What is data retention in Prometheus?
Data retention in Prometheus refers to how long the time series data is stored before it is deleted. By default, Prometheus retains data for 15 days.
Can I change the data retention period?
Yes, you can change the data retention period by setting the --storage.tsdb.retention.time
flag when starting Prometheus.
What happens if I set a very long retention period?
Setting a long retention period can lead to increased storage requirements and may affect performance, so it's important to monitor your storage usage.
Is there a way to back up my data before it gets deleted?
Yes, you can use tools like Prometheus Snapshot or external storage solutions to back up your data before it gets deleted.
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