[BUG] System.OutOfMemoryException - LiteDatabase in memory

[ednsinf]

Bug not resolved. When I use LiteDatabase in memory and use bulkinsert and insert in 1k to 1k rows (using transaction our not) and shows memory erros always. Please verify thanks.
at System.IO.MemoryStream.set_Capacity(Int32 value)
at System.IO.MemoryStream.EnsureCapacity(Int32 value)
at System.IO.MemoryStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at LiteDB.Engine.ConcurrentStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at LiteDB.Engine.DiskService.WriteLogDisk(IEnumerable`1 pages)
at LiteDB.Engine.TransactionService.PersistDirtyPages(Boolean commit)
at LiteDB.Engine.TransactionService.Commit()
at LiteDB.Engine.LiteEngine.CommitAndReleaseTransaction(TransactionService transaction)
at LiteDB.Engine.LiteEngine.Commit()

[JKamsker]

Can you provide a repro?

[ednsinf]

This error occurs here
LiteDB\Engine\Engine\Transaction.cs -> AutoTransaction line 93

[ednsinf]

More details:
at System.IO.MemoryStream.set_Capacity(Int32 value)
at System.IO.MemoryStream.EnsureCapacity(Int32 value)
at System.IO.MemoryStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at LiteDB.Engine.ConcurrentStream.Write(Byte[] buffer, Int32 offset, Int32 count) in C:\LiteDB\Engine\Disk\Streams\ConcurrentStream.cs:line 75
at LiteDB.Engine.DiskService.WriteDataDisk(IEnumerable1 pages) in C:\LiteDB\Engine\Disk\DiskService.cs:line 304 at LiteDB.Engine.WalIndexService.CheckpointInternal() in C:\LiteDB\Engine\Services\WalIndexService.cs:line 349 at LiteDB.Engine.WalIndexService.TryCheckpoint() in C:\LiteDB\Engine\Services\WalIndexService.cs:line 293 at LiteDB.Engine.LiteEngine.CommitAndReleaseTransaction(TransactionService transaction) in C:\Users\e_dns\Downloads\LiteDB\LiteDB\Engine\Engine\Transaction.cs:line 118 at LiteDB.Engine.LiteEngine.AutoTransaction[T](Func2 fn) in C:\LiteDB\Engine\Engine\Transaction.cs:line 91

[ednsinf]

Sugested solution to fix Memory Alocation error and inprove performance:
File: LiteDB\Engine\Disk\StreamFactory\StreamFactory.cs - line 33

public Stream GetStream(bool canWrite, bool sequencial)
 {
     const int bufferSize = 81920; // 80 KB    

     if (_password == null)
     {
         using (var bs = new BufferedStream(_stream, bufferSize))
         {
             return new ConcurrentStream(bs, canWrite);
         }
     }
     else
     {
         using (var bs = new BufferedStream(_stream, bufferSize))
         {
             return new AesStream(_password, new ConcurrentStream(bs, canWrite));
         }
     }
 }

[JKamsker]

You are always more than welcome to open a pr including the fix and tests