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EPIC: Zero-copy mmap read path for the File backend (large-object read RSS)

enhancementNew feature or requestNew feature or request

performancePerformance improvementsPerformance improvements

pythonPython libraryPython library

Status: Open.

#171 In cachekit-io/cachekit-py;

· 27Bslash6 opened on Jun 7, 2026

Security hardening: fail-open decrypt, key-fingerprint mismatch, L2 poison, config-drift reads

encryptionEncryption/cryptography relatedEncryption/cryptography related

priority:highMust fix soonMust fix soon

securitySecurity vulnerabilities or hardeningSecurity vulnerabilities or hardening

Status: Open.

#170 In cachekit-io/cachekit-py;

· 27Bslash6 opened on Jun 7, 2026

Large-object/peak-RSS tests exclude all backends — dominant read copies are unmeasured

choreMaintenance, CI/CD, toolingMaintenance, CI/CD, tooling

priority:lowNice to haveNice to have

Status: Open.

#169 In cachekit-io/cachekit-py;

· 27Bslash6 opened on Jun 7, 2026

Documentation accuracy sweep: mmap, Blake3, pickle, orjson, master-key env var

documentationImprovements or additions to documentationImprovements or additions to documentation

priority:lowNice to haveNice to have

Status: Open.

#168 In cachekit-io/cachekit-py;

· 27Bslash6 opened on Jun 7, 2026

auto and pythonic serializer aliases are not canonicalized → cache-miss on every read

bugSomething isn't workingSomething isn't working

priority:lowNice to haveNice to have

pythonPython libraryPython library

Status: Open.

#167 In cachekit-io/cachekit-py;

· 27Bslash6 opened on Jun 7, 2026

AutoSerializer bakes a false compressed flag into the AES-GCM AAD

bugSomething isn't workingSomething isn't working

encryptionEncryption/cryptography relatedEncryption/cryptography related

Status: Open.

#166 In cachekit-io/cachekit-py;

· 27Bslash6 opened on Jun 7, 2026

@cache.secure has no DataFrame path — Arrow is structurally rejected under encryption

encryptionEncryption/cryptography relatedEncryption/cryptography related

enhancementNew feature or requestNew feature or request

Status: Open.

#165 In cachekit-io/cachekit-py;

· 27Bslash6 opened on Jun 7, 2026

Sync L2 hit never backfills L1; sync L2-hit stats stringify the whole value

performancePerformance improvementsPerformance improvements

pythonPython libraryPython library

Status: Open.

#164 In cachekit-io/cachekit-py;

· 27Bslash6 opened on Jun 7, 2026

L1 budget is not configurable + three dead/unenforced config knobs

bugSomething isn't workingSomething isn't working

pythonPython libraryPython library

Status: Open.

#163 In cachekit-io/cachekit-py;

· 27Bslash6 opened on Jun 7, 2026

SerializationWrapper.unwrap copies the full payload on every read (incl. every L1 hit)

performancePerformance improvementsPerformance improvements

pythonPython libraryPython library

Status: Open.

#162 In cachekit-io/cachekit-py;

· 27Bslash6 opened on Jun 7, 2026

Arrow batch-size estimate breaks the bounded-memory guarantee on skewed/wide frames

performancePerformance improvementsPerformance improvements

priority:highMust fix soonMust fix soon

pythonPython libraryPython library

Status: Open.

#161 In cachekit-io/cachekit-py;

· 27Bslash6 opened on Jun 7, 2026

No-pyarrow columnar fallback crashes on pandas nullable extension dtypes (Int64/Float64)

bugSomething isn't workingSomething isn't working

pythonPython libraryPython library

Status: Open.

#160 In cachekit-io/cachekit-py;

· 27Bslash6 opened on Jun 7, 2026