On Sat, Sep 28, 2019 at 8:50 PM Jeff Jirsa <jji...@gmail.com> wrote: [ ... ]
> 2) The 2TB guidance is old and irrelevant for most people, what you really > care about is how fast you can replace the failed machine > > You’d likely be ok going significantly larger than that if you use a few > vnodes, since that’ll help rebuild faster (you’ll stream from more sources on > rebuild) > > If you don’t want to use vnodes, buy big machines and run multiple Cassandra > instances in it - it’s not hard to run 3-4TB per instance and 12-16T of SSD > per machine We do this too. It's worth keeping in mind though that you'll still have a 12-16T blast radius in the event of a host failure. As the host density goes up, consider steps to make the host more robust (RAID, redundant power supplies, etc). -- Eric Evans john.eric.ev...@gmail.com --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org For additional commands, e-mail: user-h...@cassandra.apache.org
