Track: Technology for Developing Regions
Paper Title:
MyXDNS: A Request Routing DNS Server With Decoupled Server Selection
Authors:
Abstract:
This paper presents the architecture and the preliminary evaluation of
a request routing DNS server that decouples server selection
from the rest of DNS functionality. Our DNS server, which we refer to
as MyXDNS, exposes well-defined APIs for uploading an externally
computed server selection policy and for interacting with an external network
proximity service. With MyXDNS, researchers can explore their own
network proximity metrics and request routing algorithms without
having to worry about DNS internals. Furthermore, MyXDNS is based on
open-source MyDNS and is available to public. Stress-testing of MyXDNS
indicated that it achieves its flexibility at an acceptable cost: a
single MyXDNS running on a low-level server can process 3000 req/sec
with sub-millisecond response even in the presence of continuous
updates to server selection policy.
