HA HTTP client behavior

EventStoreDB
1

Hi All,

I am trying to understand how HA would work with the HTTP client API. The documentation states that:

you would just put a load balancer in front of the three nodes

But how the load balancer would know one of the three node is down or zombie? In that case, one out of 3 client requests will fail consistently until the node is back up. This would increase latency because of the client retries involved.

Is there a better way?

Thanks,

Julien

2

Most load balancers can detect downed nodes and stop routing to them

3

Is there load balancing (e.g. indeed.com boxcar style) anticipated in the TCP client?

4

Eg for reads? This would be pretty easy to setup now

5

Exactly, mostly for read load balancing.