[exporterhelper] Fix metric name preservation during request splitting #13238
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Resolve an issue in where metric names were lost when splitting objects. Updated logic now ensures all metric fields, including names, are retained across splitting operations. Added relevant tests to validate the fix.
bogdandrutu
reviewed
Jun 19, 2025
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Description
This PR fixes an issue in exporter/exporterhelper's sending_queue where metric names were lost during metricRequest splitting. Previously, when large batches of metrics were processed, the splitting logic in metric_batch.go could cause the name field of some metrics to disappear. This fix ensures that all metric fields are properly preserved when metricRequest objects are split.
Link to tracking issue
Fixes #13236