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Record W2097185670 · doi:10.1109/spdp.1990.143522

A new paradigm for high availability and efficiency in replicated distributed databases

2002· article· en· W2097185670 on OpenAlex
Peter Triantafillou, D. Taylor

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicDistributed systems and fault tolerance
Canadian institutionsUniversity of Waterloo
Fundersnot available
KeywordsComputer scienceSerializabilityReplication (statistics)CorrectnessConcurrency controlDistributed computingDatabase transactionReplicaTransaction processingHigh availabilityMechanism (biology)DatabaseDistributed databaseService (business)Distributed transactionProgramming language

Abstract

fetched live from OpenAlex

The paper presents a new paradigm for replication. Its major goal is to achieve performance similar to systems that do not employ replication and, at the same time, to offer the availability benefits that result from replication. The paradigm contributes two mechanisms. The first mechanism is an extended location service, for which it uses a logically centralized implementation. In addition, it modifies the traditional transaction-processing mechanism to interact with the location service inexpensively during transaction execution. The second mechanism is a priority-based, preemptive concurrency control algorithm which allows locks to be synchronously acquired at only a single replica. In addition, the paradigm exhibits desirable availability characteristics, satisfies the one-copy serializability correctness criterion and is easy to implement. For these reasons it is presented as a basis for designing efficient and highly available distributed databases.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.961
Threshold uncertainty score0.459

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.033
GPT teacher head0.256
Teacher spread0.224 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Quick stats

Citations13
Published2002
Admission routes1
Has abstractyes

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