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feat(remote wal): set default compresion to LZ4 #4294

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merged 2 commits into from
Jul 5, 2024

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@WenyXu WenyXu commented Jul 5, 2024

I hereby agree to the terms of the GreptimeDB CLA.

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What's changed and what's your intention?

Switch the default compression algorithm to LZ4 to reduce WAL size

RaftEngine Kafka, NoCompression Kafka, LZ4
WAL Size 14GiB 38GiB 15GiB
Replay (mean) 57s 53s 54s
Insertion 970-980k point/s 960-970k point/s 960-970k point/s

Checklist

  • I have written the necessary rustdoc comments.
  • I have added the necessary unit tests and integration tests.
  • This PR requires documentation updates.

Summary by CodeRabbit

  • New Features

    • Updated compression method from NoCompression to Lz4 across all configurations for improved data handling efficiency.
  • Improvements

    • Enhanced data compression in TopicManager and various configuration settings, leading to better performance and reduced storage requirements.

@WenyXu WenyXu requested review from MichaelScofield and a team as code owners July 5, 2024 07:11
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coderabbitai bot commented Jul 5, 2024

Walkthrough

The recent changes focus primarily on updating the compression method used throughout the codebase. Specifically, the compression mode switched from NoCompression to Lz4 in various configurations and the TopicManager implementation. This update should improve data storage efficiency and potentially enhance performance.

Changes

Files Change Summary
src/common/meta/src/wal_options_allocator/kafka/topic_manager.rs Changed compression method from NoCompression to Lz4 in TopicManager.
src/common/wal/src/config.rs Updated compression setting to Compression::Lz4 for DatanodeWalConfig and DatanodeKafkaConfig.
src/common/wal/src/config/kafka/datanode.rs Modified compression setting in DatanodeKafkaConfig from NoCompression to Lz4.
src/common/wal/src/config/kafka/standalone.rs Changed compression setting in StandaloneKafkaConfig from NoCompression to Lz4.

Poem

In the rustling code where bytes align,
Lz4 now compresses, oh so fine.
From NoCompression we take a flight,
Data packed smaller, faster than light.
A hop, skip, and a leap so grand,
Our configurations stand hand in hand.
🐇✨


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@WenyXu WenyXu requested review from fengjiachun and v0y4g3r July 5, 2024 07:13
@github-actions github-actions bot added the docs-not-required This change does not impact docs. label Jul 5, 2024
@WenyXu WenyXu force-pushed the feat/kafka-default-compression branch from 0a415cd to 13f71f3 Compare July 5, 2024 07:48
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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between f71b7b9 and 13f71f3.

Files selected for processing (4)
  • src/common/meta/src/wal_options_allocator/kafka/topic_manager.rs (1 hunks)
  • src/common/wal/src/config.rs (2 hunks)
  • src/common/wal/src/config/kafka/datanode.rs (1 hunks)
  • src/common/wal/src/config/kafka/standalone.rs (1 hunks)
Additional comments not posted (5)
src/common/wal/src/config/kafka/datanode.rs (1)

49-49: LGTM! Ensure the compression setting is consistently applied.

The default compression algorithm has been updated to LZ4 as intended.

src/common/wal/src/config/kafka/standalone.rs (1)

70-70: LGTM! Ensure the compression setting is consistently applied.

The default compression algorithm has been updated to LZ4 as intended.

src/common/wal/src/config.rs (2)

210-210: LGTM! Ensure the compression setting is consistently applied.

The compression algorithm has been updated to LZ4 in the DatanodeKafkaConfig struct as intended.


232-232: LGTM! Ensure the compression setting is consistently applied.

The compression algorithm has been updated to LZ4 in the StandaloneKafkaConfig struct as intended.

src/common/meta/src/wal_options_allocator/kafka/topic_manager.rs (1)

176-176: LGTM! Ensure the compression setting is consistently applied.

The compression algorithm has been updated to LZ4 in the try_append_noop_record method as intended.

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codecov bot commented Jul 5, 2024

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.01%. Comparing base (849e0b9) to head (13f71f3).
Report is 5 commits behind head on main.

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #4294      +/-   ##
==========================================
- Coverage   85.31%   85.01%   -0.30%     
==========================================
  Files        1063     1066       +3     
  Lines      188345   188636     +291     
==========================================
- Hits       160686   160372     -314     
- Misses      27659    28264     +605     

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LGTM

@killme2008 killme2008 added this pull request to the merge queue Jul 5, 2024
Merged via the queue into GreptimeTeam:main with commit bc398cf Jul 5, 2024
54 checks passed
WenyXu added a commit that referenced this pull request Jul 8, 2024
@WenyXu WenyXu mentioned this pull request Jul 8, 2024
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3 participants