缓解io压力

pkg/config/config.go

@@ -169,7 +169,9 @@ type GatewayConfig struct {
 type WorkerConfig struct {
 	Role                         string `mapstructure:"role"`                            // Worker 运行角色：all、leader、consumer
 	InstanceName                 string `mapstructure:"instance_name"`                   // Worker 实例名称，用于多实例日志区分
+	PollingTotalMaxConcurrency   int    `mapstructure:"polling_total_max_concurrency"`   // 全部轮询总并发上限
 	AuditRetentionCleanupEnabled bool   `mapstructure:"audit_retention_cleanup_enabled"` // 是否启用审计日志物理清理
+	AuditArchiveTasksEnabled     bool   `mapstructure:"audit_archive_tasks_enabled"`     // 是否启用审计归档与日留存任务
 }
 
 // ApprovalConfig 审批新旧入口切换配置。
@@ -382,6 +384,10 @@ func (c *Config) Validate() error {
 		constants.WorkerRoleLeader:   true,
 		constants.WorkerRoleConsumer: true,
 	}
+	if c.Worker.PollingTotalMaxConcurrency < 1 || c.Worker.PollingTotalMaxConcurrency > constants.PollingMaxConcurrencyLimit {
+		return fmt.Errorf("invalid configuration: worker.polling_total_max_concurrency: must be 1-%d (current value: %d)", constants.PollingMaxConcurrencyLimit, c.Worker.PollingTotalMaxConcurrency)
+	}
+
 	if !validWorkerRoles[c.Worker.Role] {
 		return fmt.Errorf(
 			"invalid configuration: worker.role: invalid worker role (current value: %s, expected: %s, %s, %s)",