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Satish edited comment on KAFKA-9609 at 3/2/20 7:56 PM: ------------------------------------------------------- [~sliebau] Is it possible to expose the Metrics so that we can clear the Topic related Metrics when the topic has been deleted? Can it be considered as an improvement story? was (Author: satish.gudl...@gmail.com): [~sliebau] Is it possible to expose the Metrics so that we can clear the Topic related Metrics when the topic has been deleted? Can you consider this as an improvement story? > Memory Leak in Kafka Producer > ----------------------------- > > Key: KAFKA-9609 > URL: https://issues.apache.org/jira/browse/KAFKA-9609 > Project: Kafka > Issue Type: Bug > Components: clients, producer > Affects Versions: 2.4.0 > Reporter: Satish > Assignee: Sönke Liebau > Priority: Major > > org.apache.kafka.clients.producer.internals.Sender adds Topic Metrics for > every topic that we are writing messages to but it never been cleaned up > until we close the producer. > This is an issue if we use single producer and have more number of Dynamic > topics (eg: ~ 500 topics per hour) and writing messages to them. As this > Metrics map is getting accumulated for every topic, over a period of time we > notice the memory usage gets increased gradually. > It can be easily reproducible by writing messages to the more # of dynamic > topics using the same KafkaProducer from apache kafka client libraries or > KafkaTemplate from Spring. > -- This message was sent by Atlassian Jira (v8.3.4#803005)