Skip to Content
  • My LAST secret (must sign an NDA to see it…)
    This isn’t something I want everyone to see…

    “You’re making us sign an NDA?!?”

     

    I know, I know… seems like a lot, but I promise it’s for good reasons. 

     

    One - it automatically “weeds” out the tire kickers. This information is TOO JUICY and amazing to share it with ‘tire kickers’...  We want serious people only!

     

    Two - By signing the NDA, you are making a small commitment to us that you can be trusted with the information you’ll receive in the demonstration.

     

    Listen… I'll be showing you how to “white label” the software from my new $40M business AND… our other funnel building software products for free… AND you get to keep 100% of the sales

     

    If you realize how big of a deal this is… You’ll understand why I’m asking for an NDA.  This is BIG!

     

    Click the link below to see the date and times. ⬇️

     

    REGISTER FOR THE FREE ‘WHITE LABEL’ DEMONSTRATION →

    Now…

     

    If you’re ready to learn how to “white label” and sell our products as your own and build a revenue stream without putting in nearly as much work…

     

    …then I suggest you hurry up and register for my ‘Last Secret’ LIVE demonstration by clicking on the link below!

     

    You’ll see the date and times when you click the link below. ⬇️

     

    REGISTER FOR THE FREE ‘WHITE LABEL’ DEMONSTRATION  →

     

    See you in the workshop,

     

    Russell Brunson

     

    P.S. Don’t forget, you’re just one funnel away…

     

    Marketing Secrets
    3443 W Bavaria St
    Eagle, ID 83616
    United States

    by "Russell Brunson" <newsletter@marketingsecrets.com> - 12:46 - 12 Mar 2025
  • Wondering if “white label” is for you?
    Do you like easy sales without a product…?

    Hey it’s Todd, and I’ll keep this short. 

     

    Russell is hosting a “white label” demonstration/workshop for FREE and THIS WEEK ONLY… showing you how you can “white label” our products as your own and keep 100% of the sales!!

     

    It’s unlike anything we’ve ever done before and I just got word that the spots are filling up faster than anything we’ve done in YEARS…

     

    If you haven’t signed up as yet, click or tap the link below now: 

     

    GO HERE TO REGISTER FOR THE ‘WHITE LABEL’ WORKSHOP →

    White labeling is great for NUMEROUS reasons, but like I said, I’ll keep this short so I’m going to quickly share the BIG two reasons you should attend…

     

    Reason 1 - if you’re a beginner, you’ll learn how to begin making sales within 48 hours WITHOUT needing your own product – we’ll supply the product, the sales page, EVERYTHING… AND you keep 100% of the sales!!

     

    Reason 2 - if you’re a veteran business owner, this is a great “bolt-on business” you can easily link up to your businesses online for easy, “no hands” commissions without putting in a fraction of the work.

     

    This is seriously an amazing opportunity I don’t want you to miss out on…

     

    So, stop whatever it is you’re doing right now and head over to the link below and register for the workshop!

     

    Click the link below to see the date and times⬇️

     

    GO HERE TO REGISTER FOR THE ‘WHITE LABEL’ WORKSHOP →

     

    To your success,

    Todd Dickerson

     

    © Etison LLC 

     

    By reading this, you agree to all of the following: You understand this to be an expression of opinions and not professional advice. You are solely responsible for the use of any content and hold Etison LLC and all members and affiliates harmless in any event or claim.

     

    If you purchase anything through a link in this email, you should assume that we have an affiliate relationship with the company providing the product or service that you purchase, and that we will be paid in some way. We recommend that you do your own independent research before purchasing anything.

     

    Copyright © 2018+ Etison LLC. All Rights Reserved.

     

    To make sure you keep getting these emails, please add us to your address book or whitelist us.  If you don't want to receive any other emails, click on the unsubscribe link below.

     

    Questions? Here's our Support and Terms

    Etison LLC
    3443 W Bavaria St
    Eagle, ID 83616
    United States

    by "Todd Dickerson (ClickFunnels)" <noreply@clickfunnelsnotifications.com> - 10:08 - 12 Mar 2025
  • Do you have time for a quick call?

    Do you have time for a quick call?

    Good morning,

    It would be great to set up an initial meeting so I can get a better understanding of your business and explain in more detail how a partnership could help achieve your goals.

    Let me know when would be convenient and I can set up a Zoom, Skype or Teams meeting, or just give you a call.


    Best wishes,

    Jack Stevens
    Account Manager
    0113 5197 994




    Jack Stevens <jack@w1g.biz> wrote:


    Hi there,

    I hope you're well, I wanted to reach out because Your Telecoms Consultant has been recommended to us, and we have a unique opportunity that you may be interested in.

    The My Caddie Golf Platform featuring Birchwood Golf Club can help you and the team generate business from our members and visitors, we are looking for a local Telecommunication Company to become our official partner.

    Aligning your business with such a prestigious establishment can elevate your brand image and generate a positive association in the minds of potential customers.

    This partnership presents an ideal opportunity to put your company in front of a vast, local and affluent audience whilst also giving you complimentary golf to use as you see fit. Even if you're too busy at the moment, we still like to have you on board as a trusted local company, who could provide our other partners with advice and pass on referrals.

    Here are some of the features you will receive in the partnership:

    - Exclusivity for your sector.
    - Providing you with exposure on the members and visitors iPhone app.
    - Exposure on the members and visitors Android app.
    - Your branding on the flyovers on one of the holes on our Birchwood Golf Club web flyovers which is trackable and targeted to your demographic within the local area.
    - Access to our networking groups between all partners and plus ones.
    - Complimentary golf for you to entertain clients, colleagues and guests.


