ahmedabu98 commented on code in PR #31721:
URL: https://github.com/apache/beam/pull/31721#discussion_r1665884555


##########
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/BigQueryOptions.java:
##########
@@ -109,6 +109,26 @@ public interface BigQueryOptions
 
   void setNumStorageWriteApiStreamAppendClients(Integer value);
 
+  @Description(
+      "When using the STORAGE_API_AT_LEAST_ONCE write method with multiplexing 
(ie. useStorageApiConnectionPool=true), "
+          + "this option sets the minimum number of connections each pool 
creates. This is on a per worker, per region basis. "
+          + "Note that in practice, the minimum number of connections created 
is the minimum of this value and "
+          + "(numStorageWriteApiStreamAppendClients x num destinations).")
+  @Default.Integer(2)
+  Integer getMinConnectionPoolConnections();
+
+  void setMinConnectionPoolConnections(Integer value);

Review Comment:
   Will add a recommendation to increase this if running into performance issues



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