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9

The direct answer to your question is Yes, it will make it worse. This is because one of your name servers not responding will cause resolve delays all the time for clients who attempt to resolve via the failed name server, whereas the current technique will only fail +- half the clients until you detect the VM is down + TTL seconds. Generally name servers ...


4

If I understand you correctly, you propose to have both distributed servers be the listed nameservers for the domain in question, each with an authoritative zonefile that contains a single A record pointing to the local server for the hostname on which your HTTPS service runs. If that's correct, then yes, I would expect this to work based on the round-robin ...


2

DNS load balancing used to be the "thing" to use, but with caching in common use today it's not as practical. In Windows, you have the "Network Load Balancer" which can assist with what you want to do by using multicast over a private network. You can still do this across providers with a VPN between the two. In Linux, you'd need to use something like ...


1

I wonder how many people answering these questions are actually running a large worldwide network of servers? Google is using round robin and my company has been using it for years. It can work pretty well, with some limitations. Yes, it needs to be augmented with other measures. The real key is to be willing to accept a hiccup or two if a server goes down. ...


1

Depends on source of your data. If data you want to sync is generated somewhere else (developers workstation, etc) and only distributed to clients via those 3 servers, I would recommend to push the data to each of three servers via rsync, or some CI tool like Jenkins, keeping the files on local disks of each server. If the data is generated and served by ...


1

You should really be talking with your IBM partner on cases like these, as they're the best ones to answer these kind of questions. That being said - the storwize v7000 is a dual-controller system. As long as you have dual paths (you mentioned DM multipathing) to each controller then a storage processor upgrade should reboot one controller at the time, ...


1

If you use multicast you can quickly and easily add new nodes to the cluster. Because of this I suspect that the developers may have never saw a need to allow dynamically adding nodes via UDP unicast. At least no "clean" way exist that I myself am aware of. However, you should be able to reload Corosync and apply the newly edited config files without ...



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