[feat/query] Update the Prometheus-related code to utilize the new annotations package, and adjust the signatures of the query methods to support context passing. #4319
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…for metric and label names, utilize the new annotations package, and adjust the signatures of the query methods to support context passing.
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xufeng0832
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This PR Update the Prometheus-related code to support UTF - 8 for metric and label names, utilize the new annotations package, and adjust the signatures of the query methods to support context passing.
What this PR does / why we need it:
When a dot (.) is included in metrics or labels, it will cause the query to fail and prevent the retrieval of metrics.
Fixes #
Special notes for your reviewer:
No
Does this PR introduce a user-facing and/or backwards incompatible change?:
No
Does this PR require updating code package or user-facing documentation?:
Yes.However, my English is not very good, and I need assistance with updating the documentation.