Skip to content
Branch: master
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
66 lines (48 sloc) 2.02 KB
title category
TiKV Roadmap

TiKV Roadmap

This document defines the roadmap for TiKV development.


  • Titan - Use the separated key-value engine in production
  • Pluggable Engine Interface - Clean up the engine wrapper code and provide more extendibility


  • Joint Consensus - Change multi members safely
  • Quiescent Region - Reduce the heartbeat cost of inactive Regions
  • Raft engine - Customize engine to replace RocksDB
  • Remove KV RocksDB WAL - Use Raft log as the WAL of state machine engine
  • Crossing datacenter optimization
    • Raft witness role - Can only vote but not sync logs from Raft leader
    • Follower snapshot - Get the snapshot from the follower when a new node is added
    • Chain replication - Get Raft logs from the non-leader node

Distributed Transaction

  • Flow control - Do flow control in scheduler to avoid write stall in advance
  • History version - Use another place to save history version data
  • Performance
    • Optimize storage format
    • Reduce the latency of getting timestamp
    • Optimize transaction conflicts


  • More pushdown expressions support
  • Common expression pipeline optimization
  • Batch executor - Process multiple rows at a time
  • Vectorized expression evaluation - Evaluate expressions by column
  • Chunk - Compute over the data stored in the continuous memory
  • Explain support - Evaluate the cost of execution


  • Use Raft learner to support Backup/Restore/Replication


  • Rust
  • Go
  • Java
  • C++


  • Visualization - Show the cluster status visually
  • Learner scheduler - Schedule learner Regions to specified nodes
  • Improve hot Region scheduler
  • Improve simulator
  • Range scheduler - Schedule Regions in the specified range


  • Tolerate corrupted Region - TiKV can be started even when the data in some Regions is corrupted
  • Support huge Region whose size is larger than 1 GB
You can’t perform that action at this time.