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https://issues.apache.org/jira/browse/HDDS-14961?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HDDS-14961:
-----------------------------------
Release Note:
Changed
OpenTelemetry tracing settings can be configured in ozone-site.xml via
ozone.tracing.enabled, ozone.tracing.endpoint, ozone.tracing.sampler, and
ozone.tracing.span.sampling. (HDDS-14961)
hdds.tracing.enabled is deprecated; use ozone.tracing.enabled instead. The old
key still works in this release but will be removed in a future release.
When both ozone-site.xml and OTEL_* environment variables are set,
configuration keys take precedence over env vars.
Upgrade notes
No change required if you only use hdds.tracing.enabled and OTEL_* env vars —
existing setups keep working.
Rename hdds.tracing.enabled → ozone.tracing.enabled in ozone-site.xml.
Optional: move OTEL_EXPORTER_OTLP_ENDPOINT, OTEL_TRACES_SAMPLER_ARG, and
OTEL_SPAN_SAMPLING_ARG into the matching ozone.tracing.* keys for centralized
configuration.
Restart OM, SCM, DataNode, and clients after changing tracing settings.
Ensure sampler values are in the range 0.0–1.0; invalid values can prevent
tracing from starting.
> Introduce configuration for tracing
> -----------------------------------
>
> Key: HDDS-14961
> URL: https://issues.apache.org/jira/browse/HDDS-14961
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Sravani Revuri
> Assignee: Sravani Revuri
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.2.0
>
>
> Currently, OpenTelemetry tracing in {{TracingUtil}} relies on environment
> variables {{{}OTEL_EXPORTER_OTLP_ENDPOINT{}}},
> {{{}OTEL_TRACES_SAMPLER_ARG{}}}, and {{{}OTEL_SPAN_SAMPLING_ARG{}}}. which
> cannot be updated dynamically.
> Moving these to the below configs to enable dynamic update.
> * {{OTEL_EXPORTER_OTLP_ENDPOINT}} → {{ozone.tracing.endpoint}}
> * {{OTEL_TRACES_SAMPLER_ARG}} → {{ozone.tracing.sampler}}
> * {{OTEL_SPAN_SAMPLING_ARG}} → {{ozone.tracing.span.sampling}}
> * Update {{hdds.tracing.enabled}} to {{ozone.tracing.enabled}} to align with
> the new naming convention.
>
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