Stack trace error and giving "object reference error" as follows.Interesting is that the same code works without errors in a normal for loop.
at OracleInternal.ServiceObjects.OracleCommandImpl.ExtractAccessorValuesIntoParam(OracleParameterCollection paramColl, OracleConnection connection, Int32 paramCount, String commandText, Int64 longFetchSize, Int64 clientInitialLOBFS, Int64 internalInitialLOBFS, Int64[] scnFromExecution, Boolean bCallFromExecuteReader) at Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteReader(Boolean requery, Boolean fillRequest, CommandBehavior behavior) at Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteDbDataReader(CommandBehavior behavior) at System.Data.Common.DbCommand.ExecuteReader() at NHibernate.AdoNet.AbstractBatcher.ExecuteReader(DbCommand cmd) at NHibernate.Loader.Loader.GetResultSet(DbCommand st, QueryParameters queryParameters, ISessionImplementor session, IResultTransformer forcedResultTransformer) at NHibernate.Loader.Loader.DoQuery(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies, IResultTransformer forcedResultTransformer) at NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies, IResultTransformer forcedResultTransformer) at NHibernate.Loader.Loader.DoList(ISessionImplementor session, QueryParameters queryParameters, IResultTransformer forcedResultTransformer) Gunnar Liljas <[email protected]>, 1 Kas 2020 Paz, 03:09 tarihinde şunu yazdı: > What is the error you're getting? > > On Sat, Oct 31, 2020 at 1:44 AM [email protected] <[email protected]> > wrote: > >> Nhibernate session is not thread safe. >> >> https://nhibernate.info/doc/nh/en/index.html#transactions >> >> >> On Friday, 30 October 2020 at 12:46:48 UTC-5 [email protected] wrote: >> >>> Hi, >>> >>> I'm using rabbitmq and nhibernate in a .net core project. I run >>> asynchronous queries for database operations on some consumers. For >>> example, I am sending a single message to the queue, the message is >>> processed successfully, but when I send 100 messages, database operations >>> start getting errors after a while. >>> >>> I tested the similar structure as follows. I did database transactions >>> 100 times in a loop and it didn't give an error. But when I tried it in >>> parallel loop, it gave an error like in rabbitmq. >>> >>> Is this from Nhibernate or is there a different logic? Nhibernate not >>> thread-safe? >>> >>> Sample Code with Error : >>> >>> Parallel.For(0, 100, async act => >>> { >>> var ws = await >>> _workspaceRepository.GetWorkspaceByIdAsync(66); >>> System.Console.WriteLine($"GetWorkspaceByIdAsync : >>> {ws.Name}"); >>> var keywords = await >>> _workspaceKeywordRepository.GetForbiddenKeywordsByWorkspaceAsync(66); >>> >>> System.Console.WriteLine($"GetForbiddenKeywordsByWorkspaceAsync : >>> {keywords.Count}"); >>> var IsforbiddenKeyword = await >>> HasForbiddenKeywordAsync(66, "facebook", "instagram"); >>> System.Console.WriteLine($"HasForbiddenKeywordAsync : >>> {IsforbiddenKeyword}"); >>> }); >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "nhusers" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/nhusers/09afd1cd-0ef1-44a0-a61a-a3d102c46a7dn%40googlegroups.com >> <https://groups.google.com/d/msgid/nhusers/09afd1cd-0ef1-44a0-a61a-a3d102c46a7dn%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- > You received this message because you are subscribed to the Google Groups > "nhusers" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/nhusers/CAAOnFsOOjVYZth2pPOOOcH0uP-EnVrijvmCj1DMb9j7oARMNHQ%40mail.gmail.com > <https://groups.google.com/d/msgid/nhusers/CAAOnFsOOjVYZth2pPOOOcH0uP-EnVrijvmCj1DMb9j7oARMNHQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "nhusers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/nhusers/CAAhRLA1nWWDAZon2sSBySJdZn-emWa324TR5-c2kkAsmB95e3g%40mail.gmail.com.
