Tony-hair opened a new issue, #3463:
URL: https://github.com/apache/doris-website/issues/3463
Path:/zh-CN/docs/4.x/admin-manual/config/fe-config
参数default_compression_type
默认值：lz4（4.0.3 之前），zstd（4.0.3 及之后）
从代码来看Doris3.1.3应该是LZ4F
默认压缩算法
Doris 默认使用 LZ4F 压缩算法。
代码证据
1. TabletSchema 默认压缩类型（tablet_schema.h）
segment_v2::CompressionTypePB _compression_type =
segment_v2::CompressionTypePB::LZ4F;
2. Proto 定义默认值（segment_v2.proto）
enum CompressionTypePB { UNKNOWN_COMPRESSION = 0; DEFAULT_COMPRESSION
= 1; NO_COMPRESSION = 2; SNAPPY = 3; LZ4 = 4; LZ4F = 5; // 默认值
ZLIB = 6; ZSTD = 7; LZ4HC = 8;}// 文件列的默认压缩类型optional CompressionTypePB
compress_type = 7 [default = LZ4F];
3. OlapFile 定义（olap_file.proto）
optional segment_v2.CompressionTypePB compression_type = 13 [default=LZ4F];
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