Enterprise Distributed Application Service:CreateApplicationScalingRule

Additional information about request parameters

public class ScalingRuleTriggerDTO {
    /**
     * The maximum number of instances. The value cannot exceed 1,000.
     */
    Integer maxReplicas;
    /**
     * The minimum number of instances. The value cannot be less than 0.
     */
    Integer minReplicas;

    /**
     * A list of triggers. Multiple triggers are supported.
     */
    List<Trigger> triggers;

    @Data
    @ToString
    @Builder
    @AllArgsConstructor
    @NoArgsConstructor
    public static class Trigger {
        /**
         * The type of the trigger. Valid values: cron (scheduled) and app_metric (application monitoring).
         */
        String type;

        /**
         * The name of the trigger. The name must start with a letter and can contain digits, letters, hyphens (-), and underscores (_). The name can be up to 30 characters long.
         */
        String name;

        /**
          The metadata of the trigger. This is a JSON map that contains string-to-string key-value pairs. The supported metadata varies based on the trigger type.
          1. cron
           {"period":"weekly","dryRun":"false","timerInDay":[{"atTime":"08:00","targetReplicas":2},{"atTime":"20:00","targetReplicas":1}],"timerInWeek":["Sat","Thu"]}
          * period: The interval. Valid values: daily, weekly, and monthly.
          * dryRun: If this is set to false, the system monitors and performs scaling activities. If this is set to true, the system only monitors the metrics.
          * timerInDay: The scaling cycle for each day. This parameter specifies when to start maintaining a specific number of replicas.
         * timerInWeek: The day of the week in a cron expression. For example, Fri.

         2. app_metric
         {\"metricName\":\"arms_appstat.incall_QPS\",\"dryRun\":\"false\",\"targetValAvg\":\"true\",\"targetAverageValue\":\"100\"}
         
         * metricName:
              * arms_appstat.incall_QPS (queries per second (QPS))
              * arms_appstat.incall_rt (response time)
              * arms_appstat.system_CPU (CPU usage)
              * arms_appstat.system_MEM (memory usage)
         * dryRun: This parameter has the same meaning as the dryRun parameter for cron triggers.
        * targetValAvg: Specifies whether to average the metric values. Set this to true for QPS and false for other metrics.
        * targetAverageValue/targetValue: Use targetAverageValue if targetValAvg is true. Use targetValue if targetValAvg is false.
        */
        String metadata;
    }
}