On 16/08/15 19:07, Gustavo Brian wrote:
Hi,
I’m using one big table a my main storage for hotel prices and I’m running queries to get the best prices for specific dates and a couple of filters.
On one test I have a query scanning 30 millions rows in ~400ms but when I try to run several queries at a time monetdb hangs.
I’ve tried creating a funnel over the database but same result.
What’s the best approach if I need to run 150 queries per second ? The first question to answer to yourself is if the system CPU load is nearing 100%. Then assuming that your database itself fit in your RAM, there is no room left for more parallel processing without hurting yourself performancewise or 'freezing' the box.
Run experiments with 1,2,3,4,5,...., concurrent queries to determine the best level. regards, Martin
Thanks in advance,
*/Gustavo Brian/**//*
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