Skip to content

Issue on docs #3463

@Tony-hair

Description

@Tony-hair

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];

  1. OlapFile 定义(olap_file.proto)
    optional segment_v2.CompressionTypePB compression_type = 13 [default=LZ4F];

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions