noob-se7en commented on code in PR #17587:
URL: https://github.com/apache/pinot/pull/17587#discussion_r2760400439
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pinot-plugins/pinot-stream-ingestion/pinot-kafka-3.0/src/main/java/org/apache/pinot/plugin/stream/kafka30/KafkaStreamMetadataProvider.java:
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@@ -82,20 +114,46 @@ public int fetchPartitionCount(long timeoutMillis) {
@Override
public Set<Integer> fetchPartitionIds(long timeoutMillis) {
try {
- List<PartitionInfo> partitionInfos = _consumer.partitionsFor(_topic,
Duration.ofMillis(timeoutMillis));
- if (CollectionUtils.isEmpty(partitionInfos)) {
- throw new RuntimeException(String.format("Failed to fetch partition
information for topic: %s", _topic));
- }
- Set<Integer> partitionIds =
Sets.newHashSetWithExpectedSize(partitionInfos.size());
- for (PartitionInfo partitionInfo : partitionInfos) {
- partitionIds.add(partitionInfo.partition());
+ if (_partialPartitions) {
+ return new HashSet<>(_partitionIdSubset);
}
- return partitionIds;
+ return toPartitionIdSet(getPartitionInfos(timeoutMillis));
} catch (TimeoutException e) {
throw new TransientConsumerException(e);
}
}
+ @Override
+ public List<PartitionGroupMetadata> computePartitionGroupMetadata(String
clientId, StreamConfig streamConfig,
+ List<PartitionGroupConsumptionStatus> partitionGroupConsumptionStatuses,
int timeoutMillis)
+ throws IOException, java.util.concurrent.TimeoutException {
+ if (!_partialPartitions) {
+ return
StreamMetadataProvider.super.computePartitionGroupMetadata(clientId,
streamConfig,
+ partitionGroupConsumptionStatuses, timeoutMillis);
+ }
+ List<Integer> subset = _partitionIdSubset;
+ Map<Integer, StreamPartitionMsgOffset> partitionIdToEndOffset =
+ new HashMap<>(partitionGroupConsumptionStatuses.size());
+ for (PartitionGroupConsumptionStatus s :
partitionGroupConsumptionStatuses) {
+ partitionIdToEndOffset.put(s.getStreamPartitionGroupId(),
s.getEndOffset());
+ }
+ StreamConsumerFactory streamConsumerFactory =
StreamConsumerFactoryProvider.create(streamConfig);
+ List<PartitionGroupMetadata> result = new ArrayList<>(subset.size());
+ for (Integer partitionId : subset) {
+ StreamPartitionMsgOffset startOffset =
partitionIdToEndOffset.get(partitionId);
+ if (startOffset == null) {
+ try (StreamMetadataProvider partitionMetadataProvider =
+ streamConsumerFactory.createPartitionMetadataProvider(
+ StreamConsumerFactory.getUniqueClientId(clientId),
partitionId)) {
+ startOffset = partitionMetadataProvider.fetchStreamPartitionOffset(
+ streamConfig.getOffsetCriteria(), timeoutMillis);
+ }
+ }
+ result.add(new PartitionGroupMetadata(partitionId, startOffset));
Review Comment:
So `fetchPartitionIds` returns the same subset created in constructor
everytime.
But in this method we add new partitionIds, so behaviour seems inconsistent
across these methods.
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