This document provides an overview and introduction to MongoDB including:
- MongoDB installation using yum or binary, roles in MongoDB, and how to create users
- Basic MongoDB commands like use, show dbs, and dropDatabase
- Tracing slow queries using the database profiler and viewing results in the system.profile collection
- Important monitoring commands like db.serverStatus(), currentOp(), db.stats(), and replica set commands like rs.status() and rs.printReplicationInfo()
MongoDB is the most famous and loved NoSQL database. It has many features that are easy to handle when compared to conventional RDBMS. These slides contain the basics of MongoDB.
In this presentation, Raghavendra BM of Valuebound has discussed the basics of MongoDB - an open-source document database and leading NoSQL database.
----------------------------------------------------------
Get Socialistic
Our website: http://valuebound.com/
LinkedIn: http://bit.ly/2eKgdux
Facebook: https://www.facebook.com/valuebound/
Twitter: http://bit.ly/2gFPTi8
Since its first appearance in 2009, NodeJS has come a long way. Many frameworks have been developed on top of it. These all make our task easy and quick. It is us who need to decide which one to choose? So, here is the list of top 10 NodeJS frameworks that will help you build an awesome application.
MongoDb that holds data in form of documents and have dynamic schema.It provides indexing ,use sharding concept by this it provides scalable environment for sharded cluster.
Training MongoDB - Monitoring and OperabilityNicolas Motte
Version with audio description:
https://amadeus.box.com/shared/static/ekk7o4iyooouuva3l07gnnx3ngjawsp7.zip
Here is the procedure to open it:
1) Download the file
2) Open and uncompress the file in a new directory (click on the zip file and click on extract)
3) Open the uncompress directory
4) Open the file "Training MongoDB Monitoring and Operability.swf" with your browser
5) Follow the training
Webinar slides: Become a MongoDB DBA - What to Monitor (if you’re really a My...Severalnines
To operate MongoDB efficiently, you need to have insight into database performance. And with that in mind, we’ll dive into monitoring in this second webinar in the ‘Become a MongoDB DBA’ series. MongoDB offers many metrics through various status overviews and commands, but which ones really matter to you? How do you trend and alert on them? What is the meaning behind the metrics?
We’ll discuss the most important ones and describe them in ordinary plain MySQL DBA language. And we’ll have a look at the open source tools available for MongoDB monitoring and trending. Finally, we’ll show you how to leverage ClusterControl’s MongoDB metrics, dashboards, custom alerting and other features to track and optimize the performance of your system.
AGENDA
How does MongoDB monitoring compare to MySQL
Key MongoDB metrics to know about
Trending or alerting?
Available open source MongoDB monitoring tools
How to monitor MongoDB using ClusterControl
Demo
SPEAKER
Art van Scheppingen is a Senior Support Engineer at Severalnines. He’s a pragmatic MySQL and Database expert with over 15 years experience in web development. He previously worked at Spil Games as Head of Database Engineering, where he kept a broad vision upon the whole database environment: from MySQL to Couchbase, Vertica to Hadoop and from Sphinx Search to SOLR. He regularly presents his work and projects at various conferences (Percona Live, FOSDEM) and related meetups.
MongoDB is the most famous and loved NoSQL database. It has many features that are easy to handle when compared to conventional RDBMS. These slides contain the basics of MongoDB.
In this presentation, Raghavendra BM of Valuebound has discussed the basics of MongoDB - an open-source document database and leading NoSQL database.
----------------------------------------------------------
Get Socialistic
Our website: http://valuebound.com/
LinkedIn: http://bit.ly/2eKgdux
Facebook: https://www.facebook.com/valuebound/
Twitter: http://bit.ly/2gFPTi8
Since its first appearance in 2009, NodeJS has come a long way. Many frameworks have been developed on top of it. These all make our task easy and quick. It is us who need to decide which one to choose? So, here is the list of top 10 NodeJS frameworks that will help you build an awesome application.
MongoDb that holds data in form of documents and have dynamic schema.It provides indexing ,use sharding concept by this it provides scalable environment for sharded cluster.
