Compression: enable lightweight temporarily #9416
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Signed-off-by: Lloyd-Pottiger <yan1579196623@gmail.com>
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| M(SettingCompressionMethod, dt_compression_method, CompressionMethod::LZ4, "The method of data compression when writing.") \ | ||
| M(SettingInt64, dt_compression_level, 1, "The compression level.") \ | ||
| M(SettingCompressionMethod, dt_compression_method, CompressionMethod::Lightweight, "The method of data compression when writing.") \ | ||
| M(SettingInt64, dt_compression_level, 3, "The compression level.") \ |
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Why change dt_compression_level to 3?
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The default level of Lightweight will be set to 3, which means analyzing once for every 3 packs.
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So, If we want to change configuration of compression, we should change dt_compression_method and dt_compression_level at the same time?
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The value of dt_compression_level ranges from [1, inf)
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: CalvinNeo, JaySon-Huang, JinheLin, yudongusa The full list of commands accepted by this bot can be found here. The pull request process is described here
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What problem does this PR solve?
Issue Number: close #8982
Problem Summary:
What is changed and how it works?
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