~/talk

Elastic Scheduling with TiKV

on YouTube 22m
Talkat KubeCon + CloudNativeCon North America 2020 Virtual · on Wednesday, 2020-11-18· at 17:45· Intrado Virtual Event Platform,· [databases, kubernetes]

speakers

name:Song Gao
links:none on file
name:Yutong Liang
links:none on file

resources

video:https://youtu.be/rY2h-0TZaEo
slides:none on file

summary

Elastic scheduling adds an operator + PD-based pipeline that auto-scales TiKV on Kubernetes: TiKV exports metrics to Prometheus, PD pulls metrics and runs a hot-region scheduler that migrates only high read/write regions via Raft leader transfer and replica add/remove, and an operator CRD/controller labels new nodes (e.g. special_use=hot-region) so only hot schedulers target them. A sysbench/TiDB experiment spins up two nodes, moves hot regions and shows TPS/QPS increase; future work adds follower-read replicas and cold-to-cheap-storage tiering.

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chapters (9)

  1. 0:00Start
  2. 0:59Agenda
  3. 1:47Background Information
  4. 2:28Architecture
  5. 6:09Elastic Scheduling
  6. 7:10Why Do We Need or Choose the Elastic Scheduling
  7. 11:37Operator Pattern
  8. 16:45Label Filter
  9. 17:12Elastic Scheduling Configuration

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