Re: How to speed up the answer time ?
Hi Jörg!
I am not sure if your question is if you can have several query nodes (mysqld) in a cluster in general (you can)
or if it is appropriate to run several mysqld processes on the same machine? If you you don't have a multi-CPU
machine, then running more than one mysqld probably costs more in context switching than you will gain in better
utilization of the cluster. Having several query nodes connect to a cluster (preferably from different machines)
normally gives you better utilization of the cluster since the mysqld often become the botlleneck. You can determine this
by looking at the CPU-load, if the mysqld is using a lot of CPU-time and the storage nodes (ndbd processes) are
using very little CPU-time you probably have more performance you can tap into through additional query nodes.
BR
-- Martin
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