Aias00 opened a new issue, #10804:
URL: https://github.com/apache/rocketmq/issues/10804

   ## Problem
   
   `HeartbeatSyncer` logs full heartbeat sync data and subscription sets in 
several failure/debug paths:
   
   - `sync register heart beat. topic:{}, data:{}`
   - `heartbeat register broadcast failed ... subList:{}`
   - `heartbeat submit register broadcast failed ... subList:{}`
   - `start process remote channel. data:{}, clientChannelInfo:{}`
   - `heartbeat consume message failed. msg:{}, data:{}`
   
   The heartbeat data contains `SubscriptionData`, including subscription 
expressions. These logs are useful for diagnostics, but printing the full 
payload can expose business subscription details and creates large log lines 
under client churn.
   
   ## Expected behavior
   
   Proxy heartbeat sync logs should keep diagnostic fields such as heartbeat 
type, group, clientId, client metadata, channel data presence, subscription 
count, and topic names, without logging the full subscription expressions or 
raw system message body.
   
   ## Scope
   
   RocketMQ Proxy / gRPC client runtime diagnostics and safe logging, related 
to the Proxy Admin / client-management track.


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