Re: Limit on amount of CFs

2011-02-13 Thread Peter Schuller
> But when modeling the application I understand so far that ColumnFamily is > sort of "table with objects". In typical application there are lot of tables > so why is the mindset set towards having more or less 10 ColumnFamilies? > Even in this trivial example there are already 7 CFs > http://www.

Re: Limit on amount of CFs

2011-02-13 Thread Filip Nguyen
On 13.2.2011 11:40, Peter Schuller wrote: Reading in the documentation (specially on the tuning section) is clear the the number of Column Families affects the performance, in particular the amount of memory assigned to the heap. My question is: What's the hard limit on the number of CFs? Does a

Re: Limit on amount of CFs

2011-02-13 Thread Peter Schuller
> Reading in the documentation (specially on the tuning section) is clear the > the number of Column Families affects the performance, in particular the > amount of memory assigned to the heap. > My question is: What's the hard limit on the number of CFs? > Does anybody implemented an application w

Re: Limit on amount of CFs

2011-02-11 Thread buddhasystem
I asked a similar question (but didn't receive an answer). I'm trying to see if a large number of CFs might be beneficial. One thing I can think about is the size of extra storage needed for compaction -- obviously it will be smaller in case of many smaller CFs. -- View this message in context: