DotNet Core NewRelic Integration

-

Prerequisites

  • docker
  • vscode
  • vscode plugin: Docker
  • already have created a dotnet core application
  • already have a Dockerfile

Add the newrelic agent to the docker image

Add these sections to your Dockerfile, directly after the FROM base AS final.

Install the agent

RUN apt-get update && apt-get install -y wget ca-certificates gnupg \
&& echo 'deb http://apt.newrelic.com/debian/ newrelic non-free' | tee /etc/apt/sources.list.d/newrelic.list \
&& wget https://download.newrelic.com/548C16BF.gpg \
&& apt-key add 548C16BF.gpg \
&& apt-get update \
&& apt-get install -y newrelic-netcore20-agent

Enable the Nuget agent

ENV CORECLR_ENABLE_PROFILING=1 \
CORECLR_PROFILER={36032161-FFC0-4B61-B559-F6C5D41BAE5A} \
CORECLR_NEWRELIC_HOME=/usr/local/newrelic-netcore20-agent \
CORECLR_PROFILER_PATH=/usr/local/newrelic-netcore20-agent/libNewRelicProfiler.so \
NEW_RELIC_LICENSE_KEY=REPLACE_THIS_WITH_YOUR_NEWRELIC_LICENCE_KEY \
NEW_RELIC_APP_NAME='REPLACE THIS WITH YOUR APPLICATION NAME'

Test

Build and run your docker image using terminal or the vscode Docker plugin.

Load up your web-api and hit an endpoint. It takes a minute or so for the logs to be sent to NewRelic’s servers and to appear in your charts.

enter image description here

Popular posts from this blog

Mutation Testing with Stryker

-
Image
This is a first look into Stryker Mutator . As for what it does; you might have already done this yourself, albeit manually, when reviewing someones PR. You’re considering how effective a given test is, so you pull the code and run the tests, and sure enough, you see the test pass and 100% code coverage. You’re still not convinced so you tweak the code in some minor way, expecting the test to fail. Surprise! It still passes and you still have 100% code coverage! So this is a bad set of tests! So what is Stryker Mutation testing? Consider the following example code (taken from the stryker docs ). function isUserOldEnough ( user ) { return user . age >= 18 ; } When Stryker is run against this code base, it will automatically mutate the return statement, recompile your application, and re-run the tests. For every mutation that Styker tries, a test MUST fail, otherwise we have a mutant. Here’s what mutations Stryker will make here: /* 1 */ return user . age ...
Read more

Taking a memory dump of a w3wp process

-
Taking a memory dump of a w3wp process Taking a memory dump of an IIS worker process in a live system can be problematic, as IIS will kill the process if it has been suspended for more than 60 seconds. Only use these steps if your application is on a high availability cluster, else you’ll take your app down! copy sysinternals procdump.exe and pssuspend.exe to target machine create powershell file with: $iispid = Get-Process svchost | ? { $_ . modules . ModuleName -eq "iisw3adm.dll" } | Select - First 1 - ExpandProperty Id $workerpid = Get-Process w3wp | Sort ws - Descending | Select - First 1 - ExpandProperty Id & ".\pssuspend.exe" $iispid Write-Output "Creating memory dump for w3wp PID $workerpid " & ".\procdump.exe" - ma $workerpid & ".\pssuspend.exe" $iispid - r (taken from stackoverflow ) 3) check the w3wp process has reached the high level of RAM usage that you’re intending to...
Read more

sp_blitzCache

-
Some more notes after watching Brent’s How I Use the First Responder Kit: sp BlitzCache . This one shows you the most resource-intensive queries on SQL Server without running a profiler trace . Sounds pretty neat! EXEC sp_blitzCache @SortOrder = 'CPU' , @Top = 10 This outputs the execution plans of the 10 most expensive queries in the query plan cache. By default this is sorted by CPU, but can commonly be set to reads, writes or duration. There are a bunch of other options, which you can see if you add the @Help = 1 parameter. The Warnings column will give you hints as to what the problem might be, for example missing indexes. These warnings are prioritised in the second result set. For example my top warning was: 10 Execution Plans Forced Serialization http://www.brentozar.com/blitzcache/forced-serialization/ Something in your plan is forcing a serial query. Further investigation is needed if this is not by design. 25 If like me, you still have a way to go...
Read more