Solving Concurrent Session Issues in Claude Code: Implementing Memory MCP with WAL Mode

Technical Article#AI Development, Claude Code, SQLite, WAL Mode📝 Blog|Analyzed: Jan 3, 2026 06:10
Published: Jan 1, 2026 08:55
1 min read
Zenn Claude

Analysis

The article describes a solution to the 'database is locked' error encountered when running concurrent sessions in Claude Code. The author implemented a Memory MCP (Memory Management and Communication Protocol) using SQLite's WAL (Write-Ahead Logging) mode to enable concurrent access and knowledge sharing between Claude Code sessions. The target audience is developers who use Claude Code.
Reference / Citation
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"The article quotes the initial reaction to the error: "Error: database is locked... Honestly, at first I was like, 'Seriously?'""
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Zenn ClaudeJan 1, 2026 08:55
* Cited for critical analysis under Article 32.