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Overview
Centrifugo is an open-source real-time messaging server — a self-hosted alternative to PubNub, Pusher, Ably, Socket.IO, Phoenix.PubSub & SignalR. Set up once and forever.
News
Scaling Redis Pub/Sub to Millions of Channels and Hundreds of Subscriber Nodes
Redis Pub/Sub is a popular choice for passing messages between nodes in real-time messaging systems. It lets a system run many nodes - each holding many real-time client connections - and deliver each message to the nodes that have interested subscribers.
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Multi-node Centrifugo on PostgreSQL alone
For most of Centrifugo's history, scaling past one node meant adding Redis. The new PostgreSQL controller makes Redis optional. Together with the stream broker and map broker shipped earlier in this release cycle, Centrifugo's full OSS messaging cluster n
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Transactional publishing for stream subscriptions with PostgreSQL
In Part 2 of the map subscriptions series, we introduced a PostgreSQL map broker that lets your application publish real-time map updates inside a database transaction - removing the dual-write problem when you publish via the broker's SQL function from y
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Map subscriptions (Part 2) - when your PostgreSQL transaction is your real-time publish
In the previous blog post we introduced Map Subscriptions. We mentioned that Centrifugo has PostgreSQL Map Broker, in this post we are providing more details about it. The PostgreSQL map broker allows publishing to a Centrifugo Map within an application S
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Map subscriptions (Part 1) - synchronized key-value state and presence
A map subscription - new in Centrifugo v6.8.0 - is a real-time key-value collection that Centrifugo manages. The map broker stores the entries; the SDK keeps a live/realtime mirror on every subscribed client. Subscribe - and you get the current snapshot,
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