read-atomic-isolation · unknown · also RA isolation, Read Atomic isolation

Read-atomic isolation

Read-atomic isolation excludes fractured reads and reads of uncommitted, aborted or intermediate transaction versions.

It constrains visibility, not serial execution or concurrent update conflicts. A later version may replace a companion write. [1]

Relations

related
Fractured read, Monotonic Atomic View, Snapshot isolation, Linearizability

Citations

  1. Bailis et al. Scalable Atomic Visibility with RAMP Transactions. SIGMOD 2014, sections 3-4. DOI: 10.1145/2588555.2588562. (accessed 2026-10-19)

Further reading

  1. Hesela: storage consistency and read-set visibility examples. (accessed 2026-10-19)
Sources & caveats
  • The cited 2014 paper defines this model; firstSeen is unset rather than asserting historical priority. Lifecycle status is unknown because this is a semantic guarantee, not a hardware product. [1]

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Hesela team. Read-atomic isolation. Hesela. 2026-10-19. https://hesela.dev/terms/read-atomic-isolation/