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https://issues.apache.org/jira/browse/IGNITE-12804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17067970#comment-17067970
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Taras Ledkov commented on IGNITE-12804:
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Benchmark results: performance drop about 2%-3%:
sql-query benchmark (two runs):
|| master || patch ||
| 42786.50 0.00% | 41625.50 -2.71% |
| 42629.80 0.00% | 41557.00 -2.52% |
> SQL: ConnectionManager refactoring
> ----------------------------------
>
> Key: IGNITE-12804
> URL: https://issues.apache.org/jira/browse/IGNITE-12804
> Project: Ignite
> Issue Type: Task
> Components: sql
> Affects Versions: 2.8
> Reporter: Taras Ledkov
> Assignee: Taras Ledkov
> Priority: Major
> Fix For: 2.9
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> As of now ConnectionManager is a mess, really hard to understand. We should
> refactor it.
> Also ThreadLocal connection is a root cause of complicated behavior of local
> queries & map queries.
> I guess we have to use simple connection pool.
> For better performance connection pools will be striped by Thread ID.
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