通过API设置报警规则 - 传统型负载均衡CLB| 阿里云

背景信息

通过API设置报警规则的流程，如下图所示。

流程说明如下：

调用DescribeMetricMetaList查询云监控开放的SLB时序类指标监控项描述或直接查看监控项说明，详情参见监控报警项说明。
调用PutContact创建或修改报警联系人信息。
调用PutContactGroup创建或者修改报警联系人组。
调用PutResourceMetricRule接口对单个资源的性能指标设置阈值报警规则。
调用DescribeMetricRuleList接口查询报警规则列表。

本文以配置了TCP监听的lb-bp1rbwvouuyipbc***实例为例，创建后端异常ECS个数Critical、Warn和Info三种级别报警的阈值，超出阈值触发报警的规则。

DescribeMetricMetaList

调用DescribeMetricMetaList接口查询云监控开放的时序类指标监控项描述，详情请参见DescribeMetricMetaList。

将请求参数中数据命名空间Namespace的值设置为acs_slb_dashboard，其他参数保持默认值。
请求示例：
```
http(s)://[Endpoint]/?Action=DescribeMetricMetaList
&Namespace=acs_slb_dashboard
&<公共请求参数>
```

根据返回参数，查看负载均衡的时序类指标监控项。可以查看本次示例中使用的监控项Qps是否存在。

返回示例：

{
    "TotalCount": 53, 
    "RequestId": "789846B4-56FC-4681-998C-5B7DBDFBE28F", 
    "Resources": {
        "Resource": [
            {
                "MetricName": "ActiveConnection", 
                "Periods": "60,300", 
                "Description": "端口当前活跃连接数", 
                "Dimensions": "userId,instanceId,port,protocol", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"port\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "DropConnection", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId,port,protocol", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"port\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "DropPacketRX", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId,port,protocol", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"port\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "DropPacketTX", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId,port,protocol", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"port\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "DropTrafficRX", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId,port,protocol", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"bits/s\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"port\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "bits/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "DropTrafficTX", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId,port,protocol", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"bits/s\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"port\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "bits/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "GroupTrafficRX", 
                "Periods": "60", 
                "Description": "", 
                "Dimensions": "groupId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"bits/s\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"groupId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "bits/s", 
                "Statistics": "Average,Minimum,Maximum,Sum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "GroupTrafficTX", 
                "Periods": "60", 
                "Description": "", 
                "Dimensions": "groupId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"bits/s\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"groupId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "bits/s", 
                "Statistics": "Average,Minimum,Maximum,Sum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "HeathyServerCount", 
                "Periods": "60,300", 
                "Description": "当前后端健康ECS实例个数", 
                "Dimensions": "userId,instanceId,port,vip", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"port\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InactiveConnection", 
                "Periods": "60,300", 
                "Description": "端口当前非活跃连接数", 
                "Dimensions": "userId,instanceId,port,protocol", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"port\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceActiveConnection", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceDropConnection", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceDropPacketRX", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceDropPacketTX", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceDropTrafficRX", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"bits/s\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "bits/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceDropTrafficTX", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"bits/s\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "bits/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceInactiveConnection", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceMaxConnection", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceMaxConnectionUtilization", 
                "Periods": "60,300", 
                "Description": "最大连接数使用率", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"%\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "%", 
                "Statistics": "Average,Maximum,Minimum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceNewConnection", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceNewConnectionUtilization", 
                "Periods": "60,300", 
                "Description": "新建连接数使用率", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"%\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "%", 
                "Statistics": "Average,Maximum,Minimum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstancePacketRX", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstancePacketTX", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average,Minimum,Maximum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceQps", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/s\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/s", 
                "Statistics": "Average", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceQpsUtilization", 
                "Periods": "60,300", 
                "Description": "QPS使用率", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"%\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "%", 
                "Statistics": "Average,Maximum,Minimum", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceRt", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"ms\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "ms", 
                "Statistics": "Average", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceStatusCode2xx", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/Second", 
                "Statistics": "Average", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceStatusCode3xx", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/Second", 
                "Statistics": "Average", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceStatusCode4xx", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/Second", 
                "Statistics": "Average", 
                "Namespace": "acs_slb_dashboard"
            }, 
            {
                "MetricName": "InstanceStatusCode5xx", 
                "Periods": "60,300", 
                "Description": "", 
                "Dimensions": "userId,instanceId", 
                "Labels": "[{\"name\":\"alertUnit\",\"value\":\"Count/Second\"},{\"name\":\"minAlertPeriod\",\"value\":\"60\"},{\"name\":\"metricCategory\",\"value\":\"instanceId\"},{\"name\":\"is_alarm\",\"value\":\"true\"}]", 
                "Unit": "Count/Second", 
                "Statistics": "Average", 
                "Namespace": "acs_slb_dashboard"
            }
        ]
    }, 
    "Code": 200, 
    "Success": true
}

