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Tag: WinDBG

olved steries #4 – SQL Won’t Shut Down!

July 8, 2023 Sean Gallardy

Issue Introduction I was sent a quite an interesting email stating that SQL Server would not shut down. Attempting to…

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Posted in: olved stery, SQL Server Filed under: Debugging, Dump, Monitoring, olved steries, olved stery, service broker, SQL Server, WinDBG

olved steries #3 – SQL Agent Eating Memory

May 21, 2023 Sean Gallardy 1 Comment

Issue Introduction I was asked if I knew any reason why SQL Agent would be using “a bunch” of memory…

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Posted in: NotASQLServerProblem, olved stery, SQL Server Filed under: Debugging, Dump, NotReallyASQLProblem, ODBC, olved steries, olved stery, SQL Server, SQL2022, WinDBG

What Are PREEMPTIVE Waits And How Can They Kill Performance

November 27, 2022 Sean Gallardy 3 Comments

Primer If you haven’t already read up on cooperative and preemptive scheduling or aren’t sure what those are, please read…

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Posted in: DMVs, Performance, SQL Server, Waits Filed under: Debugging, Demystified, Monitoring, Non-Yielding, Performance, SQL Server, Threads, Wait Types, WinDBG, Windows

Demystifying Dumps: Non-Yielding Scheduler

August 23, 2021 Sean Gallardy 6 Comments

One of the most common items that will cause a memory dump in SQL Server is a non-yielding scheduler (generally…

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Posted in: Dumps, SQL Server Filed under: Debugging, Demystified, Dump, Dumps, Scheduling, SQL Server, SQLOS, Threads, WinDBG, Workers

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