Replace the RemoteWriteQueue and WAL with the exporterhelper queue (sending_queue) in Prometheusremotewriteexporter

[Kaivalya1997]

Component(s)

exporter/prometheusremotewrite

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

The Prometheusremotewriteexporter currently does not use the more general sending_queue in the exporterhelper (https://github.com/open-telemetry/opentelemetry-collector/blob/main/exporter/exporterhelper/README.md) developed by the otel collector community for configuring in-memory or persistent queuing. Instead, it has a separate mechanism for setting up a persistent queue using the WAL config, which currently has some bugs (#15277). It also needs a different setting to configure parameters like queue size etc. in the RemoteWriteQueue config. It will instead be much easier to instead replace these two configs in the exporter by the exporterhelper sending_queue as it provides all these features as part of a single sending_queue config, and will also make the Prometheusremotewriteexporter settings conform with most other exporters which are using the exporterhelper queue.

Describe the solution you'd like

I propose that we replace the RemoteWriteQueue and WAL in the Prometheusremotewriteexporter config with exporterhelper.QueueSettings (sending_queue) so as to make the config better conform with most other exporters which are using the sending_queue. This will also remove the effort of separately maintaining the queuing related code for Prometheusremotewriteexporter, as the exporterhelper queue is maintained by the wider otel collector community.

Describe alternatives you've considered

No response

Additional context

I have made changes to the Prometheusremotewriteexporter code locally to use the exporterhelper queue instead of the RemoteWriteQueue and WAL and tested it. The changes do not require extensive code changes as exporterhelper.QueueSettings imports all the necessary code for the exporterhelper queue. The only changes needed would be in the config.go file to add some validations for the queue and some changes would be needed in the exporter.go file to remove the WAL related and RemoteWriteQueue related code, which should be straightforward.

[github-actions]

Pinging code owners:

• exporter/prometheusremotewrite: @Aneurysm9 @rapphil

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[github-actions]

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Pinging code owners:

• exporter/prometheusremotewrite: @Aneurysm9 @rapphil

See Adding Labels via Comments if you do not have permissions to add labels yourself.