Batcher sizer is set to items even though the queue sizer is bytes

[bogdandrutu]

Component(s)

pkg/exporter/exporterhelper

What happened?

Describe the bug

Batcher sizer is set to items even though the queue sizer is bytes.

Steps to reproduce

    sending_queue:
      queue_size: 62914560  # 60MiB
      sizer: bytes
      block_on_overflow: true
      num_consumers: 64
      batch:
        min_size: 1048576   # 1MiB
        max_size: 16777216  # 16MiB
        flush_timeout: 1s

What did you expect to see?

The sent messages to not be larger than 16MB

What did you see instead?

The sent messages larger than 100MB

Collector version

v0.142.0

Environment information

Environment

OS: (e.g., "Ubuntu 20.04")
Compiler(if manually compiled): (e.g., "go 14.2")

OpenTelemetry Collector configuration

Log output

Additional context

No response

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[tank-500m]

Unconfigured fields are being affected by func NewDefaultQueueConfig(), causing the queue’s sizer not to be respected and the values to be set by items instead.

[mx-psi]

This situation is supposed to be tested here:

opentelemetry-collector/exporter/exporterhelper/internal/queuebatch/config_test.go

Lines 131 to 143 in a0cbea7

	path: "batch_set_nonempty_explicit_sizer.yaml",
	expectedCfg: func() configoptional.Optional[Config] {
	cfg := newBaseCfg()
	cfg.Get().Sizer = request.SizerTypeBytes
	cfg.Get().QueueSize = 2000
	cfg.Get().Batch = configoptional.Some(BatchConfig{
	FlushTimeout: 200 * time.Millisecond,
	// Sizer has been overridden by parent sizer
	Sizer: request.SizerTypeBytes,
	MinSize: 100,
	})
	return cfg
	},

Is this a custom exporter or are you using a publicly available exporter?