Taras Ledkov created IGNITE-10598:
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Summary: 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
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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