I love LMDB, we use it in Meilisearch (second most stared search engine on GitHub) [3] for about 7 years now. The main issues were related to write speed but we do a compaction of the database and write performances are way better after that. We never had any major DB corruption... I mean... other than when using it on Azure. Azure never works, that's expected, I suppose.
[1]: https://mastodon.social/@hyc/116838499082046918 [2]: https://bugs.openldap.org/show_bug.cgi?id=10522 [3]: https://github.com/meilisearch/meilisearch