mutianf commented on code in PR #34245:
URL: https://github.com/apache/beam/pull/34245#discussion_r2058994502
##########
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigtable/BigtableIO.java:
##########
@@ -631,6 +631,24 @@ public Read withMaxBufferElementCount(@Nullable Integer
maxBufferElementCount) {
.build();
}
+ /**
+ * Returns a new {@link BigtableIO.Read} that will skip the large rows
while reading. This
+ * function will switch the base BigtableIO.Reader class to using the
+ * BigtableReaderWithExperimentalOptions. If
+ *
+ * <p>Does not modify this object.
+ *
+ * <p>This is incompatible with withMaxBufferElementCount()
+ */
+ public Read withExperimentalSkipLargeRows(@Nullable Boolean skipLargeRows)
{
Review Comment:
Let's use the experimental flag because it's not final state we want to
have. The example code Igor mentioned:
https://github.com/apache/beam/blob/3b5a2b67bb64e8649116f395586f6265c463c759/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigtable/BigtableServiceFactory.java#L131
##########
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigtable/BigtableServiceImpl.java:
##########
@@ -174,10 +177,18 @@ public boolean start() throws IOException {
query.filter(Filters.FILTERS.fromProto(rowFilter));
}
try {
- stream =
- client
- .readRowsCallable(new BigtableRowProtoAdapter())
- .call(query, GrpcCallContext.createDefault());
+ if (bigtableReadOptions != null
+ &&
Boolean.TRUE.equals(bigtableReadOptions.getExperimentalSkipLargeRows())) {
+ stream =
+ client
+ .skipLargeRowsCallable(new BigtableRowProtoAdapter())
+ .call(query, GrpcCallContext.createDefault());
+ } else {
+ stream =
+ client
+ .readRowsCallable(new BigtableRowProtoAdapter())
+ .call(query, GrpcCallContext.createDefault());
+ }
Review Comment:
I think you can pass in a unary callable when creating the
BigtableReaderImpl instead of the client:
https://github.com/apache/beam/blob/3b5a2b67bb64e8649116f395586f6265c463c759/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigtable/BigtableServiceImpl.java#L653-L672
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