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Ask questionsSupport timestamp option on prometheus import API

Is your feature request related to a problem? Please describe.

When I push metrics to /api/v1/import/prometheus, I want to specify a timestamp.

Describe the solution you'd like

/api/v1/import/prometheus?timestamp=1594370496905

Describe alternatives you've considered

add timestamps on prom file one by one

Additional context

our architecture:

IoT devices --> gateway --> pubsub --> worker --> VictoriaMetrics

IoT devices post prom formatted metrics (without timestamp) to gateway, and we push it to VictoriaMetrics through pubsub. Since there exist some latency on this path, I want to specify metrics timestamp by myself, instead of using current timestamp in VM import API layer.

VictoriaMetrics/VictoriaMetrics

Answer questions ledmonster

Thank you for quick implementation. I'll check the behavior hopefully on this weekend.

useful!

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