    The cost is the equivalent of just £26 per week for a 2-year partnership + £399 Artwork (one-off, optional) + VAT.

    Artwork is optional but if you want us to do it for you, you can change it up to 8 times over the 2 years so every quarter you can revamp it and put new offers on. We'll also give It to you for further marketing.

    I have reached out to a number of companies locally and will be operating on a first come first serve basis so if the above is of interest please let me know as soon as possible to avoid disappointment.


    Best wishes,

    Jack Stevens
    Account Manager
    0113 5197 994





    We have sent this email to info@learn.odoo.com having found your company contact details online. If you don't want to get any more emails from us you can stop them here.

    West 1 Group UK Limited, registered in England and Wales under company number 07574948. Our registered office is Unit 1 Airport West, Lancaster Way, Yeadon, Leeds, West Yorkshire, LS19 7ZA.

    Disclaimer: Our app operates independently. While we provide authentic and accurate hole-by-hole guides, we do not have a direct association with Birchwood Golf Club or claim any endorsement from them. We aim to offer golfers a reliable guide as they navigate their favourite courses. As a value-add for our advertisers, we offer free tee times at Birchwood Golf Club which we procure as any customer would, directly from the venue. We also host networking events, which may be held a various local venues as well as online sessions.Furthermore, advertisers have the unique opportunity to be featured in our flyovers of each golf hole. All offerings are subject to availability and terms.

    by "Jack Stevens" <jack@w1g.biz> - 05:55 - 12 Mar 2025
  • How can companies prioritize employee well-being?

    On McKinsey Perspectives

    Tips to help workers thrive ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ 
    McKinsey & Company
    Only McKinsey Perspectives
    Only McKinsey Perspectives

    Brought to you by Alex Panas, global leader of industries, & Axel Karlsson, global leader of functional practices and growth platforms

    Welcome to the latest edition of Only McKinsey Perspectives. We hope you find our insights useful. Let us know what you think at Alex_Panas@McKinsey.com and Axel_Karlsson@McKinsey.com.

    —Alex and Axel

    —Edited by Drew Holzfeind, editor, Chicago

    This email contains information about McKinsey's research, insights, services, or events. By opening our emails or clicking on links, you agree to our use of cookies and web tracking technology. For more information on how we use and protect your information, please review our privacy policy.

    You received this email because you subscribed to the Only McKinsey Perspectives newsletter, formerly known as Only McKinsey.

    Manage subscriptions | Unsubscribe

    Copyright © 2025 | McKinsey & Company, 3 World Trade Center, 175 Greenwich Street, New York, NY 10007


    by "Only McKinsey Perspectives" <publishing@email.mckinsey.com> - 01:36 - 12 Mar 2025
  • Explore Guowang Eureka's high-quality paper processing machinery

    Hello Greetings .

     

    Please allow me to introduce our company to you. Guowang Eureka Machinery is a company in China to produce high quality paper converting and folding carton equipments including Automatic Flatbed diecutter. Hot foil stamping machine. Folder gluer. Guillotine. Precision sheeter. Twin Knife sheete. Three knife trimmer. and etc. 

    We are professional manufacturer in China with ISO certificate and 5S management for over 30 years. 160.000 sqm and 400 employee's with modern workshop and over 200 CNC such as Mazak. Okuma. Starreg. Toshiba and etc. To bring you highest quality machinery from China and help you become competitive in your market. 
    Please don't hesitate to contact me if you are interested in our product. I will be glad to talk to you

     

    Best regards

    Guowang Eureka Machinery

    https://www.eureka-machinery.com


    by "Sales4" <Sales4@eureka-guowang.com> - 10:12 - 11 Mar 2025
  • Ensuring Power Safety: High-Performance Circuit Breaker Solutions

    Dear Manager:

     

    Hello,How are you?

     

    This is lisa from YUANKY manufactory.As a professional manufacturer in WENZHOU, our factory adopts advanced technology and strict quality control system, developed new circuit breaker products, product quality is good, reasonable price, good service, and passed ISO9001, CE, CB,SAA,KEMA,INTERTEK, ROHS, SEMKO and other international system certification.

     

    Please rest assured that our products enjoy great reputation, welcome to visit our website:http://www.yuanky.com/ & http://www.chnt.com/,We shall be most grateful that if we can discuss more friendly about our business transaction from now on.

     

     

    Looking forward for your early reply and keen interest.

    Best regards

    SubscribeUnsubscribe


    by "Fiddi Metaj" <panossallie32@gmail.com> - 04:41 - 11 Mar 2025
  • yes... I bought a $40M SaaS business for YOU!
    keep 100% of everything you sell!

    Hey it’s Russell – and here’s the deal…

    I recently spent $40M to buy a software company and then did something that I’m pretty sure gives my team a valid reason to put me in the insane asylum. 

    I’m letting YOU white label my software… FOR FREE!!

    FYI… White Label basically means you just slap your logo on my software product… Add your payment links to the landing page…

    And then… YOU Keep 100% of the sales!!!

    I’m not “giving” you a percentage of the sale.

    I’m not “taking a cut off the top.”

    You keep EVERYTHING!

    I’m revealing my certifiably crazy idea to do this in a FREE demo workshop this week! (click on the link below for more details)...

    REGISTER FOR THE FREE ‘WHITE LABEL’ DEMONSTRATION →

    Why am I doing this? What’s the catch? Is this a dream come true when it comes to building your own ‘SAAS’ side hustle???

