https://www.youtube.com/playlist?list=PLAiEy9H6ItrKC5PbH7KiELiSEIKv3tuov
-What is Prometheus?
-Difference Between Nagios vs Prometheus
-Architecture
-Alertmanager
-Time series DB
-PromQL (Prometheus Query Language)
-Live Demo
-Grafana
In this session, we will start with the importance of monitoring of services and infrastructure. We will discuss about Prometheus an opensource monitoring tool. We will discuss the architecture of Prometheus. We will also discuss some visualization tools which can be used over Prometheus. Then we will have a quick demo for Prometheus and Grafana.
Prometheus: Monitoring by "Pravin Magdum" from "Crevise". The presentation was done at #doppa17 DevOps++ Global Summit 2017. All the copyrights are reserved with the author
This is a talk on how you can monitor your microservices architecture using Prometheus and Grafana. This has easy to execute steps to get a local monitoring stack running on your local machine using docker.
In this session, we will start with the importance of monitoring of services and infrastructure. We will discuss about Prometheus an opensource monitoring tool. We will discuss the architecture of Prometheus. We will also discuss some visualization tools which can be used over Prometheus. Then we will have a quick demo for Prometheus and Grafana.
Prometheus: Monitoring by "Pravin Magdum" from "Crevise". The presentation was done at #doppa17 DevOps++ Global Summit 2017. All the copyrights are reserved with the author
This is a talk on how you can monitor your microservices architecture using Prometheus and Grafana. This has easy to execute steps to get a local monitoring stack running on your local machine using docker.
Prometheus has become the defacto monitoring system for cloud native applications, with systems like Kubernetes and Etcd natively exposing Prometheus metrics. In this talk Tom will explore all the moving part for a working Prometheus-on-Kubernetes monitoring system, including kube-state-metrics, node-exporter, cAdvisor and Grafana. You will learn about the various methods for getting to a working setup: the manual approach, using CoreOSs Prometheus Operator, or using Prometheus Ksonnet Mixin. Tom will also share some little tips and tricks for getting the most out of your Prometheus monitoring, including the common pitfalls and what you should be alerting on.
Installation of Grafana on linux ; connectivity with Prometheus database , installation of Prometheus ; Installation of node_exporter ,Tomcat-exporter ; installation and configuration of alert manager .. Detailed step by step installation and working
An Introduction to Prometheus (GrafanaCon 2016)Brian Brazil
Often what you monitor and get alerted on is defined by your tools, rather than what makes the most sense to you and your organisation. Alerts on metrics such as CPU usage which are noisy and rarely spot real problems, while outages go undetected. Monitoring systems can also be challenging to maintain, and overall provide a poor return on investment.
In the past few years several new monitoring systems have appeared with more powerful semantics and which are easier to run, which offer a way to vastly improve how your organisation operates and prepare you for a Cloud Native environment. Prometheus is one such system. This talk will look at the monitoring ideal and how whitebox monitoring with a time series database, multi-dimensional labels and a powerful querying/alerting language can free you from midnight pages.
Here is the PPT of our recently happened workshop. You can also watch on our youtube channel. here is the link -https://www.youtube.com/channel/UCeLma6SpNYH7jjYKSBNSexw
Explore your prometheus data in grafana - Promcon 2018Grafana Labs
- new Prometheus features in Grafana that were added over the last year
- instant query
- heatmap
- template variable expansion
- new Explore UI with split views and better tab completion for promQL queries
Systems Monitoring with Prometheus (Devops Ireland April 2015)Brian Brazil
Monitoring means many things to many people. This talk looks at Systems Monitoring, that is how to keep an eye on a given system and use this as part of overall management of a system. This talk will cover Why one monitors, What to monitor, How to monitor, the general design of a monitoring system and how Prometheus is a good fit for this in terms of instrumentation, consoles, alerts, general system health and sanity.
Prometheus is a next-generation monitoring system publicly announced earlier this year, developed by companies including SoundCloud, locals Boxever and Docker. Since launch there has been wide-spread interest, and many community contributions.
For more information see http://prometheus.io or http://www.boxever.com/tag/monitoring
The monolith to cloud-native, microservices evolution has driven a shift from monitoring to observability. OpenTelemetry, a merger of the OpenTracing and OpenCensus projects, is enabling Observability 2.0. This talk gives an overview of the OpenTelemetry project and then outlines some production-proven architectures for improving the observability of your applications and systems.
