akashorabek commented on code in PR #34078:
URL: https://github.com/apache/beam/pull/34078#discussion_r1973160613


##########
it/google-cloud-platform/src/test/java/org/apache/beam/it/gcp/bigquery/BigQueryIOST.java:
##########
@@ -296,11 +297,10 @@ private void 
generateDataAndWrite(BigQueryIO.Write<byte[]> writeIO) throws IOExc
                 .withSchema(schema)
                 
.withCustomGcsTempLocation(ValueProvider.StaticValueProvider.of(tempLocation)));
 
-    String runnerV2Experiment = "use_runner_v2";
     String experiments =
         configuration.writeMethod.equals(STORAGE_API_AT_LEAST_ONCE_METHOD)
-            ? runnerV2Experiment + ",streaming_mode_at_least_once"
-            : runnerV2Experiment;
+            ? GcpOptions.STREAMING_ENGINE_EXPERIMENT + 
",streaming_mode_at_least_once"
+            : GcpOptions.STREAMING_ENGINE_EXPERIMENT;

Review Comment:
   @damccorm The data duplication issue occurs even under small loads 
specifically in the exactly_once method when using runner_v2. Can we avoid 
using v2 for this method for now? I also noticed that in 
[BigQueryIOLT](https://github.com/apache/beam/blob/25977b8b05c103b832d92593602699eb86e7ab04/it/google-cloud-platform/src/test/java/org/apache/beam/it/gcp/bigquery/BigQueryIOLT.java#L188),
 we explicitly disabled v2, likely for the same reason.



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