.NET monitoring & observability

Metric name	Metric key	Description	Unit
Total bytes in all heaps	dotnet.memory.numberbytesinallheaps	This counter is the sum of four other counters; Gen 0 Heap Size; Gen 1 Heap Size; Gen 2 Heap Size and the Large Object Heap Size. This counter indicates the current memory allocated in bytes on the GC Heaps.	Byte
Gen 0 collections	dotnet.memory.numbergen0collections.count	This counter displays the number of times the generation 0 objects (youngest; most recently allocated) are garbage collected (Gen 0 GC) since the start of the application. Gen 0 GC occurs when the available memory in generation 0 is not sufficient to satisfy an allocation request. This counter is incremented at the end of a Gen 0 GC. Higher generation GCs include all lower generation GCs. This counter is explicitly incremented when a higher generation (Gen 1 or Gen 2) GC occurs. _Global_ counter value is not accurate and should be ignored. This counter displays the last observed value.	Count
Gen 1 collections	dotnet.memory.numbergen1collections.count	This counter displays the number of times the generation 1 objects are garbage collected since the start of the application. The counter is incremented at the end of a Gen 1 GC. Higher generation GCs include all lower generation GCs. This counter is explicitly incremented when a higher generation (Gen 2) GC occurs. _Global_ counter value is not accurate and should be ignored. This counter displays the last observed value.	Count
Gen 2 collections	dotnet.memory.numbergen2collections.count	This counter displays the number of times the generation 2 objects (older) are garbage collected since the start of the application. The counter is incremented at the end of a Gen 2 GC (also called full GC). _Global_ counter value is not accurate and should be ignored. This counter displays the last observed value.	Count
Total commited bytes	dotnet.memory.numbertotalcommittedbytes	This counter displays the amount of virtual memory (in bytes) currently committed by the Garbage Collector. (Committed memory is the physical memory for which space has been reserved on the disk paging file).	Bytes
Total reserved bytes	dotnet.memory.numbertotaleeservedbytes	This counter displays the amount of virtual memory (in bytes) currently reserved by the Garbage Collector. (Reserved memory is the virtual memory space reserved for the application but no disk or main memory pages have been used.)	Bytes
Percent of time in GC	dotnet.memory.percenttimeingc	The percentage of elapsed time that was spent in performing a garbage collection (GC) since the last GC cycle. This counter is usually an indicator of the work done by the Garbage Collector on behalf of the application to collect and compact memory. This counter is updated only at the end of every GC and the counter value reflects the last observed value; its not an average.	Percent
Gen 0 heap size	dotnet.memory.gen0heapsize	This counter displays the maximum bytes that can be allocated in generation 0 (Gen 0); its does not indicate the current number of bytes allocated in Gen 0. A Gen 0 GC is triggered when the allocations since the last GC exceed this size. The Gen 0 size is tuned by the Garbage Collector and can change during the execution of the application. At the end of a Gen 0 collection the size of the Gen 0 heap is infact 0 bytes; this counter displays the size (in bytes) of allocations that would trigger the next Gen 0 GC. This counter is updated at the end of a GC; its not updated on every allocation.	Bytes
Gen 1 heap size	dotnet.memory.gen1heapsize	This counter displays the current number of bytes in generation 1 (Gen 1); this counter does not display the maximum size of Gen 1. Objects are not directly allocated in this generation; they are promoted from previous Gen 0 GCs. This counter is updated at the end of a GC; its not updated on every allocation.	Bytes
Gen 2 heap size	dotnet.memory.gen2heapsize	This counter displays the current number of bytes in generation 2 (Gen 2). Objects are not directly allocated in this generation; they are promoted from Gen 1 during previous Gen 1 GCs. This counter is updated at the end of a GC; its not updated on every allocation.	Bytes
Number of current logical threads	dotnet.locksandthreads.numberofcurrentlogicalthreads	This counter displays the number of current .NET thread objects in the application. A .NET thread object is created either by new System.Threading.Thread or when an unmanaged thread enters the managed environment. This counters maintains the count of both running and stopped threads. This counter is not an average over time; it just displays the last observed value.	Count
Number of current physical threads	dotnet.locksandthreads.numberofcurrentphysicalthreads	This counter displays the number of native OS threads created and owned by the CLR to act as underlying threads for .NET thread objects. This counters value does not include the threads used by the CLR in its internal operations; it is a subset of the threads in the OS process.	Count
Current queue length	dotnet.locksandthreads.currentqueuelength	This counter displays the total number of threads currently waiting to acquire some managed lock in the application. This counter is not an average over time; it displays the last observed value.	Count
Contention rate per second	dotnet.locksandthreads.contentionratepersec	Rate at which threads in the runtime attempt to acquire a managed lock unsuccessfully. Managed locks can be acquired in many ways; by the "lock" statement in C# or by calling System.Monitor.Enter or by using MethodImplOptions.Synchronized custom attribute.	PerSecond

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Microsoft IIS

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Databricks Workspace

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Uptime

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UPS Device

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Google App Engine (integration)

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[Deprecated] Kubernetes PVCs

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Google Cloud Storage Transfer

Get insights into Google Cloud Storage Transfer metrics collected from the Google Operations API to ensure health of cloud infrastructure.

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NVIDIA GPU

Monitor base parameters of the GPU, including load, memory and temperature

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Oracle Database

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Dell iDRAC

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Azure Managed Apache Cassandra

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Google Firestore in Datastore mode

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Redis (2.0)

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PHP-FPM

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Timedrift Monitoring

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Apache Kafka

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MongoDB (local or remote monitoring)

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Connection Pools: C3P0

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AWS Entities for Metric Streaming

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MongoDB Atlas

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Microsoft SQL Server

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Google Apigee

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Connection Pools: WebSphere Liberty

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Google Cloud Composer

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Google Cloud Spanner

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IBM i

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.NET

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Google Cloud's operations suite

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Google Vertex AI

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Oracle Exadata

Monitor Oracle Exadata systems for performance, usage and availability

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