[jira] [Updated] (IGNITE-10598) H2 ConnectionManager drop ThreadLocal logic

["Nikolay Izhikov (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-10598?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nikolay Izhikov updated IGNITE-10598:
-------------------------------------
    Labels: h2-limitation  (was: )

> H2 ConnectionManager drop ThreadLocal logic
> -------------------------------------------
>
>                 Key: IGNITE-10598
>                 URL: https://issues.apache.org/jira/browse/IGNITE-10598
>             Project: Ignite
>          Issue Type: Task
>          Components: sql
>    Affects Versions: 2.7
>            Reporter: Taras Ledkov
>            Assignee: Taras Ledkov
>            Priority: Major
>              Labels: h2-limitation
>
> Looks like we have to change H2 connection management after the patch IGNITE-9171 is applied. Caching H2 connection in ThreadLocal doesn't make sense because connections are shared between thread in fact.
> Drop ThreadLocal connection cache simplifies connection management. We haven't check thread state to close connection.
> The solution needs in good performance analysis & benchmark to be sure that contention on concurrent collection of H2 connections doesn't affect query performance.



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