![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
Rewriting hosts
Jul. 21st, 2009 10:03 pmI think I've finally cracked my monster task, the one that has been haunting me for months: to rewrite the hosts files for the main clusters.
A simple task you might think, except that each machine has 10 network interfaces, each machine has around four aliases per interface, and there are something 240 machines. And as if that wasn't simple enough, some of the aliases are redefined on different clusters, but each machine needs to know the principle hostname of every other machine regardless of cluster. Oh, and yes, the aliases (and potential duplicates) need to be defined in a very precise order or Breakage Will Occur.
Now all I have to do is spent the rest of the week applying relational algebra to my various different versions of the files to ensure that everything is correctly defined. What fun...
A simple task you might think, except that each machine has 10 network interfaces, each machine has around four aliases per interface, and there are something 240 machines. And as if that wasn't simple enough, some of the aliases are redefined on different clusters, but each machine needs to know the principle hostname of every other machine regardless of cluster. Oh, and yes, the aliases (and potential duplicates) need to be defined in a very precise order or Breakage Will Occur.
Now all I have to do is spent the rest of the week applying relational algebra to my various different versions of the files to ensure that everything is correctly defined. What fun...
