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[FLINK-34995] flink kafka connector source stuck when partition leade… #91

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[FLINK-34995] flink kafka connector source stuck when partition leade… #91

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8 changes: 5 additions & 3 deletions ...org/apache/flink/connector/kafka/source/enumerator/subscriber/PartitionSetSubscriber.java
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Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,7 @@ public Set<TopicPartition> getSubscribedTopicPartitions(AdminClient adminClient)

for (TopicPartition subscribedPartition : this.subscribedPartitions) {
if (topicMetadata.containsKey(subscribedPartition.topic())
&& partitionExistsInTopic(
&& partitionExistsInTopicAndValid(
subscribedPartition, topicMetadata.get(subscribedPartition.topic()))) {
existingSubscribedPartitions.add(subscribedPartition);
} else {
Expand All @@ -70,7 +70,9 @@ && partitionExistsInTopic(
return existingSubscribedPartitions;
}

private boolean partitionExistsInTopic(TopicPartition partition, TopicDescription topic) {
return topic.partitions().size() > partition.partition();
private boolean partitionExistsInTopicAndValid(
TopicPartition partition, TopicDescription topic) {
return topic.partitions().stream()
.anyMatch(p -> p.leader() != null && p.partition() == partition.partition());
}
}
5 changes: 4 additions & 1 deletion ...va/org/apache/flink/connector/kafka/source/enumerator/subscriber/TopicListSubscriber.java
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,10 @@ public Set<TopicPartition> getSubscribedTopicPartitions(AdminClient adminClient)
Set<TopicPartition> subscribedPartitions = new HashSet<>();
for (TopicDescription topic : topicMetadata.values()) {
for (TopicPartitionInfo partition : topic.partitions()) {
subscribedPartitions.add(new TopicPartition(topic.name(), partition.partition()));
if (partition.leader() != null) {
subscribedPartitions.add(
new TopicPartition(topic.name(), partition.partition()));
}
}
}

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8 changes: 5 additions & 3 deletions ...org/apache/flink/connector/kafka/source/enumerator/subscriber/TopicPatternSubscriber.java
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Original file line number Diff line number Diff line change
Expand Up @@ -53,9 +53,11 @@ public Set<TopicPartition> getSubscribedTopicPartitions(AdminClient adminClient)
(topicName, topicDescription) -> {
if (topicPattern.matcher(topicName).matches()) {
for (TopicPartitionInfo partition : topicDescription.partitions()) {
subscribedTopicPartitions.add(
new TopicPartition(
topicDescription.name(), partition.partition()));
if (partition.leader() != null) {
subscribedTopicPartitions.add(
new TopicPartition(
topicDescription.name(), partition.partition()));
}
}
}
});
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