i am using nodejs as my server with express. I am logging all my request and response on server. Is there any package available to read my logs and generate graphical report like how many requests we got and how many succeeded. What was the request received and responded. Is there a package which can track all these details for me?
It sounds like you're trying to get some performance metrics about your application which is great. There are many different ways you can go with this, here are a few suggestions for you to weigh up.
Non-real-time performance metrics
If you don't care about seeing the services real-time metrics you might want to create something to process them into a CSV and use something like excel or google sheets to generate graphs from them. If you need something immedietely and don't need to respond to things "in the moment" when a dip happens then this is a good quick and dirty solution.
Real-time performance metrics using SaaS software
If you want the metrics but don't want to host the systems yourself you might want to checkout services such as DataDog. They provide dashboards and graphs as a service. You can use something like statsd to get metrics into DataDog, or use their own integrations. They have a lot of integrations with cloud providers like AWS, GCP, and Azure for machine metrics (CPU etc). They also have packages for inteacting with your application itself such such as their ExpressJS package.
Real-time performance metrics using self-hosted solutions
I've often used a self-hosted approach as I find the pricing often scales a bit better. The setup is fairly simple.
Use a statsd package for all system components (nginx, nodejs, postgres, etc) to publish metrics to the statsd daemon.
The statsd daemon self-hosted somewhere (maybe a proxy cluster if you're working on large applications).
Self-hosted Graphite to consume metrics from the statsd daemon. Graphite is a software package designed for aggregating metrics and has an API for producing static graph images.
Self-hosted Grafana that pulls metrics from graphite. Grafana is a real-time dashboarding software. It allows you to create multiple dashboards that hook into various data sources such as Graphite or other time series data stores.
The self-hosting route can take a day to setup but it does mean you don't increase your costs per-host. It's also easy to put behind internal networks if that's a requirement for your organisation.
Personally, I would recommend either real-time performance metrics approaches. If your application is small and doesn't have many hosts then services like DataDog could be useful and cost effective but if you do need to scale up you'll find your costs sky rocketing. At that point you might decide to move over to a self-hosted infrastructure.
Related
I currently am creating a faster test harness for our team and will be recording a baseline from our prod sdk run and our staging sdk run. I am running the tests via jest and want to eventually fire the parsed requests and their query params to a datastore of sorts and have a nice UI around it for tracking.
I thought that Prometheus and Grafana would be able to provide that, but after getting a little POC for myself working yesterday it seems that this combo is more used for tracking application performance rather than request log handling/manipulation/tracking.
Is this the right tool to be using for what I am trying to achieve and if so might someone shed some light on where I might find some more reading aligned with what I am trying to do?
Prometheus does only one thing and it well. It collects metrics and store them. It is used for monitoring your infrastructure or applications to monitor performance, availability, error rates etc. You can write rules using PromQL expression to create alert based on conditions and send them to alert manager which can send it to Pager duty, slack, email or any ticketing system. Even though Prometheus comes with a UI for visualising the data it's better to use Grafana since it's pretty good with it and easy to analyse data.
If you are looking tools for distributed tracing you can check Jaeger
For example, if i have main application (backend) and some microservice, e.g for image cropping.
User loads an image, making request to backend, backend using rabbitmq posts new task in the queue, then image cropping service pickup a task, completes it and i need somehow notify backend.
What is options for this? I need another microservice for such notifications?
so... there are reaaaaaaly many ways to do that.
On the high level, what you want to achieve is to produce an event that 1 or more services can react to. Now depending on what you have available, you can produce the event in a number of different ways.
if you want to be completely platform independent, you can use Apache Kafka. It's a popular service specifically for what we need -> publishing events and processing them at mass-scale. Kafka can be clustered, partitioned, have multiple parallel consumers of the same type (like multiple instances of your main backend service) or different types (3 different microservices that happen to be interested in a specific event). This bad boy just has it all and is famous for that. You can set up a cluster yourself or use one that comes out-of-the-box with some of the cloud platforms (like AWS for instance), but this might be more expensive and difficult to use compared to some cloud-specific fully-managed solutions.
if you're running your stuff on the google cloud, you can make it easier and cheaper by using the PubSub service. PubSub is a fully managed service that is scaled out-of-the-box (welcome to the cloud! you don't need to scale or cluster anything by yourself!).
if you're running on AWS, you can use SNS, or a more recent alternative - EventBridge (kinda like SNS, but booooooy what can it not do?). Yeah... I would recommend EventBridge. It can just do more... with the target filtering rules, payload transformations, it can automatically trigger more things...
Azure... ehm... Event Hub... but I haven't worked with this one yet... I'm not much of an Azurer... because you know... nobody uses azure for this kind of stuff...
I have an application that is generating 3 kind of log files
Transaction log
Server log
Fatal log
and I want to analyse the performance of my server using appdynamics so what kind of data my logs should be generating to generate analytics for server health, performance, throughput, server utilization?
That's the beauty of APM is you don't need to deal with logging to get performance data. APM tools instrument the applications themselves regardless of what the code does (logging, generating metrics, etc). AppDynamics can collect log data, and provide similar capabilities to what a log analytics tool can do, but it's of less value than the transaction tracing and instrumentation you get. Your application has to be built in a supported language (Java, .NET, PHP, Python, C++, Node.js) and if it's web or mobile based you can also collect client side performance data and unify between both frontend and backend. If you have questions just reach out and I can answer them for you. Good luck!
