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https://issues.apache.org/jira/browse/RATIS-2389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18057187#comment-18057187
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Tsz-wo Sze commented on RATIS-2389:
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bq. ... the client might trigger retries ...
We should track using
[ClientInvocationId|https://github.com/apache/ratis/blob/master/ratis-common/src/main/java/org/apache/ratis/protocol/ClientInvocationId.java].
The retries will have a different ID.
> Implementing Opentelemetry Tracing in Apache Ratis
> --------------------------------------------------
>
> Key: RATIS-2389
> URL: https://issues.apache.org/jira/browse/RATIS-2389
> Project: Ratis
> Issue Type: New Feature
> Components: client, server
> Affects Versions: 3.3.0
> Reporter: Tak-Lon (Stephen) Wu
> Assignee: Tak-Lon (Stephen) Wu
> Priority: Minor
> Attachments: PoC-result-collected-spans.png,
> PoC-result-span-detail.png, PoC-result.png
>
>
> This proposal outlines the addition of OpenTelemetry support to Ratis. By
> instrumenting the full client-side request path, we can empower users and
> maintainers with the granular data necessary for both long-term performance
> optimization and proactive daily monitoring.
> * 1-pager proposal:
> [https://docs.google.com/document/d/1UKGVqOzkAXqUAJxOz1RHq6fIiO3xqV57eIqi-f9qdE4/edit?tab=t.0#heading=h.5a3u31wlm0n]
> * PoC: [https://github.com/taklwu/ratis/tree/opentelemetry0129]
> Subtasks
> * Define the Metadata Field: Modify RaftRpcMessage.proto to include an
> optional SpanContext field.
> * Add TraceUtil: Land the utility class in ratis-common based on the code
> you see in HBase.
> * Create the client span: Introduce the span supplier and CLIENT span hook.
> * Instrument GRPC on the Server: Start with the GRPC module as it is the
> most common transport. Instrument the onNext methods (or within the caller)
> to start/stop spans.
> * Come up with the user guide as part of the release.
>
> Preliminary results were captured by running filestore example.
> Reference
> 1. HBase Tracing with Opentelemetry, HBASE-22120
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