[exporter/influxdb] FIXES precision

[StevenSeeger]

Description

Link to tracking issue

Fixes #43645

Testing

Testing to ensure that precision was correctly used

Documentation

Pointed to the Influx Docs for OSS Core 3 to help determine which precision to use for which endpoint

[linux-foundation-easycla]

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• ✅ login: StevenSeeger / name: Steven Seeger (0e59fba, 24c4aa5, 39a2f6e, 493f307)
• ✅ login: StevenSeeger / name: StevenSeeger (4c35cee, 67520fa)

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[paulojmdias]

Can you please add a changelog entry?

[StevenSeeger]

Can you please add a changelog entry?

Just pushed it - made the PR before checking out the contributing guidelines 🤦

[paulojmdias]

/label waiting-for-code-owners

[jacobmarble]

The public InfluxDB docs do not mention nanoseconds etc as valid precision values:

• https://docs.influxdata.com/influxdb3/core/write-data/http-api/v3-write-lp/
• https://docs.influxdata.com/influxdb3/core/write-data/http-api/compatibility-apis/

Telegraf (InfluxData's own agent) apparently doesn't support the v3 write endpoint yet:

• https://github.com/influxdata/telegraf/tree/master/plugins/outputs

I suggest we involve InfluxData engineers before merging this change. I'll contact them directly.

[StevenSeeger]

The public InfluxDB docs do not mention nanoseconds etc as valid precision values:

• https://docs.influxdata.com/influxdb3/core/write-data/http-api/v3-write-lp/

• https://docs.influxdata.com/influxdb3/core/write-data/http-api/compatibility-apis/

Probably should have used this api doc: https://docs.influxdata.com/influxdb3/enterprise/api/v3/#operation/PostV2Write

It specifies the nanosecond and other inputs, which gets output as an error from the otel collector when trying to post logs to the endpoint using the current default 'ns' parameter

[jacobmarble]

FWIW I've contacted some friends at InfluxData, and I'm sure we'll hear from them soon.