This section provides information about the retention interval period for the metrics and events data in the Elasticsearch database and the latency between the collection of data and its aggregated data.
The metrics and events service acquires the data and holds it in the Elasticsearch database for certain period. This period varies with the type of metric data or events. At the end of the period, the ILM policy deletes the expired data points.
All the metrics or events data are moved to different states based on the retention intervals in various states like HOT, WARM, COLD, and DELETE. This management takes place automatically whenever the indexes reach the configured threshold and finally deletes the data. Deleted time series do not appear in the dashboards or in the Query API results.
|Category||Retention Interval||Data Type|
|Retention of raw metric data||45 days||Metric|
|Retention of hourly aggregated metric data||84 days||Metric|
|Retention of daily aggregated metric data||1 year||Metric|
|Retention of weekly aggregated metric data||5 years||Metric|
|Retention of events history data||1 year||Event|
|Retention of events chaining history data||1 year||Event|
|Retention of audit data||1 year||Event|