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How would you design a twitter like message system, how to design the messaging system?


How would you design a twitter like message system, how to design the messaging system?

By : michal
Date : October 26 2020, 11:52 AM
around this issue The High Scalability blog has a number of articles on twitter and it's infrastructure and changes over time that might interest you.
code :


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Design question: How would you design a messaging/inbox system?

Design question: How would you design a messaging/inbox system?


By : dsfgjklsd
Date : March 29 2020, 07:55 AM
may help you . Many websites have the concept of sending messages from user to user. When you send a message to another user, the message would show up in their inbox. You could respond to the message, and it would show up as a new entry in that message thread.
code :
user
 id
 name

messages
 id
 to_user_id
 from_user_id
 title
 date

message_post
 id
 message_id
 user_id
 message
 date
C# COM Messaging system design

C# COM Messaging system design


By : G.B
Date : March 29 2020, 07:55 AM
This might help you You'll probably want a dedicated thread that handles the communications. You'll need a Queue on which the client code can push a message, protect it with a ReaderWriterLockSlim. No need for the DataReceived event, just call SerialPort.Read() directly. Detect timeouts with the ReadTimeout property. If you get responses that need to go back to the client code then use an event.
Watch out designing the protocol, it isn't that easy to get right. You'll protect against loss of bytes with your scheme, but it is just as likely for the ACK to be lost. The microcontroller will see the same command twice. Now you need a "message number" to suppress duplicates and a way for both ends to synchronize them. Take a look at RFC 916.
How to make this system design and logic more efficient? (internal messaging system)

How to make this system design and logic more efficient? (internal messaging system)


By : Agnaedig
Date : March 29 2020, 07:55 AM
I hope this helps . Here's a suggestion that come to my mind :
How about creating Message_Read instances on the fly . I mean when you post a message don't create any Message_Read for any of the users. when a user logs in the system checks to see if he has a message that has not been read (no message read exists for it) and alert the user to read them. When a user reads a message a Message_Read record is created for him preventing the system from showing the same alert again. Whenever the status of a message is changed and you want to alert the change you can either delete its Message_Read instances or you can move them to an archive table for keeping the history if necessary , thus there's no Message_Read for that message and user will be notified to read it again.
App Engine Messaging System with Message Status - Design Pattern

App Engine Messaging System with Message Status - Design Pattern


By : Daniel
Date : March 29 2020, 07:55 AM
help you fix your problem For the easiest querying - split your 'receivers' list into four different lists - 'unread', 'read', 'archived', 'deleted' and shuffle the receiver record between the lists as appropriate.
Messaging system design - one queue per one message type vs. one queue for all messages

Messaging system design - one queue per one message type vs. one queue for all messages


By : user3289101
Date : March 29 2020, 07:55 AM
hop of those help? If ordering of your messages is unimportant, or is handled appropriately by your app then of course having each message in a separate queue will allow for more robust scaling options. But at the expense of having to maintain 5 queues instead of 2. I'm not sure how much is that harder, but suspect not much once you get used to it.
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