Prometheus plugin to honour parsed timestamp

[djjorjinho]

Parser is gathering the metric timestamp here:
https://github.com/influxdata/telegraf/blob/master/plugins/inputs/prometheus/parser.go#L89

But then it gets ignored and the current time is used instead:
https://github.com/influxdata/telegraf/blob/master/plugins/inputs/prometheus/prometheus.go#L148

Expected behavior:

When I expose a prometheus metric with a timestamp like the example:

# HELP test_metric Metric read from /tmp/node_exporter/textfile/test_metric.prom
# TYPE test_metric untyped
test_metric{label="value"} 1.0 1490802350

I expect the test output to be something like the example:

test_metric,label=value,url=http://localhost:3002/metrics value=1.0 1490802350000000000

Actual behavior:

The output timestamp uses the current time

test_metric,label=value,url=http://localhost:3002/metrics value=1.0 1490809413000000000

[danielnelson]

@djjorjinho Should be an easy fix now that you have it all figured out, do you want to make up a PR?

[djjorjinho]

I do, but was not posting from my personal PC, like you said it's a quick fix. PR coming up. On Wed, Mar 29, 2017, 9:21 PM Daniel Nelson <notifications@github.com> wrote: @djjorjinho <https://github.com/djjorjinho> Should be an easy fix now that you have it all figured out, do you want to make up a PR? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#2593 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAYJEd2ivSBUHdQv8uM_Whh2a-WLMfg2ks5rqr1SgaJpZM4MtUuS> .

[djjorjinho]

@danielnelson I've created #2596