scripts/demo.py crashes with raw pymongo traceback on MongoDB without Search (createSearchIndexes CommandNotFound)

[romiluz13]: Acceptance criteria (added 13 Oct 2026): - [ ] python scripts/demo.py --uri [mongod without mongot] exits with one clear message naming the missing Search/Vector Search capability and the options (atlas-local via docker compose, or Atlas), with no traceback. - [ ] The same message appears when the failing command is createSearchIndexes (code 59). - [ ] The existing connection-error message is unchanged.

Context: GitHub issue romiluz13/Hybrid-Search-RAG#28 (open, 1 comments, reported 2026-10-11): Found in a user-0 run. README says "Fail-Fast Support: explicit capability errors", but a plain MongoDB gives a long traceback. Steps 1. Run Community mongod 7.0.14 (replica set, no mongot), Python 3.11, uv pip install -e ".[all]". 2. python scripts/demo.py --uri "mongodb://YOUR_HOST:27017/?directConnection=true" Actual About 30 lines of pymongo traceback ending in: `` pymongo.errors.OperationFailure: no such command: 'createSearchIndexes', full error: {'ok': 0.0, 'errmsg': "no such command: 'createSearchIndexes'", 'code': 59, 'codeName': 'CommandNotFound', ...} `` The conn

Matched source

Source: GitHub issue: https://github.com/romiluz13/Hybrid-Search-RAG/issues/28 Original query: "scripts/demo.py crashes with raw pymongo traceback on MongoDB without Search (createSearchIndexes CommandNotFound)" Key terms: commandnotfound, crashes, createsearchindexes, demo, mongodb, pymongo, scripts, search, traceback, without

Source: GitHub issue romiluz13/Hybrid-Search-RAG#28 (open, 1 comments, reported 2026-10-11): Found in a user-0 run. README says "Fail-Fast Support: explicit capability errors", but a plain MongoDB gives a long traceback. Steps 1. Run Community mongod 7.0.14 (replica set, no mongot), Python 3.11, uv pip install -e ".[all]". 2. python scripts/demo.py --uri "mongodb://YOUR_HOST:27017/?directConnection=true" Actual About 30 lines of pymongo traceback ending in: `` pymongo.errors.OperationFailure: no such command: 'createSearchIndexes', full error: {'ok': 0.0, 'errmsg': "no such command: 'createSearchIndexes'", 'code': 59, 'codeName': 'CommandNotFound', ...} `` The conn

Verified resolution: [romiluz13]: Acceptance criteria (added 13 Oct 2026): - [ ] python scripts/demo.py --uri [mongod without mongot] exits with one clear message naming the missing Search/Vector Search capability and the options (atlas-local via docker compose, or Atlas), with no traceback. - [ ] The same message appears when the failing command is createSearchIndexes (code 59). - [ ] The existing connection-error message is unchanged.

Source URL: https://github.com/romiluz13/Hybrid-Search-RAG/issues/28