Serf by HashiCorp
Gossip-based Membership Serf relies on an efficient and lightweight gossip protocol to communicate with nodes. The Serf agents periodically exchange messages with each other in much the same way that a zombie apocalypse would occur: it starts with one zombie but soon infects everyone. In practice, the gossip is very fast and extremely efficient. Failure Detection Serf is able to quickly detect fai
Automatic `/etc/hosts` management with Serf - Kentaro Kuribayashi's blog
Problem In the cloud world, many hosts appear and vanish. Since we don't want to bother to manage some internal DNS service while keeping its availability, we have been updating /etc/hosts file periodically with cron and AWS API. There are, however, several problems in that way of updating /etc/hosts: It's far from real time There are many other components that need to be updated in a likely way;
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