Data Store backup: need a way to delay deleting files (garbage collection)
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Key: JCR-1722
URL: https://issues.apache.org/jira/browse/JCR-1722
Project: Jackrabbit
Issue Type: New Feature
Components: jackrabbit-core
Reporter: Thomas Mueller
Assignee: Thomas Mueller
Fix For: 1.5
During a backup, objects in the data store must not be modified or deleted.
Otherwise the backup is consistent.
Objects in the data store are never modified. The only problem is if objects
are deleted while the backup is running. The data store garbage collection is
the only place where objects are deleted.
There should be a way for a backup tool to 'flag' the data store (file data
store and database data store) to not delete entries. For the file data store,
this could be done by placing a specially named file in the root folder. For
the database data store a specially named entry could be used. Another idea is
to use an in-memory state only, however this solution doesn't work if multiple
repositories share the same data store.
To support shared data stores, the specially named file name / object name
should consist of a fixed part (for example the prefix 'stopdelete') and a
unique id (for example a UUID).
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