Month: July 2021

Dear IT Pros,
We knew that it is normal for Domain Controller and critical servers to be in isolated network without internet access.
How could we provide the cloud-based, Azure log analytic services for these objects? The services could originate fro… Continue reading LOG SENSOR AND TELEMETRY SERVICES IN ISOLATED NETWORK→

Final Update: Friday, 23 July 2021 21:47 UTCWe’ve confirmed that all systems are back to normal with no customer impact as of 7/23, 21:50 UTC. Our logs show the incident started on 7/23, 21:00 UTC and that during the incident customers may have experi… Continue reading Application Insights and Log Analytics is Experiencing Data Latency- 07/23 – Resolved→

Both tools below – ProcDump and DebugDiag – work similarly: they can attach themselves as debuggers to a process, then, when the machine is on high-CPU, collect one or more memory dump(s) from that specific process.
Note that the tools won’t “know” wha… Continue reading Memory dumps to study a high-CPU performance issue→

 
Collect series of memory dumps for memory leak analysis of a process using the steps below.
With such series of memory dumps we can later analyze the consumption trends:

Objects accumulating in the .NET heaps and not being removed by Garbage Co… Continue reading Memory dumps to study a memory-leak performance issue→

You should be using this method when the slow processing is hard to predict, so you would rather let a monitoring tool to trigger the dump collection when issue is manifesting. If you can witness the IIS performance issue, you could apply these steps i… Continue reading Memory dumps for hang or performance issues, “automated” approach→

You should be using this method when the slow HTTP processing can be easily reproducible, when you can easily predict that a request processing would be slow.
 
An alternative to the approach below is to trigger a memory dump collection with a FRE… Continue reading Memory dumps for hang or performance issues, “manual” approach→