MeetUp Monitoring with Prometheus and Grafana (September 2018)Lucas Jellema
This presentation introduces the concept of monitoring - focusing on why and how and finally on the tools to use. It introduces Prometheus (metrics gathering, processing, alerting), application instrumentation and Prometheus exporters and finally it introduces Grafana as a common companion for dashboarding, alerting and notifications. This presentations also introduces the handson workshop - for which materials are available from https://github.com/lucasjellema/monitoring-workshop-prometheus-grafana
Cloud Native Night August 2016, Munich: Talk by Julius Volz (@juliusvolz, Co-founder at Prometheus).
Join our Meetup: www.meetup.com/cloud-native-muc
Abstract: This talk is on monitoring dynamic cloud environments with Prometheus.
Prometheus Design and Philosophy by Julius Volz at Docker Distributed System Summit
Prometheus - https://github.com/Prometheus
Liveblogging: http://canopy.mirage.io/Liveblog/MonitoringDDS2016
How to monitor your micro-service with Prometheus? How to design metrics, what is USE and RED? Metrics for a REST service with Prometheus, AlertManager, and Grafana.
Prometheus has become the defacto monitoring system for cloud native applications, with systems like Kubernetes and Etcd natively exposing Prometheus metrics. In this talk Tom will explore all the moving part for a working Prometheus-on-Kubernetes monitoring system, including kube-state-metrics, node-exporter, cAdvisor and Grafana. You will learn about the various methods for getting to a working setup: the manual approach, using CoreOSs Prometheus Operator, or using Prometheus Ksonnet Mixin. Tom will also share some little tips and tricks for getting the most out of your Prometheus monitoring, including the common pitfalls and what you should be alerting on.
Installation of Grafana on linux ; connectivity with Prometheus database , installation of Prometheus ; Installation of node_exporter ,Tomcat-exporter ; installation and configuration of alert manager .. Detailed step by step installation and working
An Introduction to Prometheus (GrafanaCon 2016)Brian Brazil
Often what you monitor and get alerted on is defined by your tools, rather than what makes the most sense to you and your organisation. Alerts on metrics such as CPU usage which are noisy and rarely spot real problems, while outages go undetected. Monitoring systems can also be challenging to maintain, and overall provide a poor return on investment.
In the past few years several new monitoring systems have appeared with more powerful semantics and which are easier to run, which offer a way to vastly improve how your organisation operates and prepare you for a Cloud Native environment. Prometheus is one such system. This talk will look at the monitoring ideal and how whitebox monitoring with a time series database, multi-dimensional labels and a powerful querying/alerting language can free you from midnight pages.
Here is the PPT of our recently happened workshop. You can also watch on our youtube channel. here is the link -https://www.youtube.com/channel/UCeLma6SpNYH7jjYKSBNSexw
Explore your prometheus data in grafana - Promcon 2018Grafana Labs
- new Prometheus features in Grafana that were added over the last year
- instant query
- heatmap
- template variable expansion
- new Explore UI with split views and better tab completion for promQL queries
Systems Monitoring with Prometheus (Devops Ireland April 2015)Brian Brazil
Monitoring means many things to many people. This talk looks at Systems Monitoring, that is how to keep an eye on a given system and use this as part of overall management of a system. This talk will cover Why one monitors, What to monitor, How to monitor, the general design of a monitoring system and how Prometheus is a good fit for this in terms of instrumentation, consoles, alerts, general system health and sanity.
Prometheus is a next-generation monitoring system publicly announced earlier this year, developed by companies including SoundCloud, locals Boxever and Docker. Since launch there has been wide-spread interest, and many community contributions.
For more information see http://prometheus.io or http://www.boxever.com/tag/monitoring
The monolith to cloud-native, microservices evolution has driven a shift from monitoring to observability. OpenTelemetry, a merger of the OpenTracing and OpenCensus projects, is enabling Observability 2.0. This talk gives an overview of the OpenTelemetry project and then outlines some production-proven architectures for improving the observability of your applications and systems.
MeetUp Monitoring with Prometheus and Grafana (September 2018)Lucas Jellema
This presentation introduces the concept of monitoring - focusing on why and how and finally on the tools to use. It introduces Prometheus (metrics gathering, processing, alerting), application instrumentation and Prometheus exporters and finally it introduces Grafana as a common companion for dashboarding, alerting and notifications. This presentations also introduces the handson workshop - for which materials are available from https://github.com/lucasjellema/monitoring-workshop-prometheus-grafana
Cloud Native Night August 2016, Munich: Talk by Julius Volz (@juliusvolz, Co-founder at Prometheus).
