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Unbounded caches in Instance and Provider modules cause memory growth #13788
Description
Problem
Several places in the codebase use unbounded Map objects for caching:
- Instance cache in
project/instance.ts - Provider SDK cache in
provider/provider.ts
In long-running processes or when handling many directories/providers, these maps can grow without limit, causing steady memory growth.
Expected behavior
Caches should have a maximum size with LRU eviction so memory remains bounded, with optional cleanup callbacks for evicted entries.
Related
This is distinct from #9143 (LSP diagnostics/files cleanup, already fixed in f936043dd). This issue is about the broader pattern of unbounded Map caches elsewhere in the codebase.
Activity
github-actions commentedon Feb 16, 2026
This issue might be a duplicate of existing issues. Please check:
Please review #9140 in particular, as it describes the exact same problem with the same proposed solution (LRU cache with eviction). If you have additional context or reproduction steps beyond what's in #9140, please add them as a comment there.
sauerdaniel commentedon Feb 16, 2026
Closing as duplicate of #9140 to keep one issue per problem/PR scope. PR #9141 now references #9140 directly.