undefined | Better HN

0 pointsmaxander10y ago0 comments

You may be able to build an elaborate system of dummy network operations to test with, but this system may wind up with bugs that mask what would be errors in the real system. And how to you test against that? A dummy network to test the dummy network operations on? What if the dummy network contains bugs that make it behave significantly different from the real network, in error cases? How do you test for that?

Its turtles all the way down!

0 comments

ikeboy10y ago

You can test it against the actual network; if something goes wrong, you'll have downtime, but you'll be prepared to get it all back up.

Or, to test whether the "prevent errors from going to new places" works, temporarily configure the new places to ignore new configs; if the system works, no messages will be sent there; if the system doesn't work, they ignore the message and you learn about a bug.

j / k navigate · click thread line to collapse

0 comments

ikeboy10y ago

You can test it against the actual network; if something goes wrong, you'll have downtime, but you'll be prepared to get it all back up.

j / k navigate · click thread line to collapse