PutContact

调用PutContact创建报警联系人，如果已有报警联系人，也可以通过该接口修改报警联系人，详情请参见PutContact。

在请求参数中，设置报警联系人的姓名和联系方式。
本示例中设置以下参数，其他参数保持默认值：
- ContactName：自定义报警联系人姓名。
- Channels.Mail：Email地址。添加或者修改Email会收到一个激活链接，激活之后对应的Email才会被加到联系人中。
请求示例：
```
http(s)://[Endpoint]/?Action=PutContact
&ContactName=doctest
&Channels.Mail=test@example.com
&<公共请求参数>
```

根据返回参数，判断报警联系人是否创建成功。

返回示例：

{
    "RequestId": "50E26BC3-B211-4713-9608-EE8CE2EAB7E1", 
    "Code": "200", 
    "Success": true
}

PutContactGroup

调用PutContactGroup创建报警联系人组，如果已存在，也可以通过该接口修改报警联系人组，详情请参见PutContactGroup。

在请求参数中，设置报警联系人组的名称、报警联系人组描述和报警联系人姓名。
本示例中需要配置以下参数，其他参数保持默认值：
- ContactGroupName：自定义报警联系人组名称。
- Describe：报警联系人组描述信息。
- ContactNames：报警联系人名称。
请求示例：
```
http(s)://[Endpoint]/?Action=PutContactGroup
&ContactGroupName=doctestgroup
&ContactNames.1=doctest
&Describe=slb报警联系人组
&<公共请求参数>
```

根据返回参数，判断报警联系人组是否创建成功。

返回示例：

{
    "RequestId": "B8B88837-99A4-4F0D-B445-5E9C072D154D", 
    "Code": "200", 
    "Success": true
}

PutResourceMetricRule

调用PutResourceMetricRule接口对单个资源的性能指标设置阈值报警规则，详情请参见PutResourceMetricRule。

在请求参数中，设置本示例后端异常ECS个数的报警阈值。

本示例需要设置以下参数，其他参数可以保持默认值。


参数	参数说明
RuleId	自定义报警规则ID。
Namespace	设置负载均衡产品的数据命名空间acs_slb_dashboard。
MetricName	监控项名称，可根据DescribeMetricMetaList查询结果或监控报警项说明设置。本示例中后端异常ECS个数的监控项为UnhealthyServerCount。
Resources	需要报警的资源。负载均衡设置格式为`[{"instanceId":"lb-bp1rbwvouu******"}]`。
ContactGroups	报警联系人组，多个联系组之间用英文逗号分隔。
Escalations.Critical.Statistics	Critical级别报警统计方法，包括以下选项： Average：平均值。 Minimum：最小值。 Maximum：最大值。
Escalations.Critical.ComparisonOperator	Critical级别阈值比较符。您可以根据以下规则进行选择： GreaterThanOrEqualToThreshold：大于等于。 GreaterThanThreshold：大于。 LessThanOrEqualToThreshold：小于等于。 LessThanThreshold：小于。 NotEqualToThreshold：不等。 GreaterThanYesterday：同比昨天时间上涨。 LessThanYesterday：同比昨天时间下降。 GreaterThanLastWeek：同比上周同一时间上涨。 LessThanLastWeek：同比上周同一时间下降。 GreaterThanLastPeriod：环比上周期上涨。 LessThanLastPeriod：环比上周期下降。
Escalations.Critical.Threshold	Critical级别报警阈值。
Escalations.Critical.Times	Critical级别报警重试次数。
Escalations.Warn.Statistics	Warn级别报警统计方法，包含以下选项： Average：平均值。 Minimum：最小值。 Maximum：最大值。
Escalations.Warn.ComparisonOperator	Warn级别阈值比较符。您可以根据以下规则进行选择： GreaterThanOrEqualToThreshold：大于等于。 GreaterThanThreshold：大于。 LessThanOrEqualToThreshold：小于等于。 LessThanThreshold：小于。 NotEqualToThreshold：不等。 GreaterThanYesterday：同比昨天时间上涨。 LessThanYesterday：同比昨天时间下降。 GreaterThanLastWeek：同比上周同一时间上涨。 LessThanLastWeek：同比上周同一时间下降。 GreaterThanLastPeriod：环比上周期上涨。 LessThanLastPeriod：环比上周期下降。
Escalations.Warn.Threshold	Warn级别报警阈值。
Escalations.Warn.Times	Warn级别报警重试次数。
Escalations.Info.Statistics	Info级别报警统计方法，包含以下选项： Average：平均值。 Minimum：最小值。 Maximum：最大值。
Escalations.Info.ComparisonOperator	Info级别阈值比较符。您可以根据以下规则进行选择： GreaterThanOrEqualToThreshold：大于等于。 GreaterThanThreshold：大于。 LessThanOrEqualToThreshold：小于等于。 LessThanThreshold：小于。 NotEqualToThreshold：不等于。 GreaterThanYesterday：同比昨天时间上涨。 LessThanYesterday：同比昨天时间下降。 GreaterThanLastWeek：同比上周同一时间上涨。 LessThanLastWeek：同比上周同一时间下降。 GreaterThanLastPeriod：环比上周期上涨。 LessThanLastPeriod：环比上周期下降。
Escalations.Info.Threshold	Info级别报警阈值。
Escalations.Info.Times	Info级别报警重试次数。