Join our Meetup: www.meetup.com/cloud-native-muc
Abstract: This talk is on monitoring dynamic cloud environments with Prometheus.
Prometheus Design and Philosophy by Julius Volz at Docker Distributed System Summit
Prometheus - https://github.com/Prometheus
Liveblogging: http://canopy.mirage.io/Liveblog/MonitoringDDS2016
How to monitor your micro-service with Prometheus? How to design metrics, what is USE and RED? Metrics for a REST service with Prometheus, AlertManager, and Grafana.
As one of our primary data stores, we utilize MongoDB heavily. Early last year our DevOps lead, Chris Merz, submitted some of our use cases to 10gen (http://www.10gen.com/events) as fodder for a presentation at the MongoDB conference in Boulder. The presentation went well enough at the Boulder conference that 10gen asked him to give it again at San Francisco, Seattle and again in Boulder.
Hopefully there are some nuggets in this deck that can help you in your quest to dominate MongoDB.
Monitoring in Big Data Platform - Albert Lewandowski, GetInDataGetInData
Did you like it? Check out our blog to stay up to date: https://getindata.com/blog
The webinar was organized by GetinData on 2020. During the webinar we explaned the concept of monitoring and observability with focus on data analytics platforms.
Watch more here: https://www.youtube.com/watch?v=qSOlEN5XBQc
Whitepaper - Monitoring ang Observability for Data Platform: https://getindata.com/blog/white-paper-big-data-monitoring-observability-data-platform/
Speaker: Albert Lewandowski
Linkedin: https://www.linkedin.com/in/albert-lewandowski/
___
Getindata is a company founded in 2014 by ex-Spotify data engineers. From day one our focus has been on Big Data projects. We bring together a group of best and most experienced experts in Poland, working with cloud and open-source Big Data technologies to help companies build scalable data architectures and implement advanced analytics over large data sets.
Our experts have vast production experience in implementing Big Data projects for Polish as well as foreign companies including i.a. Spotify, Play, Truecaller, Kcell, Acast, Allegro, ING, Agora, Synerise, StepStone, iZettle and many others from the pharmaceutical, media, finance and FMCG industries.
https://getindata.com
Build cloud native solution using open source Nitesh Jadhav
Build cloud native solution using open source. I have tried to give a high level overview on How to build Cloud Native using CNCF graduated software's which are tested, proven and having many reference case studies and partner support for deployment
Deploying prometheus is easy and running single instance can be sufficient for most deployments. We will talk about scalability limits of prometheus instance, when and how use shardIng, what is trickster and why you should use it, too and how thanos can help you when all hope is lost.
Get Certified as a Sumo Power User!
Video: Video: https://www.sumologic.com/online-training/#Start
Designed for users, this series deep-dives into every aspect of analyzing your data. Run as a "how-to" webinar, this session walks viewers through data searching, filtering, parsing, and advanced analytics. This series concludes with "how to"details to create dashboards and alerts to monitor your data and get Sumo Logic to work for you.
Functioning incessantly of Data Science Platform with Kubeflow - Albert Lewan...GetInData
Did you like it? Check out our blog to stay up to date: https://getindata.com/blog
The talk is focused on administration, development and monitoring platform with Apache Spark, Apache Flink and Kubeflow in which the monitoring stack is based on Prometheus stack.
Author: Albert Lewandowski
Linkedin: https://www.linkedin.com/in/albert-lewandowski/
___
Getindata is a company founded in 2014 by ex-Spotify data engineers. From day one our focus has been on Big Data projects. We bring together a group of best and most experienced experts in Poland, working with cloud and open-source Big Data technologies to help companies build scalable data architectures and implement advanced analytics over large data sets.
Our experts have vast production experience in implementing Big Data projects for Polish as well as foreign companies including i.a. Spotify, Play, Truecaller, Kcell, Acast, Allegro, ING, Agora, Synerise, StepStone, iZettle and many others from the pharmaceutical, media, finance and FMCG industries.
https://getindata.com
Things You MUST Know Before Deploying OpenStack: Bruno Lago, Catalyst ITOpenStack
Audience: Advanced
About: Real world lessons and war stories about Catalyst IT’s experience in rolling out an OpenStack based public cloud in New Zealand.