Training MongoDB - Monitoring and OperabilityNicolas Motte
Version with audio description:
https://amadeus.box.com/shared/static/ekk7o4iyooouuva3l07gnnx3ngjawsp7.zip
Here is the procedure to open it:
1) Download the file
2) Open and uncompress the file in a new directory (click on the zip file and click on extract)
3) Open the uncompress directory
4) Open the file "Training MongoDB Monitoring and Operability.swf" with your browser
5) Follow the training
Webinar slides: Become a MongoDB DBA - What to Monitor (if you’re really a My...Severalnines
To operate MongoDB efficiently, you need to have insight into database performance. And with that in mind, we’ll dive into monitoring in this second webinar in the ‘Become a MongoDB DBA’ series. MongoDB offers many metrics through various status overviews and commands, but which ones really matter to you? How do you trend and alert on them? What is the meaning behind the metrics?
We’ll discuss the most important ones and describe them in ordinary plain MySQL DBA language. And we’ll have a look at the open source tools available for MongoDB monitoring and trending. Finally, we’ll show you how to leverage ClusterControl’s MongoDB metrics, dashboards, custom alerting and other features to track and optimize the performance of your system.
AGENDA
How does MongoDB monitoring compare to MySQL
Key MongoDB metrics to know about
Trending or alerting?
Available open source MongoDB monitoring tools
How to monitor MongoDB using ClusterControl
Demo
SPEAKER
Art van Scheppingen is a Senior Support Engineer at Severalnines. He’s a pragmatic MySQL and Database expert with over 15 years experience in web development. He previously worked at Spil Games as Head of Database Engineering, where he kept a broad vision upon the whole database environment: from MySQL to Couchbase, Vertica to Hadoop and from Sphinx Search to SOLR. He regularly presents his work and projects at various conferences (Percona Live, FOSDEM) and related meetups.
Secrets of World Class HR Depts | webinar with PayStream Advisors & docSTARdocSTAR
HR professionals want to spend time recruiting, on boarding and training the best candidates for their organizations. Instead, they are buried in paper.
In this presentation with PayStream Advisors, we divulge the best practices used by leading HR departments to go from a cost center, to a value center.
Start your journey to becoming a world class HR department.
In this webcast, education associations will learn how the iMIS 20 Engagement Management System (EMS)™ streamlines processes (including dues renewals and professional development), improves operational efficiency, simplifies event management and registrations, automates member communications, and boosts retention/recruiting. Join us to see why so many of your peers have chosen iMIS.
Gamut Infosystems launches new software to manage the housing owner’s association. This would help the committee members and the residents to execute a hassle-free apartment management.
For more details : http://farvisionerp.com/
Who are Carval? What does our HR, Payroll and Time Management software do? What does it look like? Everything you wanted to know about Carval - without the salesman.
Take a tour of SkillPoint™ - the most powerful and versatile Recruiting Software covering its core features including resume management, the unique workflow navigation, complete process and communication tracking, team management, and more...
Learn more at http://www.platinasoft.com/in/products/skillpoint/
Marketing To Asian Women Conference SingaporeOne9Ninety
A Presentation for Marketing to Asian Women Conference in Singapore. 8 October 2009. An overview on Internet Word of Mouth marketing and Social Media activities in Asia.
How to use GitHub to Predict the Success of your Application Grip QA
Source code analysis is useful for finding and preventing defects and improving overall product quality. But technical merit alone does not equal popularity.
Did you know you can also use your repository to learn about the effectiveness of your team?
MongoDB: Advantages of an Open Source NoSQL DatabaseFITC
Save 10% off ANY FITC event with discount code 'slideshare'
See our upcoming events at www.fitc.ca
OVERVIEW
The presentation will present an overview of the MongoDB NoSQL database, its history and current status as the leading NoSQL database. It will focus on how NoSQL, and in particular MongoDB, benefits developers building big data or web scale applications. Discuss the community around MongoDB and compare it to commercial alternatives. An introduction to installing, configuring and maintaining standalone instances and replica sets will be provided.
Presented live at FITC's Spotlight:MEAN Stack on March 28th, 2014.
More info at FITC.ca
MongoDB (from humongous) is a cross-platform document-oriented database. Classified as a NoSQL database, MongoDB eschews the traditional table-based relational database structure in favor of JSON-like documents with dynamic schemas (MongoDB calls the format BSON), making the integration of data in certain types of applications easier and faster. Released under a combination of the GNU Affero General Public License and the Apache License, MongoDB is free and open-source software.