You basically need the AppDynamics Controller and a AppDynamics Machine-Agent which will be installed on the machine to monitor. In the Machine-Agent configuration you set the URI of the controller and the agent starts to report machine metrics to the controller. Then you can configure alarms, see metrics, create dashboards, etc. I can deliver you more information if you want, but as Jonah Kowall said, take a look at the documentation as well AppDynamics Machine Agent Doc
Context
I want to develop an automated script for broker (IIB9/10) resource monitoring, capturing information about broker running status, message flows deployed, jvm usage, number of threads running, etc.
The initial thought is to have a report generated using scripts and then displayed over a browser.
Question
Can this be entirely done using only Ant scripts (i am not sure as have not explored iterative processing in Ant in detail) or a combination of Ant and batch/shell scripts is the best bet?
I know Web user interface in IIB10 does most of it but i want to add some features.
I suggest you to take a look at message flow statistics and accounting:
http://www-01.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/ac19100_.htm?lang=en
This is a feature of IIB by which it is capable of emitting resource statistics. The statistics are published to a topic in a well defined XML format. I would try solving your requirement by writing an application to read these messages and use the data in them to generate your graphs or other reports.
There is a support pack, IS03 which can give you an idea of such an application.
This will not cover everything you mentioned, for example monitoring what flows are deployed cannot be achieved like this, but it gives a comprehensive view of the load and performance of your applications:
http://www-01.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/bj10440_.htm?lang=en
And there is a resource statistics feature as well for monitoring resources used by your applications:
http://www-01.ibm.com/support/knowledgecenter/SSMKHH_9.0.0/com.ibm.etools.mft.doc/bj43310_.htm?lang=en
To get everything you will need a variety of tools I think. You can use Resource Stats and Accounting / Stats as suggested by Attila to get JVM and thread usage. The Broker publishes updates to a topic so you can create a simple subscriber to grab that info.
For deploy related info, stop / start state and so forth I would be looking at building simple Integration API or REST API applications to call from ant.
You can find documentation for these API's here:
http://www-01.ibm.com/support/knowledgecenter/SSMKHH_10.0.0/com.ibm.etools.mft.doc/be43410_.htm?lang=en
and here:
http://www-01.ibm.com/support/knowledgecenter/api/content/nl/en-us/SSMKHH_10.0.0/com.ibm.etools.mft.restapi.doc/index.html
I am conducting some research on emerging web technologies and have created a very simple Azure website which makes use of web sockets and mongo db as the database. I have managed to get all the components working together and now must perform load testing on the application.
The main criteria is the maximum user load that the app can support, at the moment there is 1 web role instance, so probably I would need to test the max user load for that instance, then try with 2 instances and so on.
I found some solutions online such as Loadstorm, however I cannot afford to pay to use these services so I need to be able to do this from my own development machine OR from another cloud service.
I have come across Visual Studio Load Tests and they seem quite useful, however it seems they require VS Ultimate and an active msdn subscription - the prerequisites are listed here. Also, from this video which shows the basics of load tests, it seems like these load tests are created completely separately from the actual web project, so does that mean I can only see metrics related to the user? i.e. I cannot see the amount of RAM being used, processor etc.
Any suggestions?
You might create a Linux virtual machine in Azure itself or another hosting provider and use ApacheBench (ab) or JMeter to do simple load testing on your application. Be aware that in such a setup your benchmark servers may be a bottleneck themselves.
Another approach is to use online load testing services wich allow some free usage, such as:
loader.io, by SendGrid Labs
LoadStorm
Blazemeter
Blitz
Neotys
Loadimpact
For load-testing, LoadStorm is very reasonably priced, especially compared to on-premises software (and has a free tier with up to 25 virtual clients). You can install code such as jmeter, but you'll still need machines (or vm's) to host and run it from, and you need to make sure that the load-generator machines aren't the bottleneck in your tests.
When you run your tests, you may want to consider separating your web tier from MongoDB. MongoDB will consume as much memory as possible (as that's what gives MongoDB its speed). In a real-world scenario, you'll likely have MongoDB in its own environment. So for your tests, I'd consider offloading MongoDB to its own instance(s), and 10gen has a Worker Role setup that's fairly straightforward to install.
Also remember that NIC bandwidth is 100Mbps per core, which could be a limiting factor on your tests, depending on how much load you're driving.
One alternative to self-hosting MongoDB: Offload MongoDB to a hoster such as MongoLab. This will allow you to test the capacity of your web app without worrying about the details around MongoDB setup, configuration, optimization, etc. Currently MongoLab offers their free tier hosted in Azure, US West and US East data centers.
Editing my response, didnt read the question carefully.
Check out this thread for various tools and links:
Open source Tool for Stress, Load and Performance testing
If you are interested in finding the performance counters of the application under test you can revisit some of the latest features added to Visual Load Cloud base load test.
http://blogs.msdn.com/b/visualstudioalm/archive/2014/04/07/get-application-performance-data-during-load-runs-with-visual-studio-online.aspx
To get more info on Visual Studio Cloud Load Testing solution - https://www.visualstudio.com/features/vso-cloud-load-testing-vs