Scaling Up Monitoring
How do we design a monitoring system? The Amazon Prime team realized they didn't do a good job and changed their architecture.
2023-05-31
172 reads
Performance Monitoring
The Complexity of Metrics
We need to monitor our servers, but individual metrics have more complexity than just setting simple limits for their readings.
2023-02-06 (first published: 2023-01-30)
318 reads
SQL Server memory node memory footprints
Querying perfmon data to track memory usage patterns on NUMA nodes
2019-05-31
Extended Events Max Dispatch Latency
The max_dispatch_latency property is the maximum duration that an event, once captured, would reside in the buffer before written to the target. The default for this property is 30 seconds, which is fine in practice but for live demos you can consider reducing it (minimum is 1 second).
2019-05-31
Average Page Life Expectancy
A useful script that I wrote that will sample the DMV sys.dm_os_performance_counters table to provide an average PLE captured in (1) minute intervals.
2010-12-01 (first published: 2010-11-16)
1,681 reads
Performance Counter DMV sys.dm_os_performance_counters
By querying a single DMV, sys.dm_os_performance_counters to be precise, you can collect counter information that you would receive from PerfMon for the various SQL Server counters.
2010-06-29
3,559 reads
Automating Performance Monitor Statistics Collection for SQL Server and Windows
You have about 100 SQL Servers installed in your production environment. You have performance problems on few of the servers, but they happen during the time when you are not watching the servers. So, how can you automate performance statistics collection on all the servers around the clock so we have the statistics for 24/7/365.
2009-07-08
3,919 reads
Collecting performance counters and using SQL Server to analyze the data
Quite frequently I find myself in situation where I need to get detailed information on performance monitor counters. For example I need to determine which processes are consuming all CPU at certain times.
2009-04-09
3,720 reads
2008-07-31
3,053 reads
Investigating SQL Server 2008 Wait Events with XEVENTS
Some reasons for the slow-running of database applications aren't obvious. Occasionally, even the profiler won't tell you enough to remedy a problem, especially when a SQL Statement is being forced to wait. Now, in SQL Server 2008, come XEvents, which allow you to look at those waits that are slowing your SQL Statements. Mario Broodbakker continues his series about SQL Server Wait Events
2008-07-30
2,343 reads
Blogs
AI: Blog a Day – Day 4: Transformers – Encoder, Decoder, and Attention
By Vinay Thakur
Continuing from Day 3 where we covered LLM models open/closed and their parameters, Today...
Flyway Tips: Multiple Projects
By Steve Jones
One of the nice things about Flyway Desktop is that it helps you manage...
What DevOps Look Like in Microsoft Fabric
By HeyMo0sh
Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...
Forums
Can an Azure App Service Managed Identity be used for SQL Login?
I'm fairly certain I know the answer to this from digging into it yesterday,...
Azure Synapse database refresh
Hi Team, I am trying to refresh the Azure Synapse Dedicated pool from production...
how to write this query?
hi everyone I am not sure how to write the query that will produce...
Question of the Day
Fun with JSON I
I have some data in a table:
CREATE TABLE #test_data
(
id INT PRIMARY KEY,
name VARCHAR(100),
birth_date DATE
);
-- Step 2: Insert rows
INSERT INTO #test_data
VALUES
(1, 'Olivia', '2025-01-05'),
(2, 'Emma', '2025-03-02'),
(3, 'Liam', '2025-11-15'),
(4, 'Noah', '2025-12-22');
If I run this query, how many rows are returned?
SELECT *
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t; See possible answers