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负载均衡

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均衡算法选择与权重配置示例
配置 WAF 对负载均衡的监听域名进行 Web 安全防护
配置 IAP 对负载均衡的域名和路径的web访问进行身份验证
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UDP 健康检查出现异常
API 文档
History
Introduction
API Category
Instance APIs
Listener APIs
Backend Service APIs
Target Group APIs
Redirection APIs
Other APIs
Classic CLB APIs
Load Balancing APIs
Making API Requests
Data Types
Error Codes
CLB API 2017
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词汇表

API Category

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最后更新时间: 2025-11-25 10:10:50

Instance APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeLoadBalancers Queries the list of CLB instances 20
CloneLoadBalancer Clones a CLB instance 20
CreateLoadBalancer Purchases a CLB instance 20
ModifyLoadBalancerAttributes Modifies the attributes of a CLB instance 20
DescribeLoadBalancersDetail Queries CLB instance details 20
DeleteLoadBalancer Deletes one or more CLB instances 20

Listener APIs

API Name Feature Frequency Limit (maximum requests per second)
CreateListener Creates a CLB listener 20
CreateRule Creates a forwarding rule for a layer-7 CLB listener 20
DescribeListeners Queries the list of CLB listeners 20
ModifyListener Modifies the attributes of a CLB listener 20
ModifyRule Modifies a forwarding rule of a CLB listener 20
ModifyDomain Modifies a domain name of a layer-7 forwarding rule 20
ModifyDomainAttributes Modifies the domain name-level attributes of a layer-7 listener's forwarding rule 20
DeleteListener Deletes a CLB listener 20
DeleteLoadBalancerListeners Deletes multiple CLB listeners 20
DeleteRule Deletes a rule from a layer-7 CLB listener 20

Backend Service APIs

API Name Feature Frequency Limit (maximum requests per second)
RegisterTargets Binds real servers to a listener 20
BatchRegisterTargets Binds CVM instances or ENIs in batches 20
ModifyTargetPort Modifies the port of a real server bound to a listener 20
ModifyTargetWeight Modifies the forwarding weight of a real server bound to a listener 20
BatchModifyTargetTag Modifies tags of real servers bound to listeners in batches 20
BatchModifyTargetWeight Batch modifies the forwarding weights of real servers bound to a listener 20
DeregisterTargets Unbinds real servers from a CLB listener 20
BatchDeregisterTargets Unbinds layer-4/layer-7 real servers in batches 20
DescribeTargetHealth Queries the health check status of a real server of a CLB instance 20
DeregisterFunctionTargets Unbinding an SCF function from a forwarding rule 20
DescribeCrossTargets Queries information of CVMs and ENIs that use cross-region binding 2.0 20
ModifyFunctionTargets Modifies the cloud functions associated with a forwarding rule 20
RegisterFunctionTargets Binds an SCF function with a forwarding rule 20
DescribeTargets Queries the list of CVM instances bound to a CLB instance 20

Target Group APIs

API Name Feature Frequency Limit (maximum requests per second)
CreateTargetGroup Creates a target group 20
DeleteTargetGroups Deletes target groups 20
DescribeTargetGroups Queries target group information 20
DescribeTargetGroupList Gets a target group list 20
ModifyTargetGroupAttribute Modifies target group attribute 20
AssociateTargetGroups Binds target groups to rules 20
DisassociateTargetGroups Unbinds target groups from a rule 20
RegisterTargetGroupInstances Registers servers to a target group 20
DeregisterTargetGroupInstances Unbinds a server from a target group 20
DescribeTargetGroupInstances Gets servers bound to a target group 20
ModifyTargetGroupInstancesPort Modifies server ports of a target group in batches 20
ModifyTargetGroupInstancesWeight Modifies server weights of a target group in batches 20

Redirection APIs

API Name Feature Frequency Limit (maximum requests per second)
ManualRewrite Creates a redirection relationship between CLB forwarding rules manually 20
AutoRewrite Automatically generates a redirection relationship between CLB forwarding rules 20
DeleteRewrite Deletes the redirection relationship between CLB forwarding rules 20
DescribeRewrite Queries the redirection relationship between CLB forwarding rules 20

Other APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeClsLogSet Gets the CLB exclusive logset 20
CreateLoadBalancerSnatIps Adds SNAT IP 20
DeleteLoadBalancerSnatIps Deletes SNAT IP 20
DescribeLoadBalancerListByCertId Queries a CLB instance by the certificate ID 20
DescribeQuota Queries quotas 20
ModifyLoadBalancersProject Modifies the projects of CLB instances 20
ReplaceCertForLoadBalancers Replaces a certificate associated with a CLB instance 20
SetLoadBalancerClsLog Sets the CLS topic of a CLB instance 20
SetLoadBalancerSecurityGroups Configures security groups for a CLB instance 20
SetLoadBalancerStartStatus Enables or disables a CLB instance or listener 20
SetSecurityGroupForLoadbalancers Binds or unbinds a security group for multiple CLB instances 20
CreateClsLogSet Creates a CLB exclusive logset 20
CreateTopic Creates a topic 20
DescribeBlockIPTask Queries the execution status of an async IP blocking (blocklisting) task 20
DescribeLoadBalancerTraffic Queries CLB instances with high traffic under the current account 20
DescribeResources Queries the list of AZs and resources supported for the user in the current region 20
DescribeTaskStatus Queries the status of an async task 20
InquiryPriceCreateLoadBalancer Queries the price of creating a CLB instance. 20
InquiryPriceModifyLoadBalancer Queries the price of adjusting the specification of a CLB instance 20
InquiryPriceRenewLoadBalancer Queries the price to renew a prepaid CLB instance 20

Classic CLB APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeClassicalLBListeners Gets the list of classic CLB listeners 20
DescribeClassicalLBTargets Gets the list of real servers bound to a classic CLB 20
DescribeClassicalLBHealthStatus Gets the real server health status of a classic CLB 20
RegisterTargetsWithClassicalLB Binds real servers to a classic CLB 20
DeregisterTargetsFromClassicalLB Unbinds real servers from a classic CLB 20
DescribeClassicalLBByInstanceId Queries the classic CLB bound to a real server 20
MigrateClassicalLoadBalancers Upgrades Classic CLB instances to application CLB instances 20

Load Balancing APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeBlockIPList Queries the list of blocked IPs (blocklist) of a CLB instance 20
DescribeCustomizedConfigList Querying configuration details 20
DescribeIdleLoadBalancers Queries the list of CLB instances 20
DescribeLBListeners Queries CLB instances bound to the CVM or ENI 20
DescribeLBOperateProtect Query cloud load balancer operation protection 20
ModifyBlockIPList Modifies the client IP blocklist of a CLB instance 20
ModifyCustomizedConfig Modify personalized configuration 20
SetCustomizedConfigForLoadBalancer Creates or manages user-defined CLB configuration template 20
AddCustomizedConfig Add a personalized configuration 20
AssociateCustomizedConfig Associate a personalized configuration 20
DeleteCustomizedConfig Deletes a personalized configuration 20
DescribeCustomizedConfigAssociateList Queries the bound server or location in configurations 20
DescribeLoadBalancerOverview Queries the CLB instance status statistics 20
DisassociateCustomizedConfig Disassociate a personalized configuration 20
InquiryPriceRefundLoadBalancer Queries the refund amount of returning a CLB instance. 20
ModifyLoadBalancerSla Adjust the performance capacity specification of an instance 20

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