefault("gateway.connection_pool_isolation", ConnectionPoolIsolationAccountProxy)
// HTTP 上游连接池配置（针对 5000+ 并发用户优化）