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Use the {{stack}} {{monitor-features}} to view metrics and gain insight into how your {{ls}} deployment is running. In the overview dashboard, you can see all events received and sent by Logstash, plus info about memory usage and uptime:
Then you can drill down to see stats about a specific node:
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A {{ls}} node is considered unique based on its persistent UUID, which is written to the path.data directory when the node starts.
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Before you can use the monitoring UI, configure Logstash monitoring.
For information about using the Monitoring UI, see {{monitoring}} in {{kib}}.