Abstract Wikipedia team/Observability/Tracing

Wikifunctions tracing is on Jaeger UI

To filter by request-id

• In the "Tags" field on the left-hand side, preface your request-id with guid:x-request-id=, i.e. guid:x-request-id=0c81d65b-85d8-9bf1-b316-72ea2c12c56b
• You can also view the log events of your request-id on Logstash per Trace event by expanding each span and looking at the 'Tags' section. Here, you will see the guid:x-request-id key whose value (your request-id) directly links to the event in Logstash.

Supplementary info:

• Tracing 101
• MediaWiki Telemetry Headers
• Propagating Trace Headers
• Jaeger documentation