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SQL Server Linked Server OLEDB hung threads - login issue

我们使用从SQL Server 2014数据库到Oracle 11的链接服务器连接。如今,我们的SQL Server中大约有50多个线程挂起,等待OLEDB链接服务器连接超过3个小时,而我们从Oracle方面进行的调查确定,这些查询都没有正在Oracle中积极运行。

Issue : Multiple hung threads in SQL Server
Root-cause : Expired Oracle password. SQL Server doesn't correctly report back login errors from linked servers and gets in to a hung mode.
Resolution : Reset Oracle password, updated linked server and restarted SQL Server DB.

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