Re:MongoDB's lead developer: Foursquare outage post mortem
by jasonwatkinspdx on Tuesday October 12, 2010 @06:53AM
(#1782926)
There's a reason I mentioned object inter-access times. To properly size storage you need to know your query distribution.
"It has 16GBs of RAM and handles around 5000 GBs worth of DBs. Due to a good RDBMS and intelligent caching and use of statistics, that server has a cache-hit ratio of 98%."
This may be your query distribution but it plainly is not everyone's.
"No amount of internet-argument can convince me that this goal is anything besides a pure waste of money."
If Jim Gray's published work doesn't convince you there's not really much left to discuss.
"It has 16GBs of RAM and handles around 5000 GBs worth of DBs. Due to a good RDBMS and intelligent caching and use of statistics, that server has a cache-hit ratio of 98%."
This may be your query distribution but it plainly is not everyone's.
"No amount of internet-argument can convince me that this goal is anything besides a pure waste of money."
If Jim Gray's published work doesn't convince you there's not really much left to discuss.