    All of those questions and more will be answered IN THE FREE WORKSHOP

    Still have questions?? Here’s the deal – I put together a simple training demonstration where I’m going to show you the NEW white label software opportunity and how it works.  

    That way you can start promoting my new $40M business (And… our other funnel building products) as YOUR OWN and claim 100% of the sales!!

    Click the link below to see the date and times⬇️

    REGISTER FOR THE FREE ‘WHITE LABEL’ DEMONSTRATION →

     

    Small spoiler… We personally use the software from this $40M business ALL THE TIME… hence the reason I bought it!  

    Basically, what I’m saying is… People use this SaaS and want to buy it! 

    Now, due to the nature of this… I can’t unveil my “last secret” to everyone. 

    That’s why when you register, you’ll be asked to sign an NDA. The non-disclosure agreement simply means you agree to not disclose what you’ll learn from the demonstration to anyone else. 

    I know it may seem “over-the-top” but trust me, with the news I’m going to share, it could become THE game-changer for a number of entrepreneurs… and I can’t have that kind of information just floating about out there…

    I’ll share all of it and more in the ‘last secret’ workshop!

    Register below right now before we fill up…

    You’ll see the date and times when you click through. ⬇️

    REGISTER FOR THE FREE ‘WHITE LABEL’ DEMONSTRATION  →

    See you in the demonstration,

     

    Russell Brunson

     

    P.S. Don’t forget, you’re just one funnel away…

     

    Marketing Secrets
    3443 W Bavaria St
    Eagle, ID 83616
    United States

    by "Russell Brunson" <newsletter@marketingsecrets.com> - 04:35 - 11 Mar 2025
  • yes... I bought a $40M SaaS business for YOU!
    keep 100% of everything you sell!

    Hey it’s Russell – and here’s the deal…

    I recently spent $40M to buy a software company and then did something that I’m pretty sure gives my team a valid reason to put me in the insane asylum. 

    I’m letting YOU white label my software… FOR FREE!!

    FYI… White Label basically means you just slap your logo on my software product… Add your payment links to the landing page…

    And then… YOU Keep 100% of the sales!!!

    I’m not “giving” you a percentage of the sale.

    I’m not “taking a cut off the top.”

    You keep EVERYTHING!

    I’m revealing my certifiably crazy idea to do this in a FREE demo workshop this week! (click on the link below for more details)...

    REGISTER FOR THE FREE ‘WHITE LABEL’ DEMONSTRATION →

    Why am I doing this? What’s the catch? Is this a dream come true when it comes to building your own ‘SAAS’ side hustle???

    All of those questions and more will be answered IN THE FREE WORKSHOP

    Still have questions?? Here’s the deal – I put together a simple training demonstration where I’m going to show you the NEW white label software opportunity and how it works.  

    That way you can start promoting my new $40M business (And… our other funnel building products) as YOUR OWN and claim 100% of the sales!!

    Click the link below to see the date and times⬇️

    REGISTER FOR THE FREE ‘WHITE LABEL’ DEMONSTRATION →

     

    Small spoiler… We personally use the software from this $40M business ALL THE TIME… hence the reason I bought it!  

    Basically, what I’m saying is… People use this SaaS and want to buy it! 

    Now, due to the nature of this… I can’t unveil my “last secret” to everyone. 

    That’s why when you register, you’ll be asked to sign an NDA. The non-disclosure agreement simply means you agree to not disclose what you’ll learn from the demonstration to anyone else. 

    I know it may seem “over-the-top” but trust me, with the news I’m going to share, it could become THE game-changer for a number of entrepreneurs… and I can’t have that kind of information just floating about out there…

    I’ll share all of it and more in the ‘last secret’ workshop!

    Register below right now before we fill up…

    You’ll see the date and times when you click through. ⬇️

    REGISTER FOR THE FREE ‘WHITE LABEL’ DEMONSTRATION  →

    See you in the demonstration,

     

    Russell Brunson

     

    P.S. Don’t forget, you’re just one funnel away…

     

    Marketing Secrets
    3443 W Bavaria St
    Eagle, ID 83616
    United States

    by "Russell Brunson" <newsletter@marketingsecrets.com> - 04:34 - 11 Mar 2025
  • Facebook’s Database Handling Billions of Messages (Cassandra Deep Dive)

    Facebook’s Database Handling Billions of Messages (Cassandra Deep Dive)

    Cassandra is a powerful database system designed to store and manage massive amounts of data across many computers. 
    ͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­͏     ­
    Forwarded this email? Subscribe here for more

    Google’s 7 predictions on AI, LLM, and Observability (Sponsored)

    Read the 7 key takeaways from Google’s Director of AI and Datadog’s VP of Engineering as they break down their predictions of the future:

    • Smarter AI and LLM strategies for your org

    • Building customer trust in AI outputs

    • Scaling your tooling as LLM expertise grows

    Read the insights


    Disclaimer: The details in this post have been derived from Cassandra Research Paper and other sources. All credit for the technical details goes to the Facebook engineering team. The links to the original articles are present in the references section at the end of the post. We’ve attempted to analyze the details and provide our input about them. If you find any inaccuracies or omissions, please leave a comment, and we will do our best to fix them.

    Cassandra is a powerful database system designed to store and manage massive amounts of data across many computers. 

    Facebook originally developed it to support a feature called Inbox Search, which allows users to quickly search through their messages. The goal was to support billions of messages sent by Facebook users every day.

    Storing and efficiently searching through such a massive amount of data is a big challenge. Traditional databases, like MySQL, struggled to handle this workload because they were not designed to scale easily.

