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Unhandled UI exception due to database being locked

See original GitHub issue


I recently reinstalled EDD with the updated version. So I had to redownload everything like EDSM Star database (which takes a phenomenal time ^^’ ) and during the process this appeared. (i’m not even sure if this is the reason for the error)

Thanks in advance !

Additional Information

image I take this opportunity to ask you if it’s normal that the number on the left doesn’t move. Each million that is added to the right makes me despair even more…

Exception Details:

EDDiscovery v16.0.5.0 There was an unhandled UI exception.

==== BEGIN ====
code = Busy (5), message = System.Data.SQLite.SQLiteException (0x800007AF): database is locked
database is locked
  à System.Data.SQLite.SQLite3.Step(SQLiteStatement stmt)
  à System.Data.SQLite.SQLiteDataReader.NextResult()
  à System.Data.SQLite.SQLiteDataReader..ctor(SQLiteCommand cmd, CommandBehavior behave)
  à System.Data.SQLite.SQLiteCommand.ExecuteReader(CommandBehavior behavior)
  à System.Data.SQLite.SQLiteCommand.ExecuteScalar(CommandBehavior behavior)
  à SQLiteCommandExtensions.ExecuteScalar[T](DbCommand cmd, T def) dans C:\Code\EDDiscovery\BaseUtilities\SQLLite\SQLLite\SQLExtensions.cs:ligne 93
  à EliteDangerousCore.DB.SystemsDB.FindAlias(Int64 edsmid, String name, SQLiteConnectionSystem cn) dans C:\Code\EDDiscovery\EliteDangerousCore\EliteDangerous\SystemDB\SystemsDBEDSMSystemAliases.cs:ligne 153
  à EliteDangerousCore.DB.SystemCache.FindSystemInCacheDB(ISystem find, SQLiteConnectionSystem cn) dans C:\Code\EDDiscovery\EliteDangerousCore\EliteDangerous\SystemDB\SystemCache.cs:ligne 146
  à SQLLiteExtensions.Job`1.Exec() dans C:\Code\EDDiscovery\BaseUtilities\SQLLite\SQLLite\SQLAdvProcessingThread.cs:ligne 355
===== END =====

Issue Analytics

  • State:closed
  • Created 6 months ago
  • Comments:9 (7 by maintainers)

github_iconTop GitHub Comments

klightspeedcommented, Mar 28, 2023

Do AV programs put a lock on files while scanning them?

database is locked means that another thread or process has the database opened using the SQLite library using a lock that is incompatible with the lock being requested - e.g. in this case where another thread or process is writing to the database using the SQLite library while the UI thread has requested a read from the database.

A sharing violation will result in unable to open database file Trying to read a part of the database that has an OS-level range lock will result in disk I/O error

robbyxp1commented, Mar 30, 2023

A change has been introduced to keep trying even if the disk is very slow. This may, or may not, fix something in some peoples systems.

Closing now, issue noted, will be monitored.

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