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baidu/uid-generator

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5,572 stele·1,552 fork-uri·Java·Apache-2.0·7 vizualizări

Uid Generator

Acest proiect este un generator de ID-uri unice distribuit, conceput pentru a produce identificatori unici globali și sortabili pe 64 de biți pe mai multe noduri. Implementează un algoritm compatibil cu Snowflake care previne coliziunile prin combinarea timestamp-urilor, identificatorilor de worker și numerelor de secvență într-un singur întreg.

Sistemul include un orchestrator de ID-uri de worker pentru a aloca și menține identități unice de mașină în timpul pornirii și migrării instanței folosind strategii bazate pe baze de date. Pentru a crește throughput-ul cererilor și a reduce latența, utilizează un strat de caching de tip ring-buffer care pre-generează identificatori și folosește un mecanism de reumplere bazat pe praguri.

Software-ul oferă capabilități pentru gestionarea cheilor de baze de date distribuite, coordonarea nodurilor de sistem și configurarea distribuției biților pentru a echilibra nevoile de concurență față de durata de viață a sistemului. Include, de asemenea, utilitare pentru parsarea identificatorilor generați înapoi în componentele lor originale.

Features

  • Unique Identifier Generators - Provides a system for generating globally unique, sortable identifiers to prevent collisions across distributed server nodes.
  • Distributed Identifier Generators - Generates unique primary keys across distributed nodes without requiring a central coordination round-trip for every ID.
  • Distributed Primary Key Generation - Generates time-ordered unique identifiers specifically designed for use as primary keys in distributed databases.
  • Snowflake ID Generators - Produces 64-bit unique identifiers using the Snowflake algorithm to ensure global uniqueness in distributed environments.
  • ZooKeeper Worker Assignments - Allocates unique worker identities during startup to ensure that each node generates a unique set of Snowflake IDs.
  • Concurrent Ring Buffering - Utilizes concurrent ring buffers to decouple the production of unique IDs from their consumption by requests.
  • Distributed Coordination Systems - Coordinates unique worker identities across a cluster to ensure distinct node identities in a distributed system.
  • Worker Identity Assignments - Provides a mechanism to assign unique worker identities during startup via a database to prevent ID collisions.
  • Identifier Bit-Packing - Implements bit-packing of timestamps, worker IDs, and sequences to construct a unique 64-bit identifier.
  • Batch ID Caches - Utilizes a batch ID cache to store pre-produced identifiers, significantly reducing concurrency bottlenecks.
  • Segment Caching Refills - Implements a threshold-based refill mechanism to replenish the ID cache from the database before it is depleted.
  • High-Throughput ID Generators - Achieves high throughput by pre-generating and caching identifiers in a ring buffer to reduce request latency.
  • Cache-Line Padding - Employs cache-line padding between buffer elements to eliminate false sharing and increase hardware throughput.

Istoric stele

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Alternative open-source pentru Uid Generator

Proiecte open-source similare, clasificate după numărul de funcționalități comune cu Uid Generator.
  • twitter-archive/snowflakeAvatar twitter-archive

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    Snowflake is a distributed unique ID generation service designed to produce non-colliding, time-ordered identification numbers at high scale. It functions as a scalable ID issuer that creates distinct entity identifiers across multiple server nodes to avoid coordination bottlenecks. The system utilizes stateless identifier coordination, calculating unique IDs through a deterministic mathematical formula rather than relying on a central database to track the last issued number. This approach allows it to generate identifiers for distributed database primary keys and high-scale transaction trac

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  • meituan-dianping/leafAvatar Meituan-Dianping

    Meituan-Dianping/Leaf

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    Leaf is a distributed unique ID generation system that provides two distinct modes for producing identifiers across multiple application instances without central coordination. It offers both a database-backed segment mode, which allocates blocks of IDs from a database table and caches them in memory for high throughput, and a Snowflake-style mode that combines timestamps, worker identifiers, and sequence counters to produce time-sortable unique IDs. The system distinguishes itself by offering dual-mode generation through a single RESTful endpoint, allowing applications to choose between segm

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  • sony/sonyflakeAvatar sony

    sony/sonyflake

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    Sonyflake is a distributed unique ID library that creates collision-free, chronologically ordered identifiers across multiple machines. It functions as a time-based generator that encodes timestamps into IDs, ensuring that identifiers are monotonically sorted. The system operates without a central coordinating authority, producing unique IDs across distributed nodes without requiring shared state communication or central locks. It prevents collisions between different nodes by incorporating host-aware machine identifiers, which are resolved using private network addresses or cloud instance me

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  • segmentio/ksuidAvatar segmentio

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    ksuid is a Go implementation of k-sortable unique identifiers. It provides a system for generating globally unique identifiers that maintain a natural chronological order based on their generation timestamp. The project enables the creation of unique keys across distributed systems without a central coordinator. These identifiers are designed for use as database primary keys to maintain index performance and insert efficiency. The library includes capabilities for identifier serialization and parsing, allowing conversion between binary, text, and SQL formats. It also provides command-line to

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Întrebări frecvente

Ce face baidu/uid-generator?

Acest proiect este un generator de ID-uri unice distribuit, conceput pentru a produce identificatori unici globali și sortabili pe 64 de biți pe mai multe noduri. Implementează un algoritm compatibil cu Snowflake care previne coliziunile prin combinarea timestamp-urilor, identificatorilor de worker și numerelor de secvență într-un singur întreg.

Care sunt principalele funcționalități ale baidu/uid-generator?

Principalele funcționalități ale baidu/uid-generator sunt: Unique Identifier Generators, Distributed Identifier Generators, Distributed Primary Key Generation, Snowflake ID Generators, ZooKeeper Worker Assignments, Concurrent Ring Buffering, Distributed Coordination Systems, Worker Identity Assignments.

Care sunt câteva alternative open-source pentru baidu/uid-generator?

Alternativele open-source pentru baidu/uid-generator includ: twitter-archive/snowflake — Snowflake is a distributed unique ID generation service designed to produce non-colliding, time-ordered identification… meituan-dianping/leaf — Leaf is a distributed unique ID generation system that provides two distinct modes for producing identifiers across… sony/sonyflake — Sonyflake is a distributed unique ID library that creates collision-free, chronologically ordered identifiers across… segmentio/ksuid — ksuid is a Go implementation of k-sortable unique identifiers. It provides a system for generating globally unique… rs/xid — xid is a distributed unique identifier library designed to generate compact, globally unique, and k-sortable… ramsey/uuid — This PHP library provides tools for generating and validating universally unique identifiers according to RFC 4122…