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Deadlocks on two databases interleave and show one large chained deadlock
Description
On SQL Server 2008, deadlocks on two (2) different databases of the same instance become one chained deadlock.
Cause
Microsoft has changed the deadlock monitor in SQL Server 2008.
Resolution
To return to the behavior in SQL Server 2005, implement the trace flag -T1234. This was logged by Development in the Foglight cartridge for SQL Server release notes as SSDB-2060.
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