    To solve this, Facebook engineers took inspiration from two existing technologies:

    • Amazon Dynamo: A system that makes sure data is always available, even if some nodes fail. It does this by copying data to multiple machines and using a peer-to-peer structure where every node (computer) is equal.

    • Google Bigtable: A database used by Google to store large amounts of structured data efficiently. It introduced the idea of a column-based storage model, which makes it faster to access specific pieces of data.

    By combining the best parts of these two systems, Facebook created Cassandra, which became a decentralized, highly scalable, and fault-tolerant database. Later, it was released as open-source software, allowing companies like Netflix, Twitter, and Apple to use and improve it.

    In this article, we’ll take a deep dive into Cassandra and understand what makes it special.

    The Key Features of Cassandra

    Some key features of Cassandra are as follows:

    • Distributed Storage: Data is spread across many machines instead of being stored on a single server.

    • High Availability: Even if some machines fail, Cassandra continues to work without interruption.

    • No Single Point of Failure: Since there is no central control system, there is no weak spot that can bring everything down.

    • Scalability: It can easily handle increasing amounts of data by simply adding more machines to the network.


    Setting targets for developer productivity metrics — March 24th (Sponsored)

    Setting targets for developer productivity metrics takes careful consideration: we need to think through the potential tradeoffs or incentives created (hello Goodhart's law!), whether the targets are realistic, and which goals are appropriate at different levels of the organization. Join Abi Noda and Laura Tacho, DX CEO and CTO, for a discussion about how to properly set targets for productivity metrics so you can continue to push for improvement and accountability from your own teams.

    Join this discussion to learn:

    • How to think about potential pitfalls, like Goodhart’s Law and Campbell’s Law

    • How to set goals at different levels: frontline team, group, and organization level

    • Real-world examples of good and bad approaches to setting goals and targets for productivity metrics

    Register to join


    Cassandra’s Data Model

    Cassandra’s data model is quite different from traditional relational databases like MySQL.

    At its core, Cassandra’s data model is like a multi-dimensional map (or dictionary), where each piece of data is indexed by a row key. This means that instead of rigidly defining tables and columns in advance, data can be stored in a way that best suits the needs of the application.

    The data is organized into column families that are of two types:

    • Simple Column Family: It is a collection of standard key-value pairs where each key points to a set of columns. For example, if storing user information, the row key could be the User ID, and the columns could be name, email, phone number, etc.

    • Super Column Family: It is a more complex, nested structure that groups multiple columns under a "Super Column." This allows hierarchical data organization. For example, if storing a user’s messages, the row key could be User ID. Super Columns could be different conversations, and within each Super Column, individual messages could be stored.

    Columns can be sorted by timestamp or name, depending on the application’s needs. Primary key lookup is the main way to retrieve data. Instead of running complex queries like in SQL databases, Cassandra retrieves data by directly accessing the row key.

    The structure of a column consists of the following parts:

    • Name: The identifier for the column.

    • Value: The actual data stored in the column.

    • Timestamp: A timestamp that records when the data was written, helping in managing updates and conflict resolution.

    Cassandra API Overview

    Cassandra follows a key-based lookup approach, meaning every operation revolves around the row key. Unlike relational databases that support complex queries (like JOINs or subqueries), Cassandra prioritizes speed and scalability by keeping its API lightweight.

    Therefore, Cassandra provides a simple API structure that allows applications to interact with the database using three main operations.

    1 - Insert Data

    The interface is insert(table, key, rowMutation). This command adds new data to Cassandra. 

    The “table” is where the data will be stored and the “key” uniquely identifies the row. The rowMutation represents the changes made to the row, such as adding new columns or updating existing ones.

    2 - Retrieve Data

    The API interface is get(table, key, columnName). It fetches data from the database.

    The “table” specifies where to look and the “key” identifies which row to retrieve. The “columnName” specifies which part of the row is needed.

    3 - Delete Data

    The interface is delete(table, key, columnName).

    This command removes data from the database. It can delete an entire row or just a specific column within a row.

    Cassandra System Architecture

    Cassandra is designed as a highly scalable and fault-tolerant distributed database. 

    It does not rely on a single central server but instead follows a peer-to-peer model, where all nodes in the system are equal. 

    Cassandra organizes its nodes (servers) in a ring structure. Each piece of data is assigned to a node using consistent hashing, which ensures even distribution across all nodes. When new nodes are added, Cassandra automatically rebalances the data without requiring a complete reorganization.

    See the diagram below that shows how consistent hashing works.

    There is no master node, meaning any node can handle read and write requests. Since all nodes are equal, there is no single point of failure. If a node fails, other nodes in the system can continue handling requests without disruption.

    Replication Mechanisms

    Cassandra ensures that data is copied across multiple nodes to prevent data loss and improve availability. Developers can choose between different replication strategies:

    • Rack-Unaware Replication: Data is copied to N-1 successor nodes in the ring, meaning if one node goes down, its neighbors still have a copy. This method works well for small-scale deployments but does not account for hardware or network failures across different locations.

    • Rack-Aware Replication: Uses Zookeeper, a coordination service, to manage which nodes store replicas. This ensures that data copies are distributed across different racks (physical groupings of servers) in a data center.

    • Datacenter-Aware Replication: Distributes data copies across multiple data centers to ensure high availability even if an entire data center goes offline.

    Gossip Protocols in Cassandra

    Cassandra uses a gossip protocol to allow nodes (servers) in the system to communicate with each other efficiently. 

    This protocol is inspired by how rumors spread in real life. Instead of requiring a central system to keep track of everything, information is passed from one node to another in small, periodic updates.

