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Shayna58S1

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Registered: 2020-09-14

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Tag Archives: Availability Groups

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Tag Archives:  Availability  Groups.
Figure 1.

Synchronous Commit in AlwaysOn Availability Groups        Figure 2

Wait Statistics from one of Production Servers        Unfortunately

index maintenance is one of such processes.
Index reorgs and rebuilds may create enormous amount of transaction log records, .

Especially when LOB columns are involved

You can watch the  that illustrates how index rebuild operation put the system down in no time.
Figure 3.
HADR_SYNC_COMMIT waits before and after SQL Server 2016 upgrade        Several    Link to YouTube with the demo.
PS.

I am teaching full day SQL Server Internals class at  in Cork

Ireland on June 28th, 2019.
You can register to pre-con.
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