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https://issues.apache.org/jira/browse/SPARK-19968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shixiong Zhu resolved SPARK-19968.
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Resolution: Fixed
Assignee: Prashant Sharma
Fix Version/s: 2.2.0
Target Version/s: (was: 2.3.0)
> Use a cached instance of KafkaProducer for writing to kafka via KafkaSink.
> --------------------------------------------------------------------------
>
> Key: SPARK-19968
> URL: https://issues.apache.org/jira/browse/SPARK-19968
> Project: Spark
> Issue Type: Bug
> Components: Structured Streaming
> Affects Versions: 2.2.0
> Reporter: Prashant Sharma
> Assignee: Prashant Sharma
> Labels: kafka
> Fix For: 2.2.0
>
>
> KafkaProducer is thread safe and an instance can be reused for writing every
> batch out. According to Kafka docs, this sort of usage is encouraged. It has
> impact on performance too.
> On an average an addBatch operation takes 25ms with this patch. It takes 250+
> ms without this patch.
> Results of benchmark results, posted on github PR.
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