grpc: skip compression of empty messages #6842
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Fixes grpc#6831. This avoids compressing messages that are empty, since you can't compress zero bytes to anything smaller than zero bytes, and most compression algorithms output headers and trailers which means the resulting message will be non-zero bytes.
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Codecov Report
Additional details and impacted files@@ Coverage Diff @@
## master #6842 +/- ##
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+ Coverage 83.33% 83.65% +0.32%
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Files 285 286 +1
Lines 30879 30804 -75
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+ Hits 25732 25769 +37
+ Misses 4067 3976 -91
+ Partials 1080 1059 -21
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easwars
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Type: Performance
easwars
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Dec 13, 2023
easwars
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dfawley
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Jan 9, 2024
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Fixes #6831.
This avoids compressing messages that are empty, since you can't compress zero bytes to anything smaller than zero bytes, and most compression algorithms output headers and trailers which means the resulting message will be non-zero bytes.
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