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Posted to issues@ignite.apache.org by "Iurii Gerzhedovich (Jira)" <ji...@apache.org> on 2024/05/15 07:51:00 UTC

[jira] [Updated] (IGNITE-21809) Sql. Improve intra-query parallelism

     [ https://issues.apache.org/jira/browse/IGNITE-21809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Iurii Gerzhedovich updated IGNITE-21809:
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    Description: 
At the moment, intra-query parallelism is achieved by splitting the query on several fragments in the place where distribution conversion is required, but the fragment itself is tied up to a single thread. Such a parallelization results in a low resource utilization by a single query, especially in case of huge fragments like the ones containing aggregation or colocated joins.

Let's investigate possible solutions and make a POC

  was:At the moment, intra-query parallelism is achieved by splitting the query on several fragments in the place where distribution conversion is required, but the fragment itself is tied up to a single thread. Such a parallelization results in a low resource utilization by a single query, especially in case of huge fragments like the ones containing aggregation or colocated joins.


> Sql. Improve intra-query parallelism
> ------------------------------------
>
>                 Key: IGNITE-21809
>                 URL: https://issues.apache.org/jira/browse/IGNITE-21809
>             Project: Ignite
>          Issue Type: Improvement
>          Components: sql
>            Reporter: Konstantin Orlov
>            Priority: Major
>              Labels: ignite-3
>
> At the moment, intra-query parallelism is achieved by splitting the query on several fragments in the place where distribution conversion is required, but the fragment itself is tied up to a single thread. Such a parallelization results in a low resource utilization by a single query, especially in case of huge fragments like the ones containing aggregation or colocated joins.
> Let's investigate possible solutions and make a POC



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