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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 .
- Edited byDon TanMSFT, AdministratorFriday, June 26, 2009 6:11 PMFixing Thread Title bug
Answers
- 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- Marked As Answer byStephen Toub - MSFTMSFT, ModeratorTuesday, June 16, 2009 2:12 AM
- Proposed As Answer byStephen Toub - MSFTMSFT, ModeratorFriday, June 12, 2009 4:59 PM
All Replies
- 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- Marked As Answer byStephen Toub - MSFTMSFT, ModeratorTuesday, June 16, 2009 2:12 AM
- Proposed As Answer byStephen Toub - MSFTMSFT, ModeratorFriday, June 12, 2009 4:59 PM
