And if in DNS two CAGs are defined for the endpoint URL, and one of them is available, will there be a, noticeable, timeout trying the first/cached IP, before trying and connection to the next? Seeing if DNS Round Robin mechanism is suitable for a prospect.
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Agentless RUM sends results as beacons as async non-blocking operation to a defined endpoint. Endpoint is resolved by a DNS to a single IP address. For that reason a load balancer is recommended to ensure data is always transferred to a working Cluster AG.
If the endpoint is unavailable an event/data is lost. However, by no means it impacts on how website performs (just no monitoring data). Additionally for Mobile RUM there are retry attempts for 10 minutes. After that time monitoring data is lost.
Explaining that, DNS Round Robin will partially solve the issue - however you might observe gaps in data when an unreachable IP is returned by DNS.
Hi @Radoslaw S., I like to follow up on this, because I think there is a situation where an unreachable AG causes delay in the browser;