[exporter/opensearch] Fix crash when sending_queue configured #45683
+86
−0
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fixes #45016
Description
Fix OpenSearch exporter crash when sending_queue only configures batch
Problem
The OpenSearch exporter crashes with the error num_consumers must be positive when sending_queue is configured with only the batch subsection and omits num_consumers and queue_size.
Solution
Added an Unmarshal() method that applies default values when these fields are not explicitly set:
num_consumers = 10 queue_size = 1000This follows the same defaulting pattern already used by the Elasticsearch exporter.
Testing
Added test case sending_queue_with_batch in config_test.go
All existing tests pass
Verified with race detection