Consistent Hashing
受众: Software Engineer类别: Computer Science
简介
Demonstrates consistent hashing on a circular hash ring (0–360 degrees). Server nodes are placed on the ring, keys are assigned clockwise, and the animation shows that adding or removing a server only redistributes a minimal fraction of keys. Virtual nodes are introduced to improve load distribution.
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Consistent Hashing
Description
Demonstrates consistent hashing on a circular hash ring (0–360 degrees). Server nodes are placed on the ring, keys are assigned clockwise, and the animation shows that adding or removing a server only redistributes a minimal fraction of keys. Virtual nodes are introduced to improve load distribution.
Phases
| # | Phase Name | Duration | Description |
|---|---|---|---|
| 1 | Intro | 3s | Title and empty ring displayed |
| 2 | Place Servers | 6s | Server A, B, C placed on ring at distinct positions |
| 3 | Assign Keys | 8s | Keys k1–k6 hashed and placed; clockwise assignment shown |
| 4 | Add Server | 8s | Server D added; only keys between D and predecessor move |
| 5 | Remove Server | 8s | Server B removed; only its keys move to next server |
| 6 | Virtual Nodes | 8s | Each server gets 2–3 virtual nodes for uniform distribution |
| 7 | Outro | 5s | Comparison: naive hashing vs consistent hashing |
Layout
+--------------------------------------------------+
| Title: Consistent Hashing |
+--------------------------------------------------+
| |
| A (at 60°) |
| / \ |
| B (180°) (360°/0°) |
| \ / |
| C (270°) |
| |
| Keys shown as small dots on ring |
| Server assignment shown with colored arcs |
| |
| Right: Virtual nodes panel |
+--------------------------------------------------+
Area Descriptions
- Center: Hash ring circle with server nodes and key dots
- Right: Virtual nodes explanation panel
- Bottom: Key reassignment count display
Assets & Dependencies
- Fonts: LaTeX / sans-serif
- Manim version: ManimCE 0.19.1
Notes
- Ring shown as a circle with 0/360 at top
- Server nodes as larger colored dots with labels
- Keys as smaller white/gray dots
- Clockwise assignment shown with colored arc sectors
- Virtual nodes shown as repeated colored dots with suffix (A1, A2, etc.)