Document reuse_connections profile option for dbt-clickhouse#6378
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dhtclk merged 1 commit intoJun 16, 2026
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Adds the `reuse_connections` option (default `True`) to the dbt profile.yml configuration table. When set to `False`, dbt closes the underlying connection at the end of each model so the next model opens a fresh TCP connection — useful on multi-replica ClickHouse Cloud services where the load balancer routes by TCP connection and a long-lived pool would otherwise pin a `dbt run` to a single replica. Tracks ClickHouse/dbt-clickhouse#669 / ClickHouse/dbt-clickhouse#670.
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Docs PR opened: ClickHouse/mintlify-docs-dev#214 Added documentation for the |
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Summary
Documents the new
reuse_connectionsoption in the dbt-clickhouse adapter'sprofiles.ymlconfiguration table. Follow-up to ClickHouse/dbt-clickhouse#669 / ClickHouse/dbt-clickhouse#670.When set to
false, dbt closes the underlying connection at the end of each model so the next model opens a fresh TCP connection — useful on multi-replica ClickHouse Cloud services where the load balancer routes by connection and a long-lived pool would otherwise pin adbt runto a single replica. Default istrue, preserving current behaviour.Single-line addition next to the related
tcp_keepalivesetting indocs/integrations/data-ingestion/etl-tools/dbt/features-and-configurations.md.Checklist
Note
Low Risk
Documentation-only change with no runtime or configuration behavior changes in this repo.
Overview
Adds
reuse_connectionsto the dbt ClickHouseprofiles.ymlreference infeatures-and-configurations.md, placed aftertcp_keepalive.The entry documents default
True(reuse one connection across models) andFalse(close after each model for a new TCP connection), with guidance for multi-replica ClickHouse Cloud when the load balancer pins traffic by connection.Reviewed by Cursor Bugbot for commit d298f24. Bugbot is set up for automated code reviews on this repo. Configure here.