Something you're doing is creating a very large temporary table as
part of handling it's query. Usual culprit would be something doing a
full table join combined with an "order by" or "group by" which would
typically cause MySQL to need to create a temp table.
You should do EXPLAINs on your slow-running queries to find out which
ones are likely... If it is generating a 30gig file, I'd expect it
must be a very slow query.
Regards
Antony,
On 24 Oct 2011, at 08:03, Joey L wrote:
> On Mon, Oct 24, 2011 at 10:52 AM, Joey L <mjh2000@stripped> wrote:
>> I have a very large table - approx 3 or 4 gig in size.
>> When i initiate a process on my webpage - mysql starts to create a
>> temporary table in /tmp directory.
>> Is there a way i can create this file/table ahead of time so mysql
>> does not have to create it ?
>>
>> thanks
>> mjh
>>
>
> Sorry - it is 30 gig file .
>
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