Jason Gustafson created KAFKA-6480:
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Summary: Add config to enforce max fetch size on the broker
Key: KAFKA-6480
URL: https://issues.apache.org/jira/browse/KAFKA-6480
Project: Kafka
Issue Type: Bug
Reporter: Jason Gustafson
Users are increasingly hitting memory problems due to message format
down-conversion. The problem is basically that we have to do the
down-conversion in memory. Since the default fetch size is 50Mb, it doesn't
take that many fetch requests to cause an OOM. One mitigation is KAFKA-6352. It
would also be helpful if the broker had a configuration to restrict the maximum
allowed fetch size across all consumers. This would also prevent a malicious
client from using this in order to DoS the server.
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