    Gossip protocols are great because they have a low network overhead. Instead of flooding the system with updates, nodes exchange small bits of information at regular intervals. Even if some nodes go offline, others can still function because they share information across the network.

    Cassandra uses Scuttlebutt, a specialized Gossip Protocol, to keep track of which nodes are active or inactive. Each node periodically exchanges information about itself and other nodes with its neighbors, ensuring that the entire cluster remains up to date.

    Instead of a simple "up or down" status, Cassandra assigns a suspicion level to each node. 

    • If a node stops responding, its suspicion value starts increasing over time. 

    • If the value crosses a certain threshold, the system considers the node as "dead" and reroutes traffic to other nodes.

    In other words, Cassandra’s failure detection is probabilistic, meaning it adapts to network conditions instead of rigid timeout rules. This helps prevent false alarms caused by temporary delays or slow responses.

    Query Execution in Cassandra

    Cassandra is designed to handle high-speed data writes and efficient reads while ensuring durability and fault tolerance. 

    Instead of storing data like traditional relational databases, which write changes immediately to disk, Cassandra follows a log-structured storage model that optimizes speed and reliability.

    How Cassandra Handles Writes?

    Cassandra follows a multi-step process when writing data. The process consists of three main components:

    • Commit Log (Disk): Every time data is written to Cassandra, it is first recorded in the Commit Log. The Commit Log is stored on disk and ensures that data is not lost even if the system crashes before it is fully processed. This step makes Cassandra fault-tolerant.

    • Memtable (RAM): After writing to the Commit Log, the data is stored in memory in a structure called the Memtable. The Memtable acts as a temporary, in-memory cache for fast access. Because reading from RAM is faster than reading from disk, this speeds up query performance.

    • SSTables (Disk): When the Memtable reaches a certain size, it is flushed to disk as an SSTable (Sorted String Table). SSTables are immutable, meaning they are never modified after being written. Instead of updating existing files, Cassandra writes new SSTables and merges them later through a compaction process to optimize storage.

    This write process is efficient because, unlike traditional databases that modify data in place (causing random disk writes), Cassandra writes data sequentially, which is much faster and more efficient. Since SSTables are never modified, Cassandra avoids the overhead of complex locking mechanisms found in relational databases. Also, Cassandra can recover lost data if a node crashes because every write is first recorded in the Commit Log. 

    How Cassandra Handles Reads?

    Unlike traditional databases that rely on complex indexing, Cassandra optimizes read performance using a combination of in-memory lookups and efficient disk scans.

    Here’s a step-by-step look at the read process:

    • Check Memtable: When a read request comes in, Cassandra first checks the Memtable because it contains the most recent data. If the data is found in the Memtable, the result is returned immediately, making the read extremely fast.

    • Check SSTables on Disk: If the requested data is not in the Memtable, Cassandra searches for it in the SSTables stored on disk. Since SSTables are never updated, multiple versions of a row may exist in different SSTables, so Cassandra must scan multiple files.

    • Use Bloom Filters: To improve efficiency, Cassandra uses Bloom Filters, which are probabilistic data structures that help quickly determine if an SSTable might contain the requested data. If the Bloom Filter suggests that an SSTable does not contain the data, Cassandra skips that file entirely, reducing the number of disk reads. If the Bloom Filter indicates that an SSTable might contain the data, Cassandra checks the file for the requested row.

    • Merge and Return Most Recent Data: Since Cassandra writes new SSTables instead of modifying existing ones, multiple versions of a row might exist across different SSTables. The system merges all versions of the row, applying the latest updates based on timestamps, and returns the final result to the client.

    Facebook Inbox Search Use Case

    As mentioned, Cassandra was originally developed at Facebook to solve the challenge of storing and searching billions of messages efficiently. Before Cassandra, Facebook used MySQL for storing these messages, but as the platform grew, MySQL struggled to handle the increasing volume of data and high query load.

    To address this, Facebook deployed Cassandra on a 150-node cluster, which stored over 50 terabytes (TB) of messages. The system needed to support fast and scalable searches while handling constant write operations as users sent and received messages.

    Facebook’s Inbox Search allows users to find messages using two types of queries:

    • Term Search (Keyword-Based Search): It allows users to search for messages that contain specific words or phrases. For example, if a user searches for "project update," Cassandra retrieves all messages containing those words. The system stores word-to-message mappings using Super Column Families, where the row key is the user ID, the super columns are the words and the sub-columns store message IDs that contain those words.

    • Interaction Search (User-Based Search): It allows users to find messages exchanged with a specific person. For example, if a user searches for "Alice," Cassandra retrieves all messages exchanged between the user and Alice. This is implemented using another Super Column Family, where the row key is the user ID, the super columns are the contacts, and the sub-columns contain the message IDs exchanged with that contact.

    One of the biggest challenges in Facebook’s messaging system was ensuring low-latency searches across a massive dataset. Cassandra’s highly optimized architecture allowed it to achieve impressive performance:

    • Minimum Latency: As low as 7-8 milliseconds, meaning some searches return almost instantly.

    • Median Latency: Around 15-18 milliseconds, ensuring consistently fast responses for most queries.

    • Maximum Latency: In worst-case scenarios, searches could take up to 44 milliseconds, which is still very fast given the large dataset.


    Join the NVIDIA GTC Event (Virtual GTC is Free!) [Sponsored]

    Join your fellow engineers at GTC25 in San Jose, California (March 17-21). This flagship event by NVIDIA is bringing you more than 1000 session, 400+ exhibits, technical hands-on training, and tons of unique networking events.

