LCU费 网络型负载均衡 NLB 0.037 对于TCP流量，NLB 一个LCU包含：每秒800个新建TCP连接 100000个并发TCP连接（每分钟取样）每小时处理1GB的TCP请求和响应的流量数据 对于UDP流量，NLB 一个LCU包含：每秒400个新建UDP连接 50000个并发UDP...
本文介绍常见的Linux系统内核网络参数及常见问题的解决方案。注意事项 在修改内核参数前，您需要注意以下几点：从实际需求出发，尽量有相关数据的支撑，不建议您随意调整内核参数。了解参数的具体作用，需注意不同类型或...net.ipv4.tcp...
本文介绍常见的Linux系统内核网络参数及常见问题的解决方案。使用自助问题排查工具 阿里云的自助问题排查工具可以帮助您快速检测内核参数配置，并给出明确的诊断报告。单击 一键诊断 进入自助问题排查页面，并切换至目标...net.ipv4.tcp...
This topic describes the operations that can be performed by Edge Security Acceleration(ESA)in terms of TCP/UDP proxy.You can follow the instructions provided in this topic to configure the related settings.What is TCP/UDP...
This topic describes how to enable TCP selective acknowledgment(SACK)on a Linux Elastic Compute Service(ECS)instance.Note If TCP SACK is disabled on a Linux ECS instance,the network performance of the instance may be ...
表示当前发送的所有带RST标记的TCP包的数量，通过(NEW_tcp_tcp_retrans_segs-OLD_tcp_retrans_segs)/(NEW_tcp_out_segs-OLD_tcp_out_segs)可以计算TCP重传率。通常用于排查网络问题。doris_fe_meminfo{name="memory_total"} 该监控项为/...
v1 kind:Service metadata:name:tcp-echo labels:app:tcp-echo service:tcp-echo spec:ports:name:tcp port:9000-name:tcp-other port:9001 selector:app:tcp-echo-apiVersion:apps/v1 kind:Deployment metadata:name:tcp-echo spec:...
v1 kind:Service metadata:name:tcp-echo labels:app:tcp-echo service:tcp-echo spec:ports:name:tcp port:9000-name:tcp-other port:9001 selector:app:tcp-echo-apiVersion:apps/v1 kind:Deployment metadata:name:tcp-echo spec:...
This topic describes how to calculate the number of TCP connections in SAE.SAE uses the same logic as the ss command to calculate the number of TCP connections.You can run the ss-s command to verify the calculation.The ...
The TCP/UDP proxy feature provided by Edge Security Acceleration(ESA)is an acceleration service designed to improve both the performance and security of applications.This service targets applications that operate over the ...
If you want to optimize your network topology,scale out application servers,or throttle user traffic,you can use Traffic Management Center in the Service Mesh(ASM)console to smoothly migrate TCP traffic.This can ensure ...
If you want to optimize your network topology,scale out application servers,or throttle user traffic,you can use Traffic Management Center in the Service Mesh(ASM)console to smoothly migrate TCP traffic.This can ensure ...
If you want to optimize your network topology,scale out application servers,or throttle user traffic,you can use Traffic Management Center in the Service Mesh(ASM)console to smoothly migrate TCP traffic.This can ensure ...
You can enable TCP multiplexing to reduce the transmission delay of your services.This topic describes how to enable this feature.Notes This feature is available only for domain names that are accelerated over TCP.It is ...
TCP-RT是一款TCP监控工具，采用内核埋点技术识别TCP连接中的请求与响应，捕获请求接收及服务处理时间等相关信息。TCP-RT适用于单个连接上仅存在一个并发请求与响应的场景（例如HTTP/1.1、MySQL、Redis等服务），要求系统为Alibaba Cloud ...
