2.0 KiB
Support Time To Live on Event Database
https://blueprints.launchpad.net/ceilometer/+spec/event-database-ttl
Problem description
Event database grows over time, after we dump data to larger storage system, the old data in event database should be cleared, but now, there is no such way to do it.
Proposed change
Add time to live feature on event database, just like what we do on metering database. A new option event_time_to_live will be added, such as what we do for metering database.
Alternatives
None
Data model impact
None
REST API impact
None
Security impact
None
Pipeline impact
None
Other end user impact
User now can clean event database when they run ceilometer-expirer and set event_time_to_live options to value that larger than 0.
Performance/Scalability Impacts
Performance can be improved since event database can keep light.
Other deployer impact
None
Developer impact
None
Implementation
Assignee(s)
- Primary assignee:
-
aji-zqfan
- Other contributors:
-
Contributors who want to help on databases except MongoDB
- Ongoing maintainer:
-
aji-zqfan
Work Items
- Implement it on MongoDB
- Implement it on other database back end
Future lifecycle
None
Dependencies
None
Testing
Unit test code will be added along with source code.
Documentation Impact
New option will be added, so OS Configuration Document should be update, and new feature is added, Administrator's Guide Document should be updated too. But not this spec's job.
References
None