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
