CosIdGenerator
CosIdGenerator Single-machine TPS performance: 1557W/s, three times that of UUID.randomUUID(), clock-based globally trend-increasing ID, can support one million instances simultaneously.
Feature Introduction
- Globally trend-increasing
- Locally monotonically increasing
- High performance: 15,570,085 ops/s (generateAsString), 3 times that of
UUID.randomUUID() - Reverse parse ID state (timestamp, machine ID, sequence number)
- Easy to extend
- Smaller storage space: 15 characters
- Supports one million instances simultaneously
Based on the above features, CosIdGenerator is particularly suitable for globally unique ID generation in large-scale cluster scenarios.
Radix36CosIdGenerator
CosId generator formatted using base-36
[timestamp(44)]-[machineId(20)]-[sequence(16)] = 80 BITS = 17 CHARS=[timestamp(8)]-[machineId(4)]-[sequence(3)]
- Timestamp reduced from original 44 bits to 8 bits
- Machine ID reduced from original 20 bits to 4 bits
- Sequence number reduced from original 16 bits to 3 bits
Radix62CosIdGenerator
CosId generator formatted using base-62
[timestamp(44)]-[machineId-(20)]-[sequence-(16)] = 80 BITS = 15 CHARS=[timestamp(9)]-[machineId(4)]-[sequence(4)]
- Timestamp reduced from original 44 bits to 9 bits
- Machine ID reduced from original 20 bits to 4 bits
- Sequence number reduced from original 16 bits to 3 bits