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feat: optional zstd compression of block and undo files - #7939

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knst wants to merge 16 commits into

dashpay:developfrom

knst:feat-zstd-blocks

Open

feat: optional zstd compression of block and undo files#7939
knst wants to merge 16 commits into
dashpay:developfrom
knst:feat-zstd-blocks

Commits on Oct 30, 2026
- feat: add zstd as an optional dependency
  knst
  committed
  264ee24
- feat: add zstd compress/decompress helpers
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  committed
  5ff20ae
- feat: read block records through a decompressing record reader
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  70e1a14
- feat: write new block records zstd-compressed
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  eb4ab26
- test: report zstd availability in test/config.ini
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  committed
  82c6a3b
- test: cover pruning over zstd-compressed block files and adoption of linearize-data.py
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  eab463f
- feat: keep -blockcompression at 0 by default until v25
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  63f2bd8
- feat: write block undo records zstd-compressed
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  87a4d2f
- fix: read the undo checksum after the stored payload, not after the decompressed data
  
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  7b816f3
- fix: decompress reindexed block records without relying on a recorded content size
  
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  44664dc
- fix: cap decompressed block records at MaxBlockSize() when reading them
  
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  e62c0e9
- fix(contrib): bound zstd decompression in linearize-data.py
  
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  7769778
- fix: log one warning per block file for compressed blocks skipped by a no-zstd build
  
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  314dcce
- ci: build linux64_tsan without zstd
  
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  6e41908
- test: prune and read back compressed undo records in feature_remove_pruned_files_on_startup
  
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  22ccff5
- fix(rpc): subtract spent output sizes in getblockstats as signed values
  knst
  committed
  f17c2d7

Commits

Commits on Oct 30, 2026