Stefan Egli created SLING-10854:
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Summary: Introduce cleanup job of old slingId data in discovery
Key: SLING-10854
URL: https://issues.apache.org/jira/browse/SLING-10854
Project: Sling
Issue Type: Improvement
Components: Discovery
Affects Versions: Discovery Oak 1.2.34
Reporter: Stefan Egli
Discovery.oak stores nodes and properties per slingId under
{{/var/discovery/oak}}. In a scenario where the slingIds are stable things are
fine. If the slingIds change frequently, old slingId-related data stays as
garbage and accumulates.
We should introduce a cleanup job to delete old slingId data. The leader could
execute this to avoid race conditions. We might need to add some additional
property to indicate age of slingIds (there's already the
{{/var/discovery/oak/clusterInstances/leaderElectionIdCreatedAt}} property
which gets updated upon each discovery.oak bundle activation - but it's
somewhat indirect. Having a new, dedicated property sounds cleaner (this one
could be used to clean up old data though)
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