Hi guys,
it's essential that we have a decent Changelog system in order to be
able to build a reliable server, plus use it for replication eventually.
The currengt changelog system has many advantages :
- it basically works
- it's damn fast
- it can be extended easily
But it also has some drawbacks :
- it currently stores changes info in memory
- it stores forward and revert changes (we don't need revert usually)
- it stores changes in LdifEntry which uses Attributes instead of the
new Entry API
We need to extend the ChangeLog API to get able to handle :
- on disk storage
- Entry instead of Attrinutes
- only forward operations
- fast lookup for an entry by its DN, or entryCSN/UUID attributes.
We may also add a new interceptor for that purpose, namely a
JournalInterceptor.
Nothing complicated though. My idea is to use a simple file, being
rotated when we put some tag, plus some JDBM index around to be able to
lookup for DN, UUID or entryCSN.
wdyt ?
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cordialement, regards,
Emmanuel Lécharny
www.iktek.com
directory.apache.org
