pvary commented on code in PR #10331:
URL: https://github.com/apache/iceberg/pull/10331#discussion_r1599575140
##########
flink/v1.19/flink/src/main/java/org/apache/iceberg/flink/sink/shuffle/DataStatisticsCoordinator.java:
##########
@@ -44,51 +46,76 @@
import org.slf4j.LoggerFactory;
/**
- * DataStatisticsCoordinator receives {@link DataStatisticsEvent} from {@link
- * DataStatisticsOperator} every subtask and then merge them together. Once
aggregation for all
- * subtasks data statistics completes, DataStatisticsCoordinator will send the
aggregated data
- * statistics back to {@link DataStatisticsOperator}. In the end a custom
partitioner will
- * distribute traffic based on the aggregated data statistics to improve data
clustering.
+ * DataStatisticsCoordinator receives {@link StatisticsEvent} from {@link
DataStatisticsOperator}
+ * every subtask and then merge them together. Once aggregation for all
subtasks data statistics
+ * completes, DataStatisticsCoordinator will send the aggregated data
statistics back to {@link
+ * DataStatisticsOperator}. In the end a custom partitioner will distribute
traffic based on the
+ * aggregated data statistics to improve data clustering.
*/
@Internal
-class DataStatisticsCoordinator<D extends DataStatistics<D, S>, S> implements
OperatorCoordinator {
+class DataStatisticsCoordinator implements OperatorCoordinator {
private static final Logger LOG =
LoggerFactory.getLogger(DataStatisticsCoordinator.class);
private final String operatorName;
+ private final OperatorCoordinator.Context context;
+ private final Schema schema;
+ private final SortOrder sortOrder;
+ private final int downstreamParallelism;
+ private final StatisticsType statisticsType;
+
private final ExecutorService coordinatorExecutor;
- private final OperatorCoordinator.Context operatorCoordinatorContext;
private final SubtaskGateways subtaskGateways;
private final CoordinatorExecutorThreadFactory coordinatorThreadFactory;
- private final TypeSerializer<DataStatistics<D, S>> statisticsSerializer;
- private final transient AggregatedStatisticsTracker<D, S>
aggregatedStatisticsTracker;
- private volatile AggregatedStatistics<D, S> completedStatistics;
- private volatile boolean started;
+ private final TypeSerializer<AggregatedStatistics>
aggregatedStatisticsSerializer;
+
+ private transient boolean started;
+ private transient AggregatedStatisticsTracker aggregatedStatisticsTracker;
+ private transient AggregatedStatistics completedStatistics;
DataStatisticsCoordinator(
String operatorName,
OperatorCoordinator.Context context,
- TypeSerializer<DataStatistics<D, S>> statisticsSerializer) {
+ Schema schema,
+ SortOrder sortOrder,
+ int downstreamParallelism,
Review Comment:
never mind, the scaling is a restart, so we will have a correct
`downstreamParallelism` at hand
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