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Artem Goncharov
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move elb docs to proper location Reviewed-by: OpenTelekomCloud Bot <None>
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What Do I Do If a Load Balancer Fails the Stress Test?
- Check the load of backend servers. If their CPU usage reaches 100%, applications may have performance bottlenecks.
- Check the incoming traffic. If the incoming traffic exceeds the maximum bandwidth set for the EIP, a large number of packets will be lost and requests will not be responded to, thereby affecting the load balancer's performance.
- Check the number of short connections in the time_wait state on the clients. A possible cause is that there are insufficient client ports.
- The listening queue backlog of the backend servers is full. As a result, the backend server does not respond to SYN ACK packets, and the client times out. You can increase the upper limit of the backlog by adjusting the net.core.somaxconn parameter.