Manage load balancers #
The list of created balancers is located inside the project - > Networking - > Load balancers
There you can:
- Configure a balancer (the “Overview” option)
- Rename a balancer (the “Edit” option)
- Delete a balancer
To do it, select the necessary action on the selector on the right from the balancer.
Go to your project - > Networking - > Load balancers -> select the Overview option on the selector on the right from the chosen balancer.
In the drop-down window, you can edit existing listeners in the load balancer and also add new ones.
You can edit and delete listeners. Select the appropriate option on the selector on the right from the listener.
In the editor, you can:
- Change the checking algorithm
- Parameters of connected instances (including verification address, port, and weight)
- Enable and disable instances from the load balancing pool
- Change the parameters in the Health Check section
Load Balancer statuses #
Status (UI) | Status (API) | Value |
---|---|---|
Healthy | Online | The balancer is working.All virtual machines in the pool accept requests. |
Unhealthy | Draining | A virtual machine from the pool does not accept new requests. |
Degraded | One or more balancer components have the "Error" status. | |
Error | The balancer doesn’t work.Virtual machines do not pass check requests.All virtual machines in the pool have the "Error" status. |
Performance analysis #
We have tested our load balancers to determine the performance of different flavors. The test results show the throughput - the number of requests per second (rps) a load balancer can handle under a number of simultaneous users’ requests for worker nodes that communicate through the load balancer considering that 95 percent of requests are handled within 1 ms.
Flavor | Throughput | Worker request | Percentile response time |
---|---|---|---|
1 vCPU - 2 GiB | 5k | 1 | 95th percentile is 1 ms |
2 vCPU - 4 GiB | 5k | 16 | 95th percentile is 1 ms |
4 vCPU - 8 GiB | 5k | 512 | 95th percentile is 1 ms |
8 vCPU - 16 GiB | 5k | 2048 | 95th percentile is 1 ms |