We are running 2 instances of InfluxDB 1.x community edition behind an AWS application load balancer. The load balancer shows all targets to be healthy at all times, yet several times an hour the client in one of our services throw an error “No host available”. The client is used in an api service that processes about 7 requests per second so there is some load on the servers.
I have looked through all available metrics on the influxdb instances but could not find a correlation with the error timestamps. I looked at the number of currently active connections but that did not correlate well with the error appearing.
Is there any metric I can look at to investigate this issue and get to the bottom of it?