Retention policies define time periods when monitoring data is sampled, aggregated, and purged from your system. All topology objects in Foglight form a hierarchy whose root is the super-type TopologyObject. Retention policies are inherited from the object’s type. These policies may be overwritten, in which case the modification applies to all child types in the hierarchy.
Here is a example of adding a Purge policy to the root TopologyObject, so that most collected metrics will be automatically removed from the Foglight database after 6 months.
Open the left the Navigation Panel, and choose Administration > Data > Manage Retention Policies.The Manage Retention Policies dashboard appears in the display area.
You can sort the topology types or filter them by cartridge.
To edit the default retention policy period:
1. In the Manage Retention Policies dashboard, locate the TopologyObject type.
2. Review the default retention policies for the TopologyObject type.
Expand the TopologyObject node to see the default policy periods.
A set of policies appears under the TopologyObject node.
This translates to:
- After 15 minutes, store 15 minute average data.
- Data older than 4 hours old are eligible for rollup (they are actually only rolled up once a day during the database rollup) to 1 hour averages.
- Data older than 5 days old are eligible for rollup (they are actually only rolled up once per day during the database rollup) to 4 hour averages.
3. Click on TopologyObject to edit the default retention policy.
4. Edit the existing roll-up period or configure the retention policy to purge the data.
In the Roll-up to column, specify the duration and the measurement unit of the roll-up period. For example: 1 hour.
If you want the data to purge after the retention period, click the box on the right and select purge from the list.
5. Click Save.
The Edit Retention Policy Period dialog box closes and a message appears in the upper-left, indicating the success of the edit operation.
You'll find more detail about this topic in the "Working with Data" chapter of the Foglight Administration PDF guide or Foglight's online Help.
Regards,
Brian