# NousResearch/hermes-agent · mem0 OSS Qdrant client and config fixes

## Open now

- Nothing open on GitHub.

A cluster of bug fixes targeting the mem0 OSS backend: resolving Qdrant file-lock conflicts on Windows by reusing existing clients, handling stale collection references after dimension-mismatch deletions, and forwarding reranker configuration correctly.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 0 merged PR(s), 3 PR(s) closed without merging.
- No fix has been merged to main; one or more PRs were attempted (see below).
- **Recommended:** review the prior/competing PR(s) below. A fix was attempted but not merged; your case may extend or revive that work.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.50`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #58705: Bug: mem0 OSS - agent tools fail with Qdrant lock conflict when plugin holds the lock

## Prior & competing PRs

- **#57271: fix(memory): forward reranker config and rerank param in OSSBackend**. closed without merge
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `781334eea4`, `#133822`
- **#58714: fix(memory/mem0): reuse Memory's Qdrant client for dims check to avoid Windows file-lock conflict**. closed without merge
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `781334eea4`, `#133822`
- **#68992: fix(memory/mem0): recreate Qdrant collection after dim-mismatch delete, preventing stale collection ref**. closed without merge
  - maintainer direction: category `partial_fix`; implication `needs_llm`; refs `5c4eaf3904d6`, `#57271`, `#57451`, `#52586`, `#54739`, `#64046`, `#58714`, `#61554`, `#68992`, `#56538`, `#58386`, `#62250`, `#65397`, `#68325`, `#64027`, `#57263`, `#58705`, `#374151`

## Fix status

- No merged fix on record.
- Subsystem: `agent`