    Register here


    Conclusion

    Cassandra is a highly scalable, distributed database system designed to handle large volumes of data while ensuring fault tolerance and high availability. 

    Its peer-to-peer architecture and ring-based design make it particularly well-suited for applications that require continuous uptime and seamless scaling across multiple data centers. One of Cassandra’s key strengths is its ability to handle high write-throughput efficiently, making it ideal for real-time applications, such as messaging platforms, recommendation systems, and IoT data storage. 

    However, Cassandra is not a replacement for traditional relational databases. It is not optimized for complex queries, joins, or transactional consistency, which makes it less suitable for applications requiring strong relational integrity.

    For businesses and developers building large-scale, distributed systems, Cassandra provides a robust, flexible, and highly available solution that can grow with demand while maintaining performance and reliability.

    References:


    SPONSOR US

    Get your product in front of more than 1,000,000 tech professionals.

    Our newsletter puts your products and services directly in front of an audience that matters - hundreds of thousands of engineering leaders and senior engineers - who have influence over significant tech decisions and big purchases.

    Space Fills Up Fast - Reserve Today

    Ad spots typically sell out about 4 weeks in advance. To ensure your ad reaches this influential audience, reserve your space now by emailing sponsorship@bytebytego.com.


     
    Like
    Comment
    Restack
     

    © 2025 ByteByteGo
    548 Market Street PMB 72296, San Francisco, CA 94104
    Unsubscribe

    Get the appStart writing


    by "ByteByteGo" <bytebytego@substack.com> - 11:43 - 11 Mar 2025
  • From chaos to confidence: accelerating API governance maturity

    Tyk Webinar | From chaos to confidence: accelerating API governance maturity

    Hi Md Abul,

    Managing APIs is fraught with chaos and uncertainty - but what if you could turn that around? On 27th March, we'll explore why it's not just about adding rigid controls and fighting complexity but about maturing API governance to empower organizations to scale and innovate confidently. We'd love for you to join our latest webinar and learn about it!

    From chaos to confidence: Accelerating API governance maturity with Tyk

    Why should you tune in?


    We're diving into how a universal API governance platform can simplify the complexities of the API economy by giving teams complete visibility, flexible policies, and automated guardrails. Plus, we'll walk you through the API governance toolkit and how you can use it to design a comprehensive governance strategy that works!

    Here's what you'll get out of it:

    Authentication-1

    Why a universal API governance platform enables future-readiness

    Next level integration

    How the API governance toolkit can help you get structured and measurable results

    Scale

    Scalable strategies to keep your governance policies consistent across your teams and environments

    Tyk logo

    How Tyk's governance platform helps streamline governance and makes policy enforcement a breeze

    Join us as we break down how a universal API governance platform can bring order to the chaos, keep your ecosystem secure, and help you scale with ease. Plus, get an exclusive sneak peek of Tyk’s governance platform in action - because who doesn’t love a good behind-the-scenes look? See you there!

    📅 Date: March 27th 2025

    🕙 Time: 10:00 AM EST/ 2:00 PM GMT

    📍 Location: Zoom webinar, discussion, demo

    See you soon, 


    Budha and team

    Tyk, Huckletree 199 Bishopsgate, Broadgate, London, City of London EC2M 3TY, United Kingdom, +44 (0)20 3409 1911

    Unsubscribe Manage preferences


    by "Budha from Tyk" <budha@tyk.io> - 11:25 - 11 Mar 2025
  • Explore high-quality customized packaging solutions at Zhongshan Tianchen New Materials Co., Ltd.

    Dear info,

     

    Greetings from Zhongshan Tianchen New Materials Co., Ltd.!

     

    My name is Anna, and I am glad to introduce you to our one-stop packaging material procurement platform, backed by over 20 years of expertise in the film packaging industry.

     

    We focus on the film packaging, including POF environmental protection heat shrink film, PVC shrink film, PVC label film, PE shrink film, OPP&CPP heat seal film. We will use high-quality products and professional services to provide customers with effective package material procurement solutions, create value for customers and achieve a win-win situation. Our packaging materials will make your products more attractive.

     

    What packaging materials do you want to find? I can customized it for you, when you offer the detail information, such as what packaging machine that you use and what product you want to package. We can offer you the effective solutions that you need.

     

    Thank you for considering Zhongshan Tianchen New Materials Co., Ltd. as your packaging material partner. We look forward to the opportunity to serve you and help your products shine.

     

    Best regards,

    Anna Yan

    Zhongshan Tianchen New Materials Co., Ltd.

    TeL: 86-18938732681

    WhatApp/Wechat: 86-13420303721

    Email: sales@tcnmaterials.com


    by "Schied Raisley" <schiedraisley@gmail.com> - 09:04 - 11 Mar 2025
  • Feedback on Workflow Builder

    Hi, 

     

    I noticed you recently filled out our form. Just wanted to check in and see how your experience with Workflow Builder has been so far. Have you had a chance to try it out yet? 

     

    If there’s any feedback or thoughts to share, they’d be greatly appreciated! And of course, if any help or a quick walkthrough is needed, feel free to reach out. 

     

    Thanks, 

    Ruslana

     

     


    by "Ruslana Brykaliuk" <ruslana.brykaliuk@synergycodes.com> - 06:45 - 11 Mar 2025
  • 2X your learning. Watch the New Relic Now+ recording any way you like.

    New Relic

    See how Intelligent Observability drives faster recovery, smarter innovation, and optimized costs.