本文为您介绍如何使用MQTT-TCP接入物联网平台。前提条件 启用TCP接入：2023年10月后创建的实例：设备使用TCP接入的安全风险非常高，新建的企业版实例默认关闭TCP接入方式。2023年10月前创建的实例：保持兼容，默认启用TCP接入。获取C Link ...
Count/s InstanceNewConnection userId and instanceId Average Dropped connections to an instance per second The number of dropped TCP and UDP connections to an NLB instance per second.Unit:Count/s InstanceDropConnection ...
By default,the TCP/IP TIME_WAIT state in the Linux kernel lasts for a fixed 60-second period.In certain high-load TCP scenarios,reducing this timeout can improve network performance.To enable this,Alibaba Cloud Linux 2...
本文主要介绍在Linux操作系统迁移时，迁移任务出错提示“TCP Wrappers configuration affects”信息时的问题描述、问题原因及其解决方案。问题描述 在SMC操作系统迁移到AnolisOS时，迁移任务出错提示“TCP Wrappers configuration affects...
This topic describes the causes of and solution to the following issue:A large number of"TCP:time wait bucket table overflow"error messages appear in the/var/log/messages file of a Linux Elastic Compute Service(ECS)...
出于安全考虑，阿里云默认封禁TCP 25端口出方向的访问流量，即您的阿里云云服务器无法通过TCP 25端口连接外部地址。背景信息 TCP 25端口的出方向封禁可能影响您通过TCP 25 端口连接第三方邮件服务商的SMTP服务器对外部发送邮件。如果您需要...
E-HPC优化器是性能监控与剖析平台，支持集群性能指标、查看集群性能历史记录、分析进程级的性能热点。您可以根据E-HPC优化器展示的性能大盘及性能数据优化集群性能。查看性能大盘 登录 弹性高性能计算控制台。在顶部菜单栏左上角处，选择...
概述 TCP健康检查是GTM对目标地址进行健康检查使用的一种网络协议。主要是监控IP地址的网络可达性、端口可用性、延时等指标，当监控IP地址或者端口出现异常时，自动屏蔽异常IP地址，当IP地址恢复正常时，自动取消屏蔽设置。设置方法 登录 ...
参数说明 参数 数据类型 方向 说明 fd uintptr_t 输入 TCP连接句柄 返回值说明 值 说明 0 操作失败=0 操作成功 HAL_TCP_Establish 接口原型 uintptr_t HAL_TCP_Establish(_IN_const char*host,_IN_uint16_t port);接口说明 根据指定的...
you can specify port 80 for a TCP listener and a UDP listener.However,you cannot specify the same port for a TCP listener and a TCP/SSL listener because both listeners listen for TCP requests.For example,you cannot specify...
This topic describes the issues that may occur in Shared Memory Communication(SMC)and how to resolve the issues.This...TCP Problem description When you use SMC instead of TCP to accelerate the TCP connection of an application...
您可以为ELB实例添加一个TCP监听，在ELB实例上转发来自客户端的TCP协议请求至后端服务器进行处理。前提条件 您已经创建ELB实例。具体操作，请参见 创建ELB实例。操作步骤 登录 ENS控制台。在 边缘负载均衡实例 管理页面，找到目标实例，...
If your application establishes connections with the origin server over Transmission Control Protocol(TCP)or User Datagram Protocol(UDP),you can enable the TCP/UDP proxy feature to improve application performance and ...
如果您需要在NLB实例上转发来自客户端的TCP协议请求，特别是在注重可靠性、对数据准确性要求高和速度可以相对较慢的场景中，如文件传输、发送或接收邮件和远程登录等，您可以为NLB实例添加一个TCP监听。前提条件 您已经创建 NLB 实例。具体...
本文介绍了在阿里云VPC内网执行性能测试的方法。相较于公网性能测试，VPC内网性能测试完全在您的VPC环境进行，无需暴露服务到公网，因此安全性更高，灵活性更强。限制条件 阿里云VPC内网压测目前存在以下限制：资源限制：VPC不同地域支持的...