Re: IndexInterval Tuning

2011-04-05 Thread Chris Burroughs
On 04/05/2011 09:57 AM, Jonathan Ellis wrote: > On Tue, Apr 5, 2011 at 8:54 AM, Jonathan Ellis wrote: >> Adjusting indexinterval is unlikely to be useful on very narrow rows. >> (Its purpose is to make random access to _large_ rows doable.) > > Whoops, that's column_index_size_in_kb. > > I'd pla

Re: IndexInterval Tuning

2011-04-05 Thread Jonathan Ellis
On Tue, Apr 5, 2011 at 8:54 AM, Jonathan Ellis wrote: > Adjusting indexinterval is unlikely to be useful on very narrow rows. > (Its purpose is to make random access to _large_ rows doable.) Whoops, that's column_index_size_in_kb. I'd play w/ keycache before index_interval personally. (If you c

Re: IndexInterval Tuning

2011-04-05 Thread Jonathan Ellis
Adjusting indexinterval is unlikely to be useful on very narrow rows. (Its purpose is to make random access to _large_ rows doable.) On Mon, Apr 4, 2011 at 8:38 PM, Chris Burroughs wrote: > I have a case with very narrow rows.  As such I have a large row cache > that does nicely handles > 50% of

IndexInterval Tuning

2011-04-04 Thread Chris Burroughs
I have a case with very narrow rows. As such I have a large row cache that does nicely handles > 50% of requests. I think it's likely that the current tradeoff between page cache and row cache is reasonable. Using a key cache doesn't make sense in this instance. However, a third option is to adj