[v24.2.x] compression: correct endianness in snappy_java_compressor (Manual backport)
#25112
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(cherry picked from commit 0352201)
The versions in the snappy header are written using big-endian format in the `snappy-java` client used by kafka. Mistakenly, `redpanda` would write them using little-endian format in our `snappy_java_compressor` implementation. Correct this by encoding and decoding the `version` and `compatible_version` headers using big-endian format in `snappy_java_compressor`. For references to `snappy-java`'s big-endian implementation, see: * https://github.com/xerial/snappy-java/blob/65e1ec3de1a0d447b137c6dd6393629aa3d75b8b/src/main/java/org/xerial/snappy/SnappyOutputStream.java#L343-L349 * https://github.com/xerial/snappy-java/blob/65e1ec3de1a0d447b137c6dd6393629aa3d75b8b/src/main/java/org/xerial/snappy/SnappyCodec.java#L78-L81 (cherry picked from commit 1c1b006)
Most `snappy` clients do not perform this version check, and furthermore, it is implemented incorrectly here. (cherry picked from commit 5723eb4)
(cherry picked from commit 72d02ee)
The two committed files in `snappy_payload` are a raw uncompressed data file, and a `snappy` compressed data file generated by `redpanda` using the incorrect little-endian encoding for the version fields in the `snappy` header. They are used in a unit test to ensure that with the big-endian fix for `snappy`, we are still able to decompress the buffer and get the same decompressed data as before the fix. (cherry picked from commit a84252d)
In order to allow `kafka-python` to use these compression types, we must be able to import the respective module. (cherry picked from commit 17a2e55)
To test compression compatibility with Java-based Kafka consumers/producers. These tests are parameterized for all compression types, but they most notably serve as reproducers for an outstanding header-field encoding bug in `snappy_java_compressor.cc`. (cherry picked from commit 379f380)
CI test resultstest results on build#61991
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rockwotj
approved these changes
Feb 19, 2025
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Cherry-pick conflict in
setup.py.Also removed
test_upgrade_java_compressionfromjava_compression_test.pyin backports.Closes issue #25107
Backports Required
Release Notes
Bug Fixes
snappy_java_compressorheaders to match that ofsnappy-java.