    New Relic

    After New Relic Now+ on February 27th, here’s a follow up on how New Relic’s biggest launch of new innovations can address your top priorities:

    • 20+ new innovations, including AI-powered predictions and agentic integrations.
    • Real-world gains: How Intelligent Observability fuels business uptime and developer velocity.
    • Customer insights from American Red Cross and New York Life.
    • Training toward New Relic certifications, and deep dive demos into new capabilities.
    The event recording is ready, giving you a unique way to explore the future of observability.

    Have questions or are curious about how Intelligent Observability can benefit your business? Please get in touch.
      Watch Now  
      Watch Now  

    by "New Relic" <emeamarketing@newrelic.com> - 06:00 - 11 Mar 2025
  • Final Reminder: Don’t Miss Out on an Unforgettable Golf Day
    Our remaining slots for this year are nearly fully booked...
     ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌

    Hello Sir/Madam,

    This is our final message about your potential corporate golf day at Poulton Park Golf Club. Our remaining slots for this year are nearly fully booked, and we don’t want you to miss out on a truly remarkable experience.

     

    Here’s what’s on the line:

    • All-Inclusive Management: From invitations to on-the-day logistics, we’ll handle it.
    • State-of-the-Art Tech: Live scoring, drones, and screens to entertain and inform your guests.
    • Flexible Payment Plans: Spread the cost in a way that suits your budget and timeline.

    If you’d like the peace of mind that comes from having everything handled for you, now’s the time to act. Reply to this email or give me a ring on +44 (0)7441 351 701 to confirm your interest, and we’ll do our best to accommodate your needs.

    Thank you for your time. We hope to help you create a golf day that exceeds all your expectations!

    Best regards,

     

    Josh Budz

    Senior Business Development Manager

    corporategolfday.com

    +44 (0)121 2709072

    +44 (0)7441 351 701

            

    +44 (0)121 2709072

    info@corporategolfer.co.uk

     

    by "Josh - Corporate Golf Day" <info@corporategolfer.co.uk> - 05:02 - 11 Mar 2025
  • Introducing Recruit: Hire Faster with Your Free Trial

    Introducing Recruit: Hire Faster with Your Free Trial

    Recruit header image

    Hi MD,

     

    We know hiring globally can be overwhelming—disconnected systems, compliance headaches, and the constant pressure to fill roles fast. That’s why we built Recruit, a smarter, more efficient platform designed to simplify your hiring process from start to finish.

    No credit card required. Try it now!

    🌟 How Recruit Makes Global Hiring Simple 🌟

    Talent Insights

    📊 Know Where to Find Talent

    Gain real-time insights on talent availability, salaries, and local hiring conditions, so you can focus your efforts in the right markets and hire smarter.

    📢 Post Jobs That Attract the Right Candidates

    Easily create job posts tailored to your specific needs—location, time zone, and remote preferences—so you get qualified candidates from the start.

     

    Job Posting
    Recommended candidates

    🤖 Get Matched with the Best Candidates

    Let Recruit’s AI surface top candidates instantly, based on skills, location, and compliance—reducing disqualifications and speeding up your hiring process.

    🔍 Source With Ease

    Skip filters and complex boolean strings—just type what you need. Search through millions of global profiles to find the right candidates quickly and effortlessly.

    Employer_Sourcing_Start smart search
    track candidates

    📈 Track Your Candidates in One Place

    Manage your candidates from application to hire in a single system. No more juggling multiple tools.

    📝 Onboard New Hires with Ease

    Hire confidently with Remote’s EOR integration, ensuring compliance and smooth onboarding for new hires worldwide.

     

    Onboarding Process

    Don’t wait—try Recruit today and transform your recruitment process.

    Section Title-2
    Linkedin icon Instagram icon Twitter Icon Website icon YouTube icon Facebook icon

    You received this email because you are subscribed to
    Remote News & Offers from Remote Europe Holding B.V
    Update your email preferences to choose the types of emails you receive.
    Unsubscribe from all future emails

    Remote Europe Holding B.V
    Kraijenhoffstraat 137A 1018RG Amsterdam The Netherlands

    Copyright © 2025 Remote Europe Holding B.V All rights reserved.

    by "Remote Team" <hello@talent.remote.com> - 02:06 - 11 Mar 2025
  • How can women succeed more at work?

    On McKinsey Perspectives

    Overcome career obstacles ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌   ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ 
    McKinsey & Company
    Only McKinsey Perspectives
    Only McKinsey Perspectives

    Brought to you by Alex Panas, global leader of industries, & Axel Karlsson, global leader of functional practices and growth platforms

    Welcome to the latest edition of Only McKinsey Perspectives. We hope you find our insights useful. Let us know what you think at Alex_Panas@McKinsey.com and Axel_Karlsson@McKinsey.com.

    —Alex and Axel

    —Edited by Belinda Yu, editor, Atlanta

    This email contains information about McKinsey's research, insights, services, or events. By opening our emails or clicking on links, you agree to our use of cookies and web tracking technology. For more information on how we use and protect your information, please review our privacy policy.

    You received this email because you subscribed to the Only McKinsey Perspectives newsletter, formerly known as Only McKinsey.

    Manage subscriptions | Unsubscribe

    Copyright © 2025 | McKinsey & Company, 3 World Trade Center, 175 Greenwich Street, New York, NY 10007


    by "Only McKinsey Perspectives" <publishing@email.mckinsey.com> - 11:26 - 10 Mar 2025
  • Last chance: How to drive growth with SaaS ERP
    SAP logo

    Image

    Time is running out to register for our webcast, happening tomorrow.

