LiteDatabase.Shrink throws 'System.Collections.Generic.KeyNotFoundException'

I get KeyNotFoundException upon any attempt to load/view database. Database file that raises KeyNotFoundException is generated by more than one process accessing one database, so this may be concurrency issue.

Snippet to reproduce:

using (var database = new LiteDatabase("sample.litedb"))
            {
                database.Shrink();
            }

or

            using (var database = new LiteDatabase("sample.litedb"))
            {
                database.Engine.FindAll(database.GetCollectionNames().FirstOrDefault()).ToArray();               
            }

etc.

Database file in question included: sample.zip

Please tell me what the possible cause is and how to avoid it in future.

[mbdavid]

Hi @Bounz, this bug was fixed but it’s not on nuget… I forgot about him… 😨 I will release new version this weekend.

[mbdavid]

Hi @md-zamolxis, I made a Recovery static method in LiteEngine to recovery datafile with link-pointer missing (like your example). It’s not 100% but works fine in my first example.

So, I recovery your data and works fine in master branch (with shrink too). You can get lastest version of LiteDB and run over your datafile to check. If you got any problem, please, open another issue about this.