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new a95db2b9f4e Make topic exists error silent in Kafka 3.0 createTopic
(#17767)
a95db2b9f4e is described below
commit a95db2b9f4ecc2367bae552a30a2c56743bff4be
Author: Xiang Fu <[email protected]>
AuthorDate: Wed Feb 25 18:23:06 2026 -0800
Make topic exists error silent in Kafka 3.0 createTopic (#17767)
Handle TopicExistsException in KafkaServerStartable.createTopic by
returning silently when the topic already exists, matching the behavior
of kafka20 clients. This prevents quickstart from failing when topics
like flights-realtime already exist.
Co-authored-by: Cursor <[email protected]>
---
.../pinot/plugin/stream/kafka30/server/KafkaServerStartable.java | 5 +++++
1 file changed, 5 insertions(+)
diff --git
a/pinot-plugins/pinot-stream-ingestion/pinot-kafka-3.0/src/main/java/org/apache/pinot/plugin/stream/kafka30/server/KafkaServerStartable.java
b/pinot-plugins/pinot-stream-ingestion/pinot-kafka-3.0/src/main/java/org/apache/pinot/plugin/stream/kafka30/server/KafkaServerStartable.java
index 6d2a7b6f908..67c9c15befc 100644
---
a/pinot-plugins/pinot-stream-ingestion/pinot-kafka-3.0/src/main/java/org/apache/pinot/plugin/stream/kafka30/server/KafkaServerStartable.java
+++
b/pinot-plugins/pinot-stream-ingestion/pinot-kafka-3.0/src/main/java/org/apache/pinot/plugin/stream/kafka30/server/KafkaServerStartable.java
@@ -170,6 +170,11 @@ public class KafkaServerStartable implements
StreamDataServerStartable {
runAdminWithRetry(() ->
adminClient.createTopics(Collections.singletonList(newTopic)).all().get(),
"create topic: " + topic);
} catch (Exception e) {
+ if (e instanceof ExecutionException
+ && e.getCause() instanceof
org.apache.kafka.common.errors.TopicExistsException) {
+ // Topic already exists, skip creation silently
+ return;
+ }
throw new RuntimeException("Failed to create topic: " + topic, e);
}
}
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