These are the slides I presented at the Nosql Night in Boston on Nov 4, 2014. The slides were adapted from a presentation given by Steve Francia in 2011. Original slide deck can be found here:
http://spf13.com/presentation/mongodb-sort-conference-2011
Configuring MongoDB HA Replica Set on AWS EC2ShepHertz
It has always been a tedious task to choose the right configuration for MongoDB on AWS EC2
It is always challenging and takes a lots of time to make your system Production Ready.
Here is a quick guide on how to setup MongoDB on AWS EC2.
My first experience with MongoDB, to know what is and how can i use a NoSql (Non Relational) database, to speed up my website locality typehead, originally made with MySQL (Doctrine) queries
This is an introduction about the MongoDB. It includes basic MongoQueries. Not a advance level of presentation but provide nice information for the starters
Open-source agent plugin designed for MongoDB monitoring, using the tool mongostat to collect performance statistics. For more information visit the following webpage: http://pandorafms.com/index.php?sec=Library&sec2=repository&lng=en&action=view_PUI&id_PUI=319
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
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
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
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.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
2. Agenda
★ Introduction
★ MongoDB Installation
-yum
-binary
★ Roles in MongoDb
★ User creation
★ Basic commands
★ Trace Slow queries
★ Important monitoring commands
3. Introduction
What is NoSQL database?
A NoSQL or Not Only SQL database provides a mechanism
for storage and retrieval of data other than the tabular relations used
in relational databases. Motivations for this approach include simplicity of
design, horizontal scaling and finer control over availability.
What is mongodb?
MongoDB is a cross-platform, document oriented database
that provides, high performance, high availability, and easy scalability.
MongoDB works on concept of collection and document. It is also one of the
leading NoSQL database.
4. Why should we use MongoDB?
➔ Document Oriented Storage : Data is stored in the form of JSON style
documents
➔ Index on any attribute
➔ Replication & High Availability
➔ Auto-Sharding
➔ Rich Queries
➔ Fast In-Place Updates
➔ Map Reduce functions
➔ Professional Support By MongoDB
5. Database
Database is a physical container for collections. Each database gets its own set of
files on the file system. A single MongoDB server typically has multiple databases.
Collection
Collection is a group of MongoDB documents. It is the equivalent of an RDBMS table.
A collection exists within a single database. Collections do not enforce a schema.
Documents within a collection can have different fields. Typically, all documents in a
collection are of similar or related purpose.
Document
A document is a set of key-value pairs. Documents have dynamic schema. Dynamic
schema means that documents in the same collection do not need to have the same
set of fields or structure, and common fields in a collection's documents may
hold different types of data.
7. Installation - yum
1.Create a repo file as below:
vim /etc/yum.repos.d/mongodb.repo
2.For 64-bit systems type the below information in repo file and save.
[mongodb-org-3.0]
name=MongoDB 3.0 Repository
baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/
gpgcheck=0
enabled=1
8. 3.To install all the packages of mongodb issue the below command:
yum install mongodb-org
4.Start the installed mongodb server using the below command:
service mongod start
5.The server is now started and to login to the mongo shell issue the below command:
mongo
No need to include the port because we are running it on the default port(27017).
9. 6.To check the current status of mongod issue the below command:
service mongod status
7.To stop the running mongod server use the below command:
service mongod stop
8.To change the data directory with a new one,stop the current running instance and go
to the config file(/etc/mongod.conf) make the changes then save.
9.Now start the mongodb,it works with the new data directory.Make sure that the data
directory has mongod user permission.
10. 1.The mongodb binary are found in the official page(https://www.mongodb.org/downloads).
2.Download the binary using wget
wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-3.0.4.tgz
3.Now extract the downloaded file using the below command:
tar zxf mongodb-linux-x86_64-3.0.3.tgz
4.Now rename the extracted(mongodb-linux-x86 64-2.6.3) file into mongodb
mv mongodb-linux-x86 64-2.6.3 mongodb
Installation - binary
11. 5.Create a data directory using the below command
mkdir -p /home/data/db
6: Create an user mongo user using the following command
useradd mongod
7.Change the ownership of the files in the source and data directory using the following
command
chown -R mongod.mongod /home/data/new
chown -R mongod.mongod /home/data/db/
12. 7.Create a configuration file in any directory say
vim /etc/mongod.conf
8.Now add the following details as shown below:
dbpath = /home/data/db
logpath = /home/data/mongodb.log
logappend = true
port = 27017
auth = true
13. 9.Open the script file /etc/init.d/mongod
vim /etc/init.d/mongod
10.Make the change path in the CONFIGFILE="/etc/mongod.conf" with your config file
path.
