Expand description
Vector clock.
This module provides two concepts:
Their meaning is explained below.
To ensure data persistence, Tarantool records updates to the
database in the so-called write-ahead log (WAL) files. Each record
in the WAL represents a single Tarantool data-change request such as
INSERT, UPDATE, or DELETE, and is assigned a monotonically
growing log sequence number (LSN).
Enabling replication makes all replicas in a replica set to exchange their records, each with it’s own LSN. Together, LSNs from different replicas form a vector clock (vclock). Vclock defines the database state of an instance.
The zero vclock component is special, it’s used for tracking local
Structs§
- Vclock
- Tarantool vector clock.
Type Aliases§
- Lsn
- Tarantool log sequence number.