[jira] [Updated] (SPARK-58930) Import scg-observability crate into Spark Connect Gateway

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-58930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated SPARK-58930:
-----------------------------------
    Labels: pull-request-available  (was: )

> Import scg-observability crate into Spark Connect Gateway
> ---------------------------------------------------------
>
>                 Key: SPARK-58930
>                 URL: https://issues.apache.org/jira/browse/SPARK-58930
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Connect
>    Affects Versions: connect-gateway-0.1.0
>            Reporter: L. C. Hsieh
>            Assignee: L. C. Hsieh
>            Priority: Major
>              Labels: pull-request-available
>
> Part of importing the Spark Connect Gateway reference implementation into
> apache/spark-connect-gateway as a series of small, bottom-up PRs.
> This adds the scg-observability crate — the metrics, tracing, and admin surface
> for the gateway:
>   
>   - Prometheus metrics for the gateway
>   - Distributed tracing — an OpenTelemetry exporter with W3C traceparent
>     propagation 
>   - An admin HTTP server exposing /metrics, /healthz, and /readyz
>   
> scg-observability is a leaf crate (no internal dependencies), so it compiles and
> tests on its own (8 unit tests). It is appended to the workspace members list,
> and is consumed later by the proxy and gateway crates.



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