11.Start the mongodb server using the below command:
service mongod start
14. 5.The server is now started and to login to the mongo shell issue the below command:
mongo
6.To check the current status of mongod issue the below command:
service mongod status
7.To stop the running mongod server use the below command:
service mongod stop
15. Roles in MongoDB
Super roles:
readAnyDatabase-reads any database
readWriteAnyDatabase-reads & writes any database
userAdminAnyDatabase-user admin role to any database
dbAdminAnyDatabase-database admin any database
DB user roles:
read-reads current database
readWrite-reads & writes current databadse
dbAdmin-access to system. collections in current db
userAdmin-create,modify roles & users in current db
dbOwner-readWrite, dbAdmin & userAdmin
16. Cluster roles:
hostManager-monitor,manage,kill & repair db
clusterMonitor-read only access to monitoring tools
clusterManager-all operations to manage db except drop
clusterAdmin- can drop & combo of clusterManager, clusterMonitor, & hostManager.
Backup roles:
backup-to take bakup
restore-to restore the backup files
17. Creating a user
Root user:
Provides access to the operations readWriteAnyDatabase,
dbAdminAnyDatabase, userAdminAnyDatabase and clusterAdmin roles combined. It does
not include any access to collections that begin with the system. prefix.Create admin users
in the admin database so that they can access all dbs.
use admin
db.createUser( { user: “root",
pwd: “rootabc",
roles: [“root” ]
} )
18. So after creating the user it is possible to login only with user beacuse we have enabled
auth.
super user:
use admin
db.createUser( { user: "superuser",
pwd: "admin",
roles: [ "userAdminAnyDatabase",
"dbAdminAnyDatabase",
"readWriteAnyDatabase"
] } )
19. Read user for a database:
use database
db.createUser(
{
user: "read",
pwd: "password",
roles:
[ {
role: "read",
db: "database"
}
]
}
)
20. monitoring user:
For the monitoring this user serves best:
db.createUser(
{
user: "monitoring",
pwd: "abc123",
roles: [ "clusterMonitor" ]
}
)
21. Verify the privilege using:
db.runCommand(
{
usersInfo:"admin",
showPrivileges:true
}
)
Kill a query:
Find the opid using currentop(_) command.
db.killOp(opid)
opid-it is the operation id of a particular query.
22. Basic commands
A few basic commands that are used in the mongodb client
are listed below:
use new_db -Uses the databasespecified
db -Displays the current database name
show dbs -Displays list of all databases
show collections -Displays list of all collections
db.dropDatabase() -Drops the current database in use
db.collection.drop() -Drops the collection mentioned
23. Trace Slow queries
Slow queries can be traced using database profiler.Mongodb has
three levels of profiling,each with unique feature.
db.setProfilingLevel(0) ->no profiling
db.setProfilingLevel(1) ->slow queries
db.setProfilingLevel(2) ->all queries
To check the current profiling level use the below command:
db.getProfilingStatus()
All the traced slow queries will be present in predefined collection
system.profile in the local database.To view the queries fire the below
command:
db.system.profile.find()
25. currentop():
Display all the documents that contains information on in-progress operations for the database
instance
To view the current active queries in the database:
db.currentOp(
{
"active" : true
}
)
To view all active read queries:
db.currentOp().inprog.forEach(
function(d){
if(d.active && d.lockType == "read")
printjson(d)
})
26. To view all active write queries:
db.currentOp().inprog.forEach(
function(d){
if(d.waitingForLock && d.lockType != "write")
printjson(d)
})
To view the queries that are waiting for a lock and not a read:
db.currentOp().inprog.forEach(
function(d){
if(d.waitingForLock && d.lockType != "read")
printjson(d)
})
27. To view the queries that are running more than ‘x(2)’ seconds in the database:
db.currentOp(
{
"active" : true,
"secs_running" : { "$gt" : 2}
}
)