Comcast simulates trash network connections so you can build better systems ↦
Testing distributed systems under hard failures like network partitions and instance termination is critical, but it’s also important we test them under less catastrophic conditions because this is what they most often experience. Comcast is a tool designed to simulate common network problems like latency, bandwidth restrictions, and dropped/reordered/corrupted packets.
It works by wrapping up some system tools in a portable(ish) way. On BSD-derived systems such as OSX, we use tools like
ipfw
andpfctl
to inject failure. On Linux, we useiptables
andtc
. Comcast is merely a thin wrapper around these controls.
TFW you come up with the perfect name for your open source project ✨
Discussion
Sign in or Join to comment or subscribe