[PR] yaml_transform_test - add some debug logs and increase row count [beam]

Mon, 04 May 2026 12:47:56 -0700 


derrickaw opened a new pull request, #38367:
URL: https://github.com/apache/beam/pull/38367

   1. Seeing some flakey test for test_csv_to_json, so adding some debug logs 
when encountered again.
   2. Tried increasing input data to 10,000,000 rows to detect any splitting 
into multiple shards but nothing seen.
   3. Tried running 100 times, but didn't catch it.
   4. Tried PrismRunner instead of DirectRunner, but nothing caught.
   5. Added some debug logs to tell if maybe an empty file is created by chance.
   6. There could be a race condition where the system hasn't cleaned up the 
temporary file yet used during the pipeline and we globbed the output + "*" 
pattern, we caught that condition. So changing to "-*" to eliminate that 
possibility.
   
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