[HN Gopher] Socketcluster: Highly scalable pub/sub and RPC SDK
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       Socketcluster: Highly scalable pub/sub and RPC SDK
        
       Author : ofrzeta
       Score  : 19 points
       Date   : 2025-04-14 15:45 UTC (7 hours ago)
        
 (HTM) web link (socketcluster.io)
 (TXT) w3m dump (socketcluster.io)
        
       | rbranson wrote:
       | architecture docs are scant, but it appears this horizontally
       | scales channels by adding "broker" instances and horizontally
       | scales consumers by adding "worker" instances? i.e. a broker only
       | needs to ever broadcast a message to the maximum number of worker
       | instances in the cluster.
        
       | cultofmetatron wrote:
       | elixir has an even better offering baked into phoenix. unlike
       | node which is limited to 1 process and necessitating a complex
       | IPC cluster, erlang's vm can use all cpus on the host as well as
       | connect different machines. The end result is a much more robust
       | websocket solution that can relay state to whichever machine
       | resumes the connection.
        
         | ofrzeta wrote:
         | Are you talking about channels or some other concept?
         | https://hexdocs.pm/phoenix/channels.html
        
       | R4tY9jQ2 wrote:
       | SocketCluster's approach to horizontal scaling with pub/sub
       | channels and rooms is elegant. The support for both HTTP and
       | WebSockets through the same port simplifies deployment, and the
       | circuit breaker pattern is a smart choice for resilience.
       | Impressive that it's maintained for 10+ years.
        
       | a3FgH9Lp wrote:
       | SocketCluster's approach to real-time communication with pub/sub,
       | horizontal scaling and automatic recovery seems solid. Their
       | focus on simplicity while handling complex distributed systems is
       | impressive. I wonder how their performance compares to Socket.IO
       | or Centrifugo in high-load production environments.
        
       | jitl wrote:
       | What's the big idea? After scrolling and clicking I'm not sure
       | what this gets me. What's the durability guarantee? Is this at-
       | least-once, at-most-once, or thoughts-and-prayers message
       | delivery? What happens when a node crashes?
        
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       (page generated 2025-04-14 23:01 UTC)