请求示例：

http(s)://[Endpoint]/?Action=PutResourceMetricRule
&ContactGroups=doctestgroup
&MetricName=UnhealthyServerCount
&Namespace=acs_slb_dashboard
&Resources=[{"instanceId":"lb-bp1rbwvouuyipbc*****}]
&Escalations.Critical.Statistics=Minimum
&Escalations.Critical.ComparisonOperator=GreaterThanOrEqualToThreshold
&Escalations.Critical.Threshold=100
&Escalations.Warn.Statistics=Average
&Escalations.Warn.ComparisonOperator=GreaterThanOrEqualToThreshold
&Escalations.Warn.Threshold=30
&Escalations.Info.Statistics=Maximum
&Escalations.Info.ComparisonOperator=30
&Escalations.Info.Threshold=30
&<公共请求参数>

根据返回示例的Success值，判断报警规则是否创建成功。

返回示例：

{
    "Message":"",
    "RequestId":"C65B0B84-DDE8-4DCA-8663-5836773102D4",
    "Success":true,
    "Code":"200"
}

DescribeMetricRuleList

调用DescribeMetricRuleList接口查询报警规则列表，详情请参见DescribeMetricRuleList。

在请求参数中，设置负载均衡的数据命名空间和报警项，查看报警项详细信息。
本示例需要设置以下参数，其他参数可以保持默认值：
- Namespace：设置负载均衡的数据命名空间acs_slb_dashboard。
- MetricName：设置需要查询的报警项。
请求参数：
```
http(s)://[Endpoint]/?Action=DescribeMetricRuleList
&Namespace=acs_slb_dashboard
&MetricName=UnhealthyServerCount
&<公共请求参数>
```

根据返回参数，查看本示例中设置的报警项详情。

返回示例：

{
    "RequestId": "F249E314-1763-4662-A347-BD54C739191E", 
    "Total": 1, 
    "Alarms": {
        "Alarm": [
            {
                "GroupName": "", 
                "SilenceTime": 86400, 
                "ContactGroups": "doctestgroup", 
                "NoEffectiveInterval": "", 
                "MailSubject": "${serviceType}-${metricName}-${levelDescription}通知（${dimensions}）", 
                "RuleId": "123", 
                "SourceType": "METRIC", 
                "Period": 300, 
                "Dimensions": "", 
                "EffectiveInterval": "", 
                "Namespace": "acs_slb_dashboard", 
                "AlertState": "INSUFFICIENT_DATA", 
                "GroupId": "", 
                "MetricName": "UnhealthyServerCount", 
                "EnableState": true, 
                "Escalations": {
                    "Critical": { }, 
                    "Info": {
                        "ComparisonOperator": "LessThanThreshold", 
                        "Times": 3, 
                        "Statistics": "Average", 
                        "Threshold": "3"
                    }, 
                    "Warn": {
                        "ComparisonOperator": "GreaterThanThreshold", 
                        "Times": 3, 
                        "Statistics": "Average", 
                        "Threshold": "10"
                    }
                }, 
                "Webhook": "", 
                "Resources": "[{\"instanceId\":\"lb-bp1rbwvouuyipbc*****\"}]", 
                "RuleName": "UnhealthyServerCount"
            }
        ]
    }, 
    "Code": "200", 
    "Success": true
}

前提条件

背景信息

DescribeMetricMetaList

PutContact

PutContactGroup

PutResourceMetricRule

DescribeMetricRuleList