Tools / Apache HertzBeat Interview Questions
How does the collector cluster handle failover?
When a collector in the cluster goes offline, the manager detects it and automatically reassigns its in-flight and scheduled tasks to other available collectors, so monitoring continuity isn't lost while one node is down.
When the collector comes back online, it doesn't simply resume its old task list. Instead it re-registers with the manager and receives a fresh set of tasks based on the current load distribution across the cluster at that moment, which keeps the workload balanced rather than forcing tasks back to their original owner.
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