Vincent Tieleman created KAFKA-4638:
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Summary: Outdated and misleading link in section "End-to-end Batch
Compression"
Key: KAFKA-4638
URL: https://issues.apache.org/jira/browse/KAFKA-4638
Project: Kafka
Issue Type: Bug
Components: compression
Affects Versions: 0.10.1.1
Environment: Documentation
Reporter: Vincent Tieleman
Priority: Minor
The section "End-to-end Batch Compression" mentions the following:
"Kafka supports GZIP, Snappy and LZ4 compression protocols. More details on
compression can be found here."
When looking up the "here" link,
https://cwiki.apache.org/confluence/display/KAFKA/Compression, it describes not
only the mechanism, but also gives the configuration properties to use. The
properties provided are "compression.codec" and "compression.topics", but these
are no longer used. Instead, one should use "compression.type", where one can
directly specify which compression to use (i.e. currently gzip, snappy or lz4).
The link also fails to mention lz4 compression, which is supported by now.
Not aware that this information is outdated, I spent quite some time before
finding out that I was using the wrong properties. I imagine this must happen
to more people.
I suggest adding a small remark to the link, so that people know it is
outdated. Furthermore, I would add that the latest configuration properties can
be found in the "Producer config" section.
The alternative would be to simply remove the link all together, as there is
too much outdated information in it.
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