Does it support different TagKey for same component which is used in different pipeline?

[CatherineF-dev]

Both pipelinetrace/1 and trace/2 use batch processor. Could batch processor's metrics for these two pipelines have different tagkeys, so that these two metrics are not merged? Thanks!

I think it's something like processorTagKey = tag.MustNewKey(obsmetrics.ProcessorKey), but I couldn't use obsmetrics since it's an internal package when implementing a new processor.

receivers:
  nop:

processors:
  batch/1:
    timeout: 10s
    send_batch_size: 10000
    send_batch_max_size: 11000
  batch/2:
    timeout: 10s
    send_batch_size: 10000
    send_batch_max_size: 11000

exporters:
  nop:

service:
  pipelines:
    traces/1:
      receivers: [nop]
      processors: [batch/1]
      exporters: [nop]
    traces/2:
      receivers: [nop]
      processors: [batch/2]
      exporters: [nop]

[CatherineF-dev]

Solved. We should use exportCtx, err := tag.New(context.Background(), tag.Insert(processorTagKey, cfg.ID().String())) link.

Thanks opentelemetry. The design is really awesome!