open-telemetry / open-telemetry/opentelemetry-java-instrumentation

ClickHouse Java client multiple endpoint support

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#19,306 3 comments 1 reaction 1 assignee View on GitHub

@jaydeluca is already working on this.

Since Jul 24, 2026.

contribution welcome enhancement
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Description

Is your feature request related to a problem? Please describe.

Today instrumentation code caches address of an endpoint https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/324d0f74b93f467dd91b8091924a47c7309d7ee1/instrumentation/clickhouse/clickhouse-client-v2-0.8/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/clickhouse/clientv2/v0_8/ClickHouseClientV2Instrumentation.java#L57

Recently this part was changed and multiple endpoints are possible. They are used in case of failure.
Please see this PR https://github.com/ClickHouse/clickhouse-java/pull/2880

Describe the solution you'd like
  • Context should have actual endpoint
  • Failure is reported as some metric or just number of retries.
Describe alternatives you've considered

No response

Additional context

No response

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