flatkv cache#3027

Draft

cody-littley wants to merge 73 commits intomainfrom

cjl/flatkv-cache

Commits on Mar 5, 2026

Created a cache for flatKV.
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checkpoint
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incremental progress
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address feedback
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more fixes
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bugfix
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wire in cache
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Commits on Mar 6, 2026

Merge branch 'main' into cjl/flatkv-cache
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incremental improvements
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checkin
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Moved where the cache sits
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bugfix
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Batch update the cache
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Add batch read to cache
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Add batch get to db interface
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integrate batch reads
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wire in cache
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Introduce work pool, size caches differently
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bugfix
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Commits on Mar 9, 2026

Add unit constants
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refactor threading utils
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cleanup
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Cleanup, fix race condition
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cleanup
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cleanup
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use pool
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fix ctx lifecycle
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Merge branch 'main' into cjl/flatkv-cache
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rename package
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Clean up string copies
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simplify gc
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better error handling
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use config to configure cache params
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Allow flatkv config to be set in tests
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Commits on Mar 10, 2026

tweak config
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incremental progress
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move data dir into config
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fix config file
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cleanup
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move pebble metrics to proper location
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clean up metrics
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updated dashboard
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fix histograms
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threading tests
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test lru queue
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unit tests for shard
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cache tests
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moar unit tests
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cleanup
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Merge branch 'main' into cjl/flatkv-cache
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Merge branch 'main' into cjl/flatkv-cache
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Commits on Mar 11, 2026

Merge branch 'main' into cjl/flatkv-cache
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unit test fixes
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fix hash bug
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fixed path bug
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Helper files for flatKV cache
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add missing struct
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Commits on Mar 12, 2026

Merge branch 'main' into cjl/cache-auxilery
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made suggested changes
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fix tests
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Merge branch 'main' into cjl/flatkv-cache
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Merge branch 'cjl/cache-auxilery' into cjl/flatkv-cache
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Commits on Mar 13, 2026

Maded suggested change to cache structure
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rename cache -> dbcache to avoid gitignore
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Helper files for the flatKV cache implementation
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bugfix
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Commits on Mar 16, 2026

Merge branch 'cjl/cache-auxilery-2' into cjl/flatkv-cache
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fix merge problems
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refactor API
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made suggested changes
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made suggested changes
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fix bug
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Merge branch 'main' into cjl/flatkv-cache
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