This presentation will provide tips and advice that may save you a lot of time, money and nights of sleep if you are planning to run OpenStack in the future. It may also bring some insights to people that are already running OpenStack in production.
Topics covered will include: selection of hardware for optimal costs, techniques that drive quality and service levels up, common deployment mistakes, in place upgrades, how to identify the maturity level of each project and decide what is ready for production, and much more!
Speaker Bio: Bruno Lago – Entrepreneur, Catalyst IT Limited
Bruno Lago is a solutions architect that has been involved with the Catalyst Cloud (New Zealand’s first public cloud based on OpenStack) from its inception. He is passionate about open source software, cloud computing and disruptive technologies.
OpenStack Australia Day - Sydney 2016
https://events.aptira.com/openstack-australia-day-sydney-2016/
Prometheus: A Next Generation Monitoring System (FOSDEM 2016)Brian Brazil
A look at how Prometheus's instrumentation, data model, query language, manageability and reliability make it a next generation solution.
Video: https://www.youtube.com/watch?v=cwRmXqXKGtk
Contact us: prometheus@robustperception.io
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Search and Society: Reimagining Information Access for Radical FuturesBhaskar Mitra
The field of Information retrieval (IR) is currently undergoing a transformative shift, at least partly due to the emerging applications of generative AI to information access. In this talk, we will deliberate on the sociotechnical implications of generative AI for information access. We will argue that there is both a critical necessity and an exciting opportunity for the IR community to re-center our research agendas on societal needs while dismantling the artificial separation between the work on fairness, accountability, transparency, and ethics in IR and the rest of IR research. Instead of adopting a reactionary strategy of trying to mitigate potential social harms from emerging technologies, the community should aim to proactively set the research agenda for the kinds of systems we should build inspired by diverse explicitly stated sociotechnical imaginaries. The sociotechnical imaginaries that underpin the design and development of information access technologies needs to be explicitly articulated, and we need to develop theories of change in context of these diverse perspectives. Our guiding future imaginaries must be informed by other academic fields, such as democratic theory and critical theory, and should be co-developed with social science scholars, legal scholars, civil rights and social justice activists, and artists, among others.
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
2. Takeaways:
• What is Prometheus?
• Difference Between Nagios vs Prometheus
• PromQL (Prometheus Query Language)
• Time series DB
• Grafana
• Live Demo
3. What is Prometheus?
• Prometheus is an open-source systems monitoring and alerting
toolkit originally built at SoundCloud.
• Inspired by Google’s Borgmon Monitoring System
• Written in Go .. Go, also known as Golang.. Go is syntactically
similar to C. Go is widely used in production at Google and in
many other organizations and open-source projects.
• It is now a standalone open source project and maintained
independently of any company. To emphasize this, and to clarify
the project's governance structure, Prometheus joined the CNCF
in 2016 as the second hosted project, after Kubernetes.
• The core Prometheus server is a single binary, with no
dependencies like Zookeeper, Consul, Cassandra, Hadoop or the
internet. All it needs is local disk, preferably an SSD.
• It is a systems and service monitoring system. It collects metrics
from configured targets at given intervals, evaluates rule
expressions, displays the results, and can trigger alerts if some
condition is observed to be true.
https://appinventiv.com/blog/mini-guide-to-go-programming-language/
4. ABOUT
• The Linux Foundation is the parent.
• OpenSource cloud computing for applications. Not
to confuse with OpenStack which is for
infrastructure.
• Netflix pioneered the concept of cloud native as a
practical tool
• Cloud native is a term used to describe container-
based environments. Cloud native technologies are
used to develop applications built with services
packaged in containers, deployed as microservices
and managed on elastic infrastructure through
agile DevOps processes and continuous delivery
workflows.
• August 9, 2018 - CNCF Announces Prometheus
Graduation.
https://www.cncf.io/webinars/what-is-cloud-native-and-why-does-it-exist/
5. Why Prometheus?
Multi-Dimensional Data Model – Ex: instance, service, endpoint, and method.
Operational Simplicity
Scalable data Collection
Powerful query Language.
All of these features existed in various systems.
However, Prometheus combined them all.
