Hello!

I think that you need a custom cache template (as per
https://apacheignite-sql.readme.io/docs/create-table ) with <property name=
"queryParallelism" value="32"/>
and then create all caches with TEMPLATE=templateName instead of
PARTITIONED.

You may also need to create indexes with PARALLEL 24.

Regards,
-- 
Ilya Kasnacheev


ср, 1 апр. 2020 г. в 14:11, Alessandro Fogli <[email protected]>:

> Hello,
>
> Thanks for your answer! I would like to run a TPC-H benchmark but none of
> the queries uses more than a single core. I used these indices:
>
> CREATE INDEX i_n_regionkey ON nation (n_regionkey);
> CREATE INDEX i_s_nationkey ON supplier (s_nationkey);
> CREATE INDEX i_c_nationkey ON customer (c_nationkey);
> CREATE INDEX i_ps_suppkey ON partsupp (ps_suppkey);
> CREATE INDEX i_ps_partkey ON partsupp (ps_partkey);
> CREATE INDEX i_o_custkey ON orders (o_custkey);
> CREATE INDEX i_l_orderkey ON lineitem (l_orderkey);
> CREATE INDEX i_l_suppkey_partkey ON lineitem (l_partkey, l_suppkey);
>
> Even when I changed the query thread pool size I was unable to use more
> than one thread for a single query.
> I'm attaching you the file with which I created the tables. Thanks
>
> Best,
> Alessandro
>
>
> Il giorno 1 apr 2020, alle ore 09:13, Ilya Kasnacheev <
> [email protected]> ha scritto:
>
> Hello!
>
> Can you please specify what is the operation that you want to parallelize?
> Are you sure it uses index?
>
> Please note that you may also need to increase query thread pool size
> since its threads are used up by parallelization.
>
> Regards,
> --
> Ilya Kasnacheev
>
>
> ср, 1 апр. 2020 г. в 05:22, Alessandro Fogli <[email protected]
> >:
>
>> Hello, I would like to know if there is a way to increase the level of
>> parallelism within a single node. The Default value appears to be one. I
>> already tried adding the property “<property name="queryParallelism"
>>  value="32"/>" in the xml file but it didn't work. Thanks
>>
>> Best regards,
>> Alessandro
>>
>
>

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