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https://issues.apache.org/jira/browse/KAFKA-6992?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chia-Ping Tsai resolved KAFKA-6992.
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Resolution: Won't Fix
> Configuring the batch.size to zero won't disable the batching entirely
> ----------------------------------------------------------------------
>
> Key: KAFKA-6992
> URL: https://issues.apache.org/jira/browse/KAFKA-6992
> Project: Kafka
> Issue Type: Bug
> Components: documentation
> Reporter: Chia-Ping Tsai
> Priority: Minor
>
> In MAGIC_VALUE_V2, the varint is used and the estimated size won't be equal
> with the actual size. So it has chance to accept more records in a single
> produce batch.
> Perhaps we should revise the docs of batch.size.
> {code:java}
> public static final String BATCH_SIZE_CONFIG = "batch.size";
> private static final String BATCH_SIZE_DOC = "The producer will attempt to
> batch records together into fewer requests whenever multiple records are
> being sent"
> + " to the same partition. This
> helps performance on both the client and the server. This configuration
> controls the "
> + "default batch size in bytes. "
> + "<p>"
> + "No attempt will be made to
> batch records larger than this size. "
> + "<p>"
> + "Requests sent to brokers will
> contain multiple batches, one for each partition with data available to be
> sent. "
> + "<p>"
> + "A small batch size will make
> batching less common and may reduce throughput (a batch size of zero will
> disable "
> + "batching entirely). A very
> large batch size may use memory a bit more wastefully as we will always
> allocate a "
> + "buffer of the specified batch
> size in anticipation of additional records.";{code}
>
>
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