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@kvahed kvahed commented Dec 11, 2025

Scope & Purpose

Prevent RocksDB from creating tiny SST files for large number of databases, collections

  • 💩 Bugfix
  • 🍕 New feature
  • 🔥 Performance improvement
  • 🔨 Refactoring/simplification

Checklist

  • Tests
    • Regression tests
    • C++ Unit tests
    • integration tests
    • resilience tests
  • 📖 CHANGELOG entry made
  • 📚 documentation written (release notes, API changes, ...)
  • Backports
    • Backport for 3.12.0: (Please link PR)
    • Backport for 3.11: (Please link PR)
    • Backport for 3.10: (Please link PR)

Related Information

(Please reference tickets / specification / other PRs etc)

  • Docs PR:
  • Enterprise PR:
  • GitHub issue / Jira ticket:
  • Design document:

Note

Turns off default partitioning of document column family SST files and updates the changelog with a fix note.

  • RocksDB engine:
    • Change default in arangod/RocksDBEngine/RocksDBOptionFeature.cpp: set _partitionFilesForDocumentsCf to false (stop partitioning document data into per-collection/shard .sst files by default).
  • Changelog:
    • Add 3.12.6.2 entry noting fix for RocksDB creating tiny .sst files.

Written by Cursor Bugbot for commit 55672cf. This will update automatically on new commits. Configure here.

@kvahed kvahed self-assigned this Dec 11, 2025
@kvahed kvahed added 3 RocksDB Storage engine related 3 Compaction Related to the rocksdb compaction labels Dec 11, 2025
@cla-bot cla-bot bot added the cla-signed label Dec 11, 2025
@kvahed kvahed requested review from jbajic and mpoeter December 11, 2025 12:56
@kvahed kvahed changed the title Fix issue with RocksDB producing tiny SST files Fix issue with RocksDB producing tiny SST files 3.12.6 Dec 11, 2025
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LGTM

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3 Compaction Related to the rocksdb compaction 3 RocksDB Storage engine related cla-signed

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3 participants