标签：retry ProviderBase error sqlserver System DbConnectionOptions DbConnectionIntern
最近把一个项目从core2.2迁移至core3.1，在本地win上跑没有问题，但是上线到生产Ubuntu docker环境下连接不上sqlserver报以下错误。
A connection was successfully established with the server, but then an error occurred during the pre-login handshake. (provider: TCP Provider, error: 35 - An internal exception was caught)
stacktrace: at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) at System.Data.SqlClient.SqlConnection.Open() at折腾了一晚终于搞定了，原来是core3.1 image的问题，大概是core3.1默认image的ssl证书设置的问题，更改为FROM mcr.microsoft.com/dotnet/core/sdk:3.1-bionic后终于恢复正常了。
标签：retry,ProviderBase,error,sqlserver,System,DbConnectionOptions,DbConnectionIntern 来源： https://www.cnblogs.com/kklldog/p/12269225.html
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