6. Nagios – an Overview
• The Industry Standard In IT Infrastructure Monitoring
• First launched in 1999.Nagios is officially sponsored by Nagios Enterprises.
• Nagios Core, is a free and open-source computer-software application that monitors systems,
networks and infrastructure. Nagios offers monitoring and alerting services for servers, switches,
applications and services. It alerts users when things go wrong and alerts them a second time when
the problem has been resolved.
• NDOUTILS -The NDOUTILS addon is designed to store all configuration and event data from Nagios
in a database. It requires a MariaDB or MySQL database for storing Nagios Core data .
• RRDtool and Highcharts are included to create customizable graphs that can be displayed in
dashboards.
• (Nagios Core vs Nagios XI) Nagios Core is open source whereas Nagios XI is a commercial,
enterprise version of Nagios.
• Historical performance data that is used to generate graphs are stored in Round Robin Database
(RRD) files.
• Rrdcached - On a Nagios XI server, rrdcached collects host and service performance data and then
flushes it to the appropriate rrd files at a specified interval. This reduces the amount of disk activity
needed to keep a large number of rrd files current for performance graphs.
7. Nagios vs Prometheus
• Nagios is primarily about alerting based on the exit codes of
scripts.
• Nagios is host-based. Each host can have one or more services
and each service can perform one check.
• There is no notion of labels or a query language.
• Nagios has no storage per-se, beyond the current check state.
There are plugins which can store data such as for
visualisation.
• Nagios XI - Using Grafana With Existing Performance Data:
Grafana uses the existing performance data files (RRD) to
generate the graphs.
• Overall, Nagios is suitable for basic monitoring of small and/or
static systems where blackbox probing is sufficient. If you want
to do whitebox monitoring, or have a dynamic or cloud based
environment, then Prometheus is a good choice.
11. Architecture - Explanation
• Prometheus scrapes metrics from instrumented jobs, either directly or via an
intermediary push gateway for short-lived jobs. It stores all scraped samples
locally and runs rules over this data to either aggregate and record new time
series from existing data or generate alerts.
• Also pulling is slightly better than pushing.
• For cases where you must push, we offer the Pushgateway as occasionally you
will need to monitor components which cannot be scraped. The Prometheus
Pushgateway allows you to push time series from short-lived service-level batch
jobs to an intermediary job which Prometheus can scrape.
• Limitation:-Not for Billing using the status collected for monitoring as as the
collected data will likely not be detailed and complete enough.
• Grafana or other API consumers can be used to visualize the collected data.
12. Alertmanager
• Grouping: Useful during larger outages when many systems fail at once and
hundreds to thousands of alerts may be firing simultaneously
• Inhibition is a concept of suppressing notifications for certain alerts if certain
other alerts are already firing.
• Silences are a straightforward way to simply mute alerts for a given time
• Following external systems are supported:
Email
Generic Webhooks
HipChat
OpsGenie
PagerDuty
Pushover
Slack
• To make Prometheus highly available: Run identical Prometheus servers on two or
more separate machines. Identical alerts will be deduplicated by the Alertmanager.
13. Time Series Database (TSDB)
• What is a time series -The value of something tracked over time.
• Labels (key/value pairs). Identifier -> (t0, v0), (t1, v1), (t2, v2), (t3, v3), .... Each data
point is a tuple of a timestamp and a value. For the purpose of monitoring, the
timestamp is an integer and the value any number.
Example : - This could be temperature once a day, or requests to your API once a minute.
The latter could look like:
my_api_requests: 5@1:00PM 2@1:01PM 18@1:02PM
• Fundamentally the same as the one of OpenTSDB
• Prometheus includes a local on-disk time series database, but also optionally
integrates with remote storage systems
• Ingested samples are grouped into blocks of two hours. Each two-hour block
consists of a directory containing one or more chunk files that contain all time
series samples for that window of time, as well as a metadata file and index file
(which indexes metric names and labels to time series in the chunk files). When
series are deleted via the API, deletion records are stored in separate tombstone
files (instead of deleting the data immediately from the chunk files).
• limitation of the local storage is that it is not clustered or replicated. Hence Using
RAID for disk availiablity, snapshots for backups, capacity planning, etc, is
recommended for improved durability. Alternatively, external storage may be used
via the remote read/write APIs.
14. TSDB Configuration:-
• Prometheus has several flags that allow configuring the local storage.
The most important ones are:
--storage.tsdb.path: This determines where Prometheus writes its database. Defaults to data/.