    During this session with digital transformation expert Aušra Gustainiene, you’ll learn how to:

    • Integrate SaaS ERP with key business domains for unstoppable growth.

    • Use real-time data for smarter decisions with help from AI.

    • Unlock tangible outcomes through real-world use cases.

    Don’t miss this chance to see how AI-enabled cloud ERP can help your business grow. Register today.

    Products     Services and Support     Learning     Community     Partner     About

     

    Contact us

    See our complete list of local country numbers

      SAP (Legal Disclosure | SAP)
      This e-mail may contain trade secrets or privileged, undisclosed, or otherwise confidential information. If you have received this e-mail in error, you are hereby notified that any review, copying, or distribution of it is strictly prohibited. Please inform us immediately and destroy the original transmittal. Thank you for your cooperation.

      You are receiving this e-mail for one or more of the following reasons: you are an SAP customer, you were an SAP customer, SAP was asked to contact you by one of your colleagues, you expressed interest in one or more of our products or services, or you participated in or expressed interest to participate in a webinar, seminar, or event. SAP Privacy Statement

      This email was sent to info@learn.odoo.com on behalf of the SAP Group with which you have a business relationship. If you would like to have more information about your Data Controller(s) please click here to contact webmaster@sap.com.


      This offer is extended to you under the condition that your acceptance does not violate any applicable laws or policies within your organization. If you are unsure of whether your acceptance may violate any such laws or policies, we strongly encourage you to seek advice from your ethics or compliance official. For organizations that are unable to accept all or a portion of this complimentary offer and would like to pay for their own expenses, upon request, SAP will provide a reasonable market value and an invoice or other suitable payment process.

      This e-mail was sent to info@learn.odoo.com by SAP and provides information on SAP’s products and services that may be of interest to you. If you received this e-mail in error, or if you no longer wish to receive communications from the SAP Group of companies, you can unsubscribe here.

      To ensure you continue to receive SAP related information properly, please add sap@mailsap.com to your address book or safe senders list.


        by "SAP" <sap@mailsap.com> - 11:07 - 10 Mar 2025
      • Hippoo Cash coupons worth US$25 million are being distributed.The quantity id limited,don’t miss it

         


         

        WAIT, there is something you seem to be interested in,

        and Cash vouchers with a total value of US$1.5 billion are being distributed.

        The quantity is limited. Don't miss it.

         

        Dear customers, 

         

        We recommended the product you may interested in. There are great quality clothes and shoes on sale at super low prices. It takes you 1 minute to register a Hippoo Haul account, and you will immediately get a $10 balance to use to purchase any product.

        First come, First served. Dont miss out!


             

         

        You may like:

        Limited time low price, many benefits are being distributed

         


        by "CUomo Emo" <cuomoemo454@gmail.com> - 12:24 - 10 Mar 2025
      • [FHL 10 ENCORE] We’re getting started soon!
        Are you registered? We go live TODAY!…

        Hey it’s Todd!

         

        I’ve been hitting you up all week about FHL 10 ‘The Last Dance’ Encore from Las Vegas, and now it’s officially here! 

         

        Today is the day. 

         

        I hope you’ve registered.  If not please register here so we can get you the special ACCESS LINK (which will be emailed to you) to watch. 

         

        REGISTER FOR FHL 10 ‘THE LAST DANCE’ ENCORE NOW >>

        You don’t want to miss this encore!  It was the last FHL, and we definitely went out with a bang.  Some of the best presentations I’ve ever seen at FHL.

         

        Over the next three days: 

         

        You’ll see nearly ALL of the presentations from FHL 10 and we’ll also have some interactive sessions you’ll want to participate in.

         

        We’re starting this morning, so make sure you’re registered.

         

        Three days of FHL awesomeness, here we come!

         

        REGISTER FOR FHL 10 ‘THE LAST DANCE’ ENCORE NOW >>

        See you there!

         

        © Etison LLC 

         

        By reading this, you agree to all of the following: You understand this to be an expression of opinions and not professional advice. You are solely responsible for the use of any content and hold Etison LLC and all members and affiliates harmless in any event or claim.

         

        If you purchase anything through a link in this email, you should assume that we have an affiliate relationship with the company providing the product or service that you purchase, and that we will be paid in some way. We recommend that you do your own independent research before purchasing anything.

         

        Copyright © 2018+ Etison LLC. All Rights Reserved.

         

        To make sure you keep getting these emails, please add us to your address book or whitelist us.  If you don't want to receive any other emails, click on the unsubscribe link below.

         

        Questions? Here's our Support and Terms

        Etison LLC
        3443 W Bavaria St
        Eagle, ID 83616
        United States

        by "Todd Dickerson (ClickFunnels)" <noreply@clickfunnelsnotifications.com> - 11:18 - 10 Mar 2025
      • How is your transformation going?

        How is your transformation going?

        Third Stage Consulting Group

        Hi MD Abul,

        I hope all is well with you! I wanted to check in to see if you saw our new white paper the Business Transformation Playbook? It is packed full of digital transformation best practices and proven tactics to ensure your project is successful. 

        If you have downloaded it, I'd welcome and appreciate any feedback. 

        How is your business transformation going in general? Anything my team and I can help with? I am happy to be an informal sounding board for you and your team. 

        Looking forward to hearing from you!

        Best,

        Eric

        Best regards,

        Eric Kimberling 

        CEO and Founder

        +1-720-837-3604

        www.ThirdStage-Consulting.com

        Some additional information in one line

        by "Eric Kimberling" <eric.kimberling@thirdstage-consulting.com> - 10:49 - 10 Mar 2025