Search no longer works after upgrading MeiliSearch

Hello. I built the wagtail-meilisearch backend for the Wagtail CMS, and I’m trying to update it to use more recent versions of MeiliSearch, but since upgrading MeiliSearch and meilisearch-python I get an error when searching the index that I had previously built…

/usr/lib/python3.6/site-packages/meilisearch/_httprequests.py in __validate(request)
     49             return HttpRequests.__to_json(request)
     50         except requests.exceptions.HTTPError as err:
---> 51             raise MeiliSearchApiError(err, request)

MeiliSearchApiError: MeiliSearchApiError. Error code: search_error. Error message: impossible to search documents; heed error; error while decoding. Error documentation: https://docs.meilisearch.com/error/search_error

The link to the error documentation at the end there is a 404, I was able to find the relevant page on the docs but it didn’t help much. Should I kill and rebuild the index from scratch after upgrading?

[drcongo]

Perfect, thanks. I actually ended up pushing a compatibility update as 0.11.0, but yeah, I take your point about how the different versions don’t necessarily mean compatibility alignment. When we all hit 1.x it would make more sense.

Thanks for all the great work on this library!

[curquiza]

Not a problem, the database (data.ms) is indeed not compatible between 2 minors versions of MeiliSearch, it means you have to re-populate your MeiliSearch instance! Snapshotting and back-up are currently implemented to solve that 🙂

One small question though, I was thinking I might update my versioning on wagtail-meilisearch to track the version numbers of your package, which is fairly close to tracking the version numbers of MeiliSearch itself. Does that sound like a good idea to you?

Hum, at the beginning meilisearch-python did indeed follow the same minor version (0.X.Y where X is the minor) of MeiliSearch. But we realized this is not convenient because the breaking changes of MeiliSearch do not necessarily involve breaking changes for meilisearch-python, and the opposite. So we stop that. Now, our SDKs (like meilisearch-python) follow their own versioning, so tracking the meilisearch-python version does not mean tracking the MeiliSearch version as well… And I’m not sure I recommend your package following the meilisearch-python version for the same reason. MeiliSearch, and meilisearch-python, are not enough stable yet: we are doing a lot of changes every week. You should follow your own versioning and when MeiliSearch will be more stable, I mean using the major, we (and you) should reconsider this possibility 🙂 (Hope I understood well your question)