--storage.tsdb.retention.time: This determines when to remove old data. Defaults to 15d.
--storage.tsdb.retention.size: This determines the maximum number of bytes that storage blocks can use The oldest
data will be removed first. Defaults to 0 or disabled.
--storage.tsdb.wal-compression: This flag enables compression of the write-ahead log (WAL). Depending on your data,
you can expect the WAL size to be halved with little extra cpu load.
• TSDB Storage as follows
16. • Prometheus means Forethinker
• Prometheus is Titan. i.e A titan is an
extremely important person. Albert Einstein
was a titan in the world of science.
• A Trickster figure, he was a champion of
mankind known for his wily intelligence,
who stole fire from Zeus and the gods and
gave it to mortals.
• Prometheus is a 2012 science fiction film of
spaceship.
Are You a Titan or just wearing Titan Watch?
17. Let’s Start - Prometheus
• Prerequisite: Configure Prometheus.yml (i.e scrape interval, target server to be monitored, alertmanager configuration, etc)
• Config file is written in YAML format. Prometheus can reload its configuration at runtime. A configuration reload is triggered by sending a
SIGHUP to the Prometheus process or sending a HTTP POST request to the /-/reload endpoint (when the --web.enable-lifecycle flag is
enabled).
• The kill command can send all of the above signals to commands and process. However, commands only give response if they are
programmed to recognize those signals. Particularly useful signals include: There are 64 signal(kill –l), Some are as below
SIGHUP (1) - Hangup detected on controlling terminal or death of controlling process.
SIGKILL (9) - Kill signal i.e. kill running process.
SIGSTOP (19) - Stop process.
SIGCONT (18) - Continue process if stopped.
To send a kill signal to PID # 1234 use: kill -9 1234
To send a kSIGHUP signal to PID # 1234 use: kill -1 1234
18. Prometheus – Exporter
• Exporters bridge the gap between Prometheus and system which don’t export metrics
in the Prometheus format.
• There are official & externally contributed exporter available like for mysql, oracledb,
DELL/IBM Hw, jira,Hadoop storage, apache http,AWS APIs, Docker,SNMP etc
https://prometheus.io/docs/instrumenting/exporters/
• Build Your Own Exporter:-
Important Cronjob success or not.
Any New Error from timesten db - error.log
Online Selling Website perspective – Total order success vs failure.
Order Data Metric - Dashboard Integration
Important file received/processed or not.
Top selling product/category
5star to 1star review metric analysis.
etc.
20. PromQL - Prometheus Query Language
• Prometheus provides a functional query
language.
• It lets user select and aggregate time series data
in real time. The result of an expression can either
be shown as a graph, viewed as tabular data in
Prometheus's expression browser, or consumed
by external systems via the HTTP API.
• The Prometheus query language allows you to
slice and dice the dimensional data for ad-hoc
exploration, graphing, and alerting.
21. Time Series Selectors
• Instant Vector - One Value per time series Guaranteed. In the simplest
form, only a metric name is specified
• Range Vector - Any Number of Value between two timestamps. a
range duration is appended in square brackets ([]) at the end of a
vector selector
22. Metric types
• Counter :A counter is a cumulative metric that
represents a single monotonically increasing counter
whose value can only increase or be reset to zero on
restart. For example, you can use a counter to represent
the number of requests served, tasks completed, or
errors.
• Gauge :A gauge is a metric that represents a single
numerical value that can arbitrarily go up and down. i.e
temperatures or current memory usage
• Histogram :A histogram samples observations (usually
things like request durations or response sizes) and
counts them in configurable buckets.
• Summary:Similar to a histogram, a summary samples
observations (usually things like request durations and
response sizes).
https://povilasv.me/prometheus-tracking-request-duration/
23. Operators
• Binary Comparison Operators:
== , !=, >,<,>=,<=
• Binary Arithmetic Operators:
+, -, *, /,% (modulo), ^(power/exponentiation)
• Logical/set Binary operators:
and (intersection),or (union),unless (complement)
• Built-in aggregation operators:
sum, min, max, avg, stddev,stdvar,count, count_values, bottomk, topk, quantile
- These operators can either be used to aggregate over all label dimensions or preserve
distinct dimensions using,
by, without
https://blog.pvincent.io/2017/12/prometheus-blog-series-part-2-metric-types/
24. Basic Functions
• PromQL has 46 functions & growing…
• Most of the mathematical functions &
day, month, year, minute, hour, time are
avilable.
