[KAFKA-6648] Fetcher.getTopicMetadata() should return all partitions for each requested topic

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.11.0.2, 1.0.0
• Fix Version/s: 2.0.1, 2.1.0
• Component/s: clients
• Assignee: Radai Rosenblatt
• Reporter: Radai Rosenblatt
• Created: 13/Mar/18 17:16
• Updated: 03/Aug/18 17:47
• Resolved: 03/Aug/18 17:47

Description

if (!shouldRetry) {
   HashMap<String, List<PartitionInfo>> topicsPartitionInfos = new HashMap<>();
   for (String topic : cluster.topics())
      topicsPartitionInfos.put(topic, cluster.availablePartitionsForTopic(topic));
   return topicsPartitionInfos;
}

this leads to inconsistent behavior upstream, for example in KafkaConsumer.partitionsFor(), where if there's valid metadata all partitions would be returned, whereas if MD doesnt exist (or has expired) a subset of partitions (only the healthy ones) would be returned.

Issue Links

• links to: GitHub Pull Request #4679