Le réseau pour les développeurs >
Forums - Accueil
>
Parallel Extensions to the .NET Framework
>
how to solve this error in multithreading " A first chance exception of type 'System.Data.Odbc.OdbcException' occurred in System.Data.dll" in output window
how to solve this error in multithreading " A first chance exception of type 'System.Data.Odbc.OdbcException' occurred in System.Data.dll" in output window
- I make 10 thread in that i am going to save record to mysql and change continuesly value and save repeatedlly but i got as following msg in output window ."A first chance exception of type 'System.Data.Odbc.OdbcException' occurred in System.Data.dll"and some of threads are automatically ignored or aborted what ever happen but only 4 to 5 thread isalive at lastI am new in threading so plz help me out on thisThis occur when i use more than 4 thread .
- ModifiéDon TanMSFT, Administrateurvendredi 26 juin 2009 18:11Fixing Thread Title bug
Réponses
- Hi,
You have a concurrency bug, you have to use different connections to run that in parallel, one connection per thread.
The reason it crashes with exactly more than 4 is arbitrary and depends on system settings (number of cores) and load.
Regards,
Hugo- Proposé comme réponseStephen Toub - MSFTMSFT, Modérateurvendredi 12 juin 2009 16:59
- Marqué comme réponseStephen Toub - MSFTMSFT, Modérateurmardi 16 juin 2009 02:12
Toutes les réponses
- Hi,
You have a concurrency bug, you have to use different connections to run that in parallel, one connection per thread.
The reason it crashes with exactly more than 4 is arbitrary and depends on system settings (number of cores) and load.
Regards,
Hugo- Proposé comme réponseStephen Toub - MSFTMSFT, Modérateurvendredi 12 juin 2009 16:59
- Marqué comme réponseStephen Toub - MSFTMSFT, Modérateurmardi 16 juin 2009 02:12
