# paxos

Published articles for paxos.

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## Instrumenting AI: Multi-master replication and the split brain problem

DevFeed: [Instrumenting AI: Multi-master replication and the split brain problem](<https://devfeed.tech/articles/instrumenting-ai-multi-master-replication-and-the-split-brain-problem-39576.md>)

Original publisher: [Read original article](<https://ankit-rana.com/logs/24-instrumenting-ai-multi-master-replication-split-brain/>)

Author: hello@ankit-rana.com

Published: 2026-05-17T00:00:00Z

Content type: article

Language: en

Sources: [Ankit Rana | Mechanical Sympathy](<https://devfeed.tech/sources/ankit-rana-mechanical-sympathy.md>)

Topics: [distributed-systems](<https://devfeed.tech/topics/distributed-systems.md>), [Databases](<https://devfeed.tech/topics/databases.md>), [AI Infrastructure](<https://devfeed.tech/topics/ai-infrastructure.md>), [Raft](<https://devfeed.tech/topics/raft.md>), [Availability](<https://devfeed.tech/topics/availability.md>), [Network](<https://devfeed.tech/topics/network.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [ai-infrastructure](<https://devfeed.tech/tags/ai-infrastructure.md>), [conflict-resolution](<https://devfeed.tech/tags/conflict-resolution.md>), [consensus](<https://devfeed.tech/tags/consensus.md>), [database](<https://devfeed.tech/tags/database.md>), [distributed-systems](<https://devfeed.tech/tags/distributed-systems.md>), [network](<https://devfeed.tech/tags/network.md>), [partitions](<https://devfeed.tech/tags/partitions.md>), [paxos](<https://devfeed.tech/tags/paxos.md>), [raft](<https://devfeed.tech/tags/raft.md>), [split-brain](<https://devfeed.tech/tags/split-brain.md>)

### AI overview

The article explains how multi-master replication can produce split-brain behavior during network partitions. Both masters may accept conflicting writes, and reconciliation after the partition can discard valid data through last-write-wins rules. It presents Raft and Paxos quorum requirements as a way to prevent a second active brain.

### Source excerpt

In multi-master replication every node accepts writes, so when the network partitions both masters stay active and accept conflicting writes into isolated silos. On heal, automated conflict resolution usually falls back to last-write-wins, which blindly discards valid data. Raft and Paxos prevent this by requiring an odd node count and a strict majority: an isolated leader cannot reach quorum, so it steps down instead of forming a second brain.

## HoliPaxos: Towards More Predictable Performance in State Machine Replication

DevFeed: [HoliPaxos: Towards More Predictable Performance in State Machine Replication](<https://devfeed.tech/articles/holipaxos-towards-more-predictable-performance-in-state-machine-replication-39544.md>)

Original publisher: [Read original article](<https://charap.co/holipaxos-towards-more-predictable-performance-in-state-machine-replication/>)

Author: Aleksey Charapko

Published: 2025-08-12T20:42:29Z

Content type: article

Language: en

Sources: [Aleksey Charapko](<https://devfeed.tech/sources/aleksey-charapko.md>)

Topics: [Replication](<https://devfeed.tech/topics/replication.md>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [Algorithms](<https://devfeed.tech/topics/algorithms.md>), [Algorithms, Complexity](<https://devfeed.tech/topics/algorithms-complexity.md>)

Tags: [consensus](<https://devfeed.tech/tags/consensus.md>), [management](<https://devfeed.tech/tags/management.md>), [network](<https://devfeed.tech/tags/network.md>), [other-thoughts](<https://devfeed.tech/tags/other-thoughts.md>), [paper-review-and-summary](<https://devfeed.tech/tags/paper-review-and-summary.md>), [partitions](<https://devfeed.tech/tags/partitions.md>), [paxos](<https://devfeed.tech/tags/paxos.md>), [performance](<https://devfeed.tech/tags/performance.md>), [protocol](<https://devfeed.tech/tags/protocol.md>), [replication](<https://devfeed.tech/tags/replication.md>)

### AI overview

The article introduces HoliPaxos, a paper proposing orthogonal optimizations to the classical MultiPaxos state machine replication protocol. The changes target more stable performance during slow-node conditions, network partitions, and log management while preserving MultiPaxos behavior in the common case.

### Source excerpt

I will be presenting our new paper, "HoliPaxos: Towards More Predictable Performance in State Machine Replication," at the VLDB'25. Feel free to ping me if you are there and want to chat! This paper explores several orthogonal optimizations to the classical MultiPaxos state machine replication protocol to improve its performance stability in the presence of [...]