# tikv

Published articles for tikv.

This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles.

## 【etcd】选型收束与开放问题：排除树与系列边界关闭

DevFeed: [【etcd】选型收束与开放问题：排除树与系列边界关闭](<https://devfeed.tech/articles/etcd-33998.md>)

Original publisher: [Read original article](<https://quant67.com/post/etcd/16-selection/16-selection.html>)

Author: Liao Tonglang

Published: 2026-08-26T00:00:00Z

Content type: article

Language: zh

Sources: [土法炼钢 - 系统与基础设施](<https://devfeed.tech/sources/source-4.md>)

Topics: [etcd](<https://devfeed.tech/topics/etcd.md>), [Raft](<https://devfeed.tech/topics/raft.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>)

Tags: [apiserver](<https://devfeed.tech/tags/apiserver.md>), [backup](<https://devfeed.tech/tags/backup.md>), [compaction](<https://devfeed.tech/tags/compaction.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [etcd](<https://devfeed.tech/tags/etcd.md>), [exclusion-tree](<https://devfeed.tech/tags/exclusion-tree.md>), [foundationdb](<https://devfeed.tech/tags/foundationdb.md>), [guide](<https://devfeed.tech/tags/guide.md>), [k8s](<https://devfeed.tech/tags/k8s.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [lease](<https://devfeed.tech/tags/lease.md>), [open-questions](<https://devfeed.tech/tags/open-questions.md>), [raft](<https://devfeed.tech/tags/raft.md>), [selection](<https://devfeed.tech/tags/selection.md>), [tikv](<https://devfeed.tech/tags/tikv.md>), [v3](<https://devfeed.tech/tags/v3.md>), [v3-5-33](<https://devfeed.tech/tags/v3-5-33.md>), [zookeeper](<https://devfeed.tech/tags/zookeeper.md>)

### AI overview

This concluding article presents a mechanism-based decision tree for deciding when to retain etcd and when to migrate to TiKV or FoundationDB. It defines etcd's fit for small data sets with Watch and Lease dependencies, identifies disqualifying conditions such as quota pressure, sharding needs, cross-key transactions, Watch backpressure, and insufficient operational capacity, and clarifies the boundaries between related article series.

### Source excerpt

用机制排除树收束何时该留 etcd、何时迁 TiKV/FDB/ZK；回收 distributed/39、tikv-htap/18、foundationdb/18 的 etcd 叶；列出 Watch 背压、Lease+fencing、quota 迁移等开放问题；以 ADR 语言关闭续作边界。

## 【TiKV / HTAP 内核】Region - Multi-Raft - PD - Percolator - TiFlash

DevFeed: [【TiKV / HTAP 内核】Region - Multi-Raft - PD - Percolator - TiFlash](<https://devfeed.tech/articles/tikv-htap-region-multi-raft-pd-percolator-tiflash-33977.md>)

Original publisher: [Read original article](<https://quant67.com/post/db/tikv-htap/index.html>)

Author: Liao Tonglang

Published: 2026-07-16T00:00:00Z

Content type: article

Language: zh

Sources: [土法炼钢 - 系统与基础设施](<https://devfeed.tech/sources/source-4.md>)

Topics: [Raft](<https://devfeed.tech/topics/raft.md>), [rocksdb](<https://devfeed.tech/topics/rocksdb.md>), [etcd](<https://devfeed.tech/topics/etcd.md>), [SQL](<https://devfeed.tech/topics/sql.md>), [CockroachDB](<https://devfeed.tech/topics/cockroachdb.md>), [Databases](<https://devfeed.tech/topics/databases.md>)

Tags: [database](<https://devfeed.tech/tags/database.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [distributed-kv](<https://devfeed.tech/tags/distributed-kv.md>), [etcd](<https://devfeed.tech/tags/etcd.md>), [htap](<https://devfeed.tech/tags/htap.md>), [learner](<https://devfeed.tech/tags/learner.md>), [multi-raft](<https://devfeed.tech/tags/multi-raft.md>), [pd](<https://devfeed.tech/tags/pd.md>), [percolator](<https://devfeed.tech/tags/percolator.md>), [raft](<https://devfeed.tech/tags/raft.md>), [range](<https://devfeed.tech/tags/range.md>), [region](<https://devfeed.tech/tags/region.md>), [rocksdb](<https://devfeed.tech/tags/rocksdb.md>), [snapshot](<https://devfeed.tech/tags/snapshot.md>), [split](<https://devfeed.tech/tags/split.md>), [sql](<https://devfeed.tech/tags/sql.md>), [storage](<https://devfeed.tech/tags/storage.md>), [tidb](<https://devfeed.tech/tags/tidb.md>), [tiflash](<https://devfeed.tech/tags/tiflash.md>), [tikv](<https://devfeed.tech/tags/tikv.md>), [tso](<https://devfeed.tech/tags/tso.md>)

### AI overview

This article series explains TiKV 7.x/8.x internals through Region modeling, Multi-Raft replication, raftstore apply, RocksDB column families, PD and TSO scheduling, Percolator transactions, coprocessor boundaries, and TiFlash Learner freshness. It also compares selected aspects with etcd and CockroachDB.

### Source excerpt

补齐 RocksDB 单 Region、Raft 协议与 HTAP 范式之间的工程链路：以 TiKV 7.x/8.x 拆解 Region、Multi-Raft、raftstore、PD/TSO 与 Percolator 事务，并以 TiFlash Learner 收束新鲜度；CockroachDB 对照与选型。