vipin Kumar created SPARK-49442:
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             Summary: Complete Metadata requests on each micro batch causing 
Kafka issues
                 Key: SPARK-49442
                 URL: https://issues.apache.org/jira/browse/SPARK-49442
             Project: Spark
          Issue Type: Bug
          Components: Structured Streaming
    Affects Versions: 3.3.2
            Reporter: vipin Kumar


We have noticed that spark does complete metadata requests on each micro batch 
and this is causing high metadata requests on small micro batch intervals .

 

For example Kafka with 1900 partitions and 10 sec micro batch we are seeing 
order of 
~{*}360K{*} metadata requests / sec 

Same with job with 60 sec micro batch we are observing *~60K* meta data 
requests.

 

Metadata requests are controlled by *metadata.max.age.ms* but these config have 
no effect on spark consumers by default its 5 mins still we are seeing these 
huge requests.

 

 



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