• In Prometheus perspective, we use
below mostly,
Rate()
irate() -irate should only be used when graphing
volatile, fast-moving counters.
increase()
label_join()/label_replace()
<aggregation>_over_time()
min_over_time
max_over_time
avg_over_time
sum_over_time
count_over_time
25. Wow! Functions
• delta()
• holt_winters()
• predict_linear()
• clamp_max()
• clamp_min()
• histogram_quantile()
Holt-Winters
https://www.otexts.org/fpp/7/5
New Relic Doc
Averages unfortunately have the big drawback
of hiding distribution and prevent the discovery
of outliers/deviation.
Quantiles are better measurement for this kind
of metrics, as they allow to understand
distribution. For example, if the request latency
0.5-quantile (50th percentile) is 100ms, it
means that 50% of requests completed under
100ms. Similarly, if the 0.99-quantile (99th
percentile) is 4s, it means that 1% of requests
responded in more than 4s.
predict_linear()
26. Demo Queries
• max by(instance)(node_filesystem_size_bytes)
• max without(device, fstype, mountpoint)(node_filesystem_size_bytes)
• sum without(device, fstype, mountpoint)(node_filesystem_size_bytes)
• sum(node_filesystem_size_bytes)
• round(sum(node_filesystem_size_bytes)/1024/1024/1024)
• round(sum by(instance, device)(node_filesystem_size_bytes)/1024/1024/1024)
• rate(node_load1[5m])
• rate(node_cpu_seconds_total{mode="system"}[5m])
• min_over_time(node_load1[5m])
• max_over_time(node_load1[5m])
• avg_over_time(node_load1[5m])
• sum_over_time(node_load1[5m])
• count_over_time(node_load1[5m])
• delta(node_hwmon_temp_celsius[1h])
• clamp_max(node_load1,1.2)
• clamp_min(clamp_max(node_load1,1.2),1.05)
• predict_linear(node_load1[1h],4*3600)
• quantile without(cpu)(0.9, rate(node_cpu_seconds_total{mode="system"}[5m]))
• topk(3, sum by (mode) (node_cpu_seconds_total))
• bottomk(3, sum by (le) (alertmanager_http_request_duration_seconds_bucket))
27. Grafana – Demo
• Download and install grafana as described in url https://grafana.com/grafana/download/beta
• Post install, Follow as below to start, stop or check status accordingly. There are different way
too, follow installation guide for more data (attached logs)
gmv-evo@gmvevo:~/Downloads$ sudo systemctl start grafana-server
gmv-evo@gmvevo:~/Downloads$ sudo systemctl status grafana-server
gmv-evo@gmvevo:~/Downloads$ sudo systemctl stop grafana-server
• Open Url as follows and configure login process -http://localhost:3000.
• Configure Prometheus dashboard as generic and import Node Exporter dashboard: -
https://grafana.com/grafana/dashboards/1860
29. Out of Syllabus – Trigger to look out
• Remote Endpoints and Storage - long term storage
• Alertmanager - Webhook Receiver (Gmail, etc)
• Prometheus Concerns - fixed by Cortex and Thanos
https://grafana.com/blog/2019/11/21/promcon-recap-two-
households-both-alike-in-dignity-cortex-and-thanos/
• Prometheus open bugs and fixes:
https://github.com/prometheus/prometheus/issues?
• Cloud Monitoring : Nagios vs. Prometheus
• Google's mtail - Extract Prometheus metrics from application logs.
• Prometheus is a system to collect and process metrics, not an event
logging system - ELK stack Answer.
30. Study Material –Free & Cost
Free
• https://prometheus.io/docs/introduction/overview/
• https://promcon.io/2019-munich/stream/
• Prometheus Monitoring : The Definitive Guide in 2019
• subreddit collecting all Prometheus-related resources on the internet.
• https://training.robustperception.io/ - Introduction to Prometheus
• Soundcloud - What makesPrometheusa “next generation”monitoring
system?
Cost
• Understanding PromQL by Robust Perception
• Prometheus: Up & Running by oreilly
31. Thanks for Listening!!!
be happy and make happy @how? given by my aasan:-
Go below what you have # Dream above what you have # First love what you have
Spread info what you have